Datatables Ajax Reload With Parameters

In an environment where the data shown in the table can be updated at the server-side, it is often useful to be able to reload the table, showing the latest data. In this code is used the server-side processing mode by setting the bServerSide parameter to true. Refresh Request With Refresh Request you define individual parameters to AJAX, and only the values in the specified parameters are sent to your JSFHandler (data. Hello all, Thanks in advance for looking at this. How to refresh a single row by id row? I update a record via form directly to the table (via restapi), as do I refresh only the row ID? and the entire table for an insert for example?. But when we refresh Datatbale with Datatable ajax. DataTables Plugin - Live Ajax. I'd like to be able to reload the table's data with the current state of those parameters. However, to integrate DataTables with server-side code, the developer must know the protocols and parameters that are sent by DataTables and how to use them on the server side. Mauro Cazabonnet used Ask the Experts. reload()即可重新获取数据但如果数据是从别处直接拿过来的数组该如何更新,具体操作是记录当前页码清除整个表格 博文 来自: 豆之助. Datatables是一款基于jQuery表格插件。目前,Datatables最新版本为1. Once table is loaded, it seems that the reload/destroy methods aren’t reloading data with a new ajax call, but rather just refreshing the existing table without making a second call. It is very much based on the DataTables ajax option and the two are very similar in operation. How to Refresh DataTables? ajax. For this article I will make use of an ASP. This can be done in one of two ways - either using the aaData initialisation parameter which takes an array of data, or using the sAjaxSource initialisation parameter which will have DataTables go to that source with an XHR call and load data from there. First it loads the data initially as soon as we open up the page. Ok so I have a page that loads a partial view which contains a datatable, the partial view is loaded with a ajax command based on a selectpicker change. And all works right (if you stay on page 1). Other threads similar to Angular datatables reload. reload(null, false); or by setting dataTable. Here Mudassar Ahmed Khan has explained how to dynamically load images from database along with other information when is page scrolling down using DataList control in ASP. bRetrieve Show details: Retrieve the DataTables object for the given selector. Bug tracker Roadmap (vote for features) About Docs Service status. This sample demonstrates how to create a DataTable manually with specific schema definitions: Create multiple DataTables and define the initial columns. Does anyone know how to dynamically add a parameter to the ajax call before table. C# code for handling Ajax calls for the DataTables. 接收一个对象,其用法类同于 jQuery. One thing that's curiously difficult though, is how to refresh the contents in a simple way, so I for my own reference, and possibly for the benefit of others as well, here's a complete example of one way if doing this:. /// public class DTParameters {/// < summary > /// Draw counter. Datatable refresh after jquery ajax. This will create a file: App\DataTables\UsersDataTable class with the following methods: ajax() - which will handle the ajax response to our datatable query() - which will be used to build our base query object. Update UsersDataTable class and set the columns and parameters needed to render our dataTable. ajax(url[, options]) $. Jquery Datatable Ajax Example. Fetching data for data tables using ajax method Feb 05, 2016 Mallow ROR 1 Comment DataTables can take the data that it is to display from a number of different sources like DOM, JavaScript array, Ajax source, Server-side processing. 如果一个datatable生成的表格是ajax请求的数据的,我们只需要xxx. /// This is used by DataTables to ensure that the Ajax returns from server-side processing requests are drawn in sequence by DataTables (Ajax requests are asynchronous and thus can return out of sequence). Initially, when the page loaded Datatables is generated with complete posts and when we pass from and to dates as custom ajax request in Datatables we get a filtered result. This article shows how you can easily reload table content in ASP. NET / MVC / MVC datatables - refreshing using ajax MVC datatables - refreshing using ajax [Answered] RSS 2 replies. I'm looking to refresh the datatable with the newest data during a close action ajax. ajaxSetup(). jQuery DataTables allows to display a processing indicator using processing option. 15。 Datatables中文网致力于为广大国内开发者提供详尽的中文文档、代码实例等,助力开发者使用这个jQuery表格插件. 0 Released on 11 October 2018 and compatible with MW 1. Net using C# and VB. As of jQuery 1. The above communications are used by Editor for the Create, Update and Delete actions, while the Read operation is performed by DataTables. In an environment where the data shown in the table can be updated at the server-side, it is often useful to be able to reload the table, showing the latest data. ajax() and reloading a dynamic table - jQuery Forum. jQuery is the most awesome javascript library that exists. Although, by default it is pure client side, it might be configured to use data from the server via AJAX calls in order to improve performance. Load/Reload the table data from an Ajax source. By definition, the Decorator Pattern is used for adding additional functionality to a particular object as opposed to a class of objects. Pass extra parameter(s) with datatable (server-side). How to use the DataTables debugger. DataTable has Draw method to refresh a table without. DataTables CDN files for DataTables 1. I am using DataTables 1. If the DataTables setting rowid is not specified, then the entire table will be reloaded (via ajax. How to Refresh DataTables? ajax. Server-Side Data in jQuery DataTables with ASP. ajax method is the real deal for any (not only JSON related) web request. It’s a very small table (~20 rows max), so for speed I’m just going with a reload of the whole table. I have a dropdown and a dataTable in the page everytime i change value in the dropdown, i have to hide dataTable in the page, which is NOT working what i observed is that change in the value for drop down, i can send ajax request only to hide and display individual components like textbox what it's not working for the dataTable. We will cover this tutorial step by step by create live example of Datatables with add, edit and delete records using PHP and MySQL. Editor() constructor when creating a new Editor instance. Jquery Datatable using AJAX. Description. There are a lot of advanced option available in jQgrid plugin, you can explore more jQgrid features as per you requirement. How to properly use JQuery Datatable sAjaxSource with Apex providing JSON source I've seen comments from Salesforce about query string parameters (the "core. reload() - e. We are built this project on ASP. Once table is loaded, it seems that the reload/destroy methods aren’t reloading data with a new ajax call, but rather just refreshing the existing table without making a second call. So, what I need is, to use ajax. Burhan Abdillah, 08 August 2018 14:25 - Reply Mas,,, pertanyaan saya hingga sekarang masih menjadi misteri, menggapa ya libbrary datatable tak berfungsi pagginantion nya ketika menampilkan data secara ajax, sedangkan menampilkan data menggunakan php biasa paggination nya jalan. The biggest problem is customization. We have perform live insert update delete mysql data by PHP PDO modal using Ajax Jquery and Datatables plugin. txt) or read online for free. I'm using datatables and I have to select the first row of table. As of jQuery 1. The DataTable tracks changes, allowing synchronization with the primary data source. On the very first load, after performing the first Search all is fine and everything works as intended. NET server controls is that they are lightweight and validation can be managed by client side. reload() passing a new set of parameters. Please see my xhtml file below:. This is a quick post about how to modify your JSON returned objects before sending them to the tables using DataTables. Server-side processing can be quite hard on your server, since it makes an Ajax call to the server for every draw request that is made. This video cover PHP PDO Crud system by using Ajax with JQuery Datatables and Bootstrap. When action is made (ex: next page) an ajax call with. Ajax data paging with dataTables. However when searching a second time, while all the code used to Search has been ran through again, the DataTable functionality seems to stop working. but I want to make use of the AJAX reload option on the datatable. jQuery AJAX with Page Method example in ASP. Clone via HTTPS Clone with Git or checkout with SVN using the repository's web address. Datatables是一款基于jQuery表格插件。目前,Datatables最新版本为1. The jsonp and jsonpCallback properties of the settings passed to $. This allows the page to continue working while waiting for the ajax response. net plugin while server paging is enabled in asp. net data (ajax. First it loads the data initially as soon as we open up the page. ajax method is the real deal for any (not only JSON related) web request. Here Mudassar Ahmed Khan has explained how to dynamically load images from database along with other information when is page scrolling down using DataList control in ASP. BeginForm helper portion as the class Ajax should be enough to understand that it will post the model back to controller action via Ajax, which means that whole will not refresh i. I perform the initial table load and get the highest unique ID. log(url) inside the else statement (which is the one that will fire almost 100% of the time for my scenario) and it logs the updated url with my parameter added properly. Data Table loses sort after ajax refresh. In this section I will demonstrate a basics which will help you to understand what steps to do for implementation of AJAX calls. I have a datatable that I populate once the user clicks a button, but I want them to be able to change a parameter and then have the data refresh based on the new id that I am setting. Jquery Datatable using AJAX. As a result, the elements retrieved by. Params, type: 'POST', Passing parameters as string in ajax call - jQuery Forum. This is a quick post about how to modify your JSON returned objects before sending them to the tables using DataTables. Create the table constraints. Every web developer uses a few jQuery components. Please […]. ajax() and reloading a dynamic table - jQuery Forum. The jQuery DataTables plugin is my default option whenever I need to display tabular data on a webpage. Hi! I have datatable that is server-side driven and use pager, filter, etc. Not sure I understand what you are trying to do but one option may be to set a flag in initComplete that allows ajax. reload(); It works fine, but now I'd like to send a few parameters in that request. NET Core MVC in a step by step way. Then I added a textbox and I want to change data as soon as user stars typing a word. I'm just figuring out how to use $. Note that if the table has already been initialised, this parameter will cause DataTables to simply return the object that has already been set up - it will not take account of any changes you might have made to the initialisation object passed to DataTables (setting this parameter to true is an acknowledgement that. Please see my xhtml file below:. Hi, I have two date fields in a form to filter the table query by dates and prevent it from bringing me thousands of records. It can even be given as a function to allow complete flexibility. The table itself is loaded via ajax so happily the solution to this is quite straight forward: table. Pass extra parameter(s) with datatable (server-side). I'm using Devise and in the where clause I want to add user_id: current_user. Server-Side Data in jQuery DataTables with ASP. How To Pass Parameters in URL for Javascript Refresh?. The libraries available for Editor have the ability to handle all four data request types, but the DataTables request is really independent of how Editor operates. I have very large amount data in c# which are take more time for proccessing and it was given exception also when max string length cross i want any to partition the data in small small peice and process and send it to ajax response using web api c# I have these code I want to split data into multiple part and send it one by one part on ajax response but display when all data recive by ajax. The server should return. 10 series of DataTables series and includes a number of fixes for issues found in the previous versions. One thing that's curiously difficult though, is how to refresh the contents in a simple way, so I for my own reference, and possibly for the benefit of others as well, here's a complete example of one way if doing this:. This function receives the selected categoryId, of the Category dropdownlist, to it’s parameter. net jQuery plugin with asp. GitHub Gist: instantly share code, notes, and snippets. See, we set ajax property with the URL to our action and also initialize columns property with title 's (the titles which are now shown in the table header line) and data 's (the keys that DataTables will be expecting to get the value for the current column). And I need to change data parameter in AJAX request and refresh the table. According to some usability studies "Load more" button is superior to pagination or infinite scrolling when it comes to displaying multiple records on one page. Description. The O/S before and after upgrade is Windows Server 2003 x64. 10 series of DataTables series and includes a number of fixes for issues found in the previous versions. In this article, we will work with these new set of parameters to implement the server side integration of Datatables v1. I'm using datatables and I have to select the first row of table. I have a javascript method which contains an ajax call: function MyFunction(urlTask, task) { ajax({ url: urlTask, data: task. NET Developer / Datatables warning : Requested unknown parameter Datatables warning : Requested unknown parameter RSS 0 replies. I've tried several different configurations but none have worked. This action will return employees data when the jQuery DataTables plug-in wants to refresh the content, therefore it should accept standard parameters (current page, number of items per page, etc. The AJAX call is a get request and I am setting the parameter in the header. I am using modals to add,delete,edit,update the row in datatables using jquery ajax. In this post we will see how to implement CRUD operations for a particular entity, as implementing the CRUD will full page reload is quite simple but beginners struggle most of the times implementing the CRUD via ajax so that page does not reload completely for better User Experience. DataTables debugger. reload() is not working for me. Hi, please help … ^_^ After inserting a new line in the database, i use the “Reload” function (ajax mode) to refresh the data of my dataTable, but the new line is not displayed. net plugin while server paging is enabled in asp. I need to pass additional parameter to client side from server and execute some action based on this, e. Tocacar Blocked Unblock Follow Following. js → How to update your data object for AJAX JSON data retrieval //To Reload The Ajax //See DataTables. Burhan Abdillah, 08 August 2018 14:25 - Reply Mas,,, pertanyaan saya hingga sekarang masih menjadi misteri, menggapa ya libbrary datatable tak berfungsi pagginantion nya ketika menampilkan data secara ajax, sedangkan menampilkan data menggunakan php biasa paggination nya jalan. I am refreshing table with command $('#table1'). DataTable(). Yes I did but that page covers working w/ DataTable not the Editor object created via editor = new $. According to some usability studies “Load more” button is superior to pagination or infinite scrolling when it comes to displaying multiple records on one page. I have a datatable that I populate once the user clicks a button, but I want them to be able to change a parameter and then have the data refresh based on the new id that I am setting. TextBox, DropDownList, etc. Download source code We will see one Example to bind one DropDownList using jQuery Ajax and C# WebMethod. Hello I am using Ajax Datatable example from the theme. Not sure I understand what you are trying to do but one option may be to set a flag in initComplete that allows ajax. Refresh() # where dataTable is a script parameter of type DataTable #. The problem is that, it doens't refresh the table from my partial view at all. Editor has a number of options which can be configured using the initialisation object that is passed into the $. Datatables — refresh table on ajax success – Technical Blog. Hi, I have a datatable, the first column show agencies assigned to this row, in another column I have a button that when clicked show a form to assign how to refresh a jquery Datatable after an operation ? - jQuery Forum. How to use the DataTables debugger. jQuery DataTables: How to Reload a Table’s Data CodeUnit 24 MAR 2010 Since my discovery of the awesome jQuery DataTables plug-in I haven’t stopped using it in my projects at it is by far the simplest and cleanest way of delivering feature-rich tables to a user. ) that define the current view state of the table. For this article I will make use of an ASP. It's a tiny wrapper that doesn't include anything, not even the datatables. Does anyone know how to dynamically add a parameter to the ajax call before table. reload() is not working Posted 4 years ago by jben0324. Common options. Datatables. With DataTables, you can easily build powerful data overviews of data coming from both SharePoint and external APIs. Partial views in ASP. The data object stored is the resulting object once the ajax. Hi Following advise from here I'm attempting to build my table using Datatables In the code bellow I get TypeError: f is undefined datatables. DataTables Options snapshot. In the first grid from the demo the. Praise and Worship Chorus Lyrics. Send parameters via datatable ajax call. The main challenge that I have found while binding dynamic json result to jquery datatable is the need to create table header using script. net jQuery plugin with server side paging with MVC3 and asp. It can also be used to inform you when updates are available to the DataTables software you are using and run tests to find and suggest corrections for common configuration issues. This will now pass all of the AJAX parameters into the AJAX request as query string parameters, so now the page number (and other variables) will be set automatically. introduced a set of predefined classes supporting a datatable output 1 in the result format "Table" Outputs the results in a table (default for queries with printout statements). Thankfully one of the DataTables forum guys came up with a handy bit of extension code which introduces a new function called fnStandingRedraw() which extends the datatables API and allows you to fresh the datatable without losing your current view. /// public class DTParameters {/// < summary > /// Draw counter. This software was originally released on 2nd April, 2015. Once table is loaded, it seems that the reload/destroy methods aren’t reloading data with a new ajax call, but rather just refreshing the existing table without making a second call. The DataTable isn't responsible for tracking changes in order to allow synchronization with the secondary data source. I need to pass additional parameter to client side from server and execute some action based on this, e. URL parameters. net data (ajax. This software was originally released on 2nd April, 2015. This package is created to handle server-side works of DataTables jQuery Plugin via AJAX option by using Eloquent ORM, Fluent Query Builder or Collection. Update UsersDataTable class and set the columns and parameters needed to render our dataTable. jQuery DataTable gives ajax interface to us for custom ajax operations. reload() - e. For this demo, I have generated a sample dataset of 10,000 records. NET, jQuery, MVC, ajax. DataTables CDN files for DataTables 1. My goal is to reload the table with fresh data on changing a select option, but using that option value as a parameter in my ajax call. 10 series of DataTables series and includes a number of fixes for issues found in the previous versions. ajax(url[, options]) $. DataTables is a flexible tool which adds up advanced interaction controls to any HTML table and let's sees how easy it is to display json file in html table with few lines of code. Monitor the AJAX data source every 5 seconds (default), comparing the current data structure and the data structure just pulled. Responsive means a layout which is fit on on each resolution devices like mobile/tablet and desktop which has different resolution screen. This example will read data from Customer table of Northwind database. The DataTable tracks changes, allowing synchronization with the primary data source. Also, please don't forget to copy EmployeeViewModel from Part 20 of this tutorial series. Burhan Abdillah, 08 August 2018 14:25 - Reply Mas,,, pertanyaan saya hingga sekarang masih menjadi misteri, menggapa ya libbrary datatable tak berfungsi pagginantion nya ketika menampilkan data secara ajax, sedangkan menampilkan data menggunakan php biasa paggination nya jalan. Thankfully one of the DataTables forum guys came up with a handy bit of extension code which introduces a new function called fnStandingRedraw() which extends the datatables API and allows you to fresh the datatable without losing your current view. When the user clicks the element with class trigger and the Ajax request completes, the log message is displayed. An example initialisation using the ajax and table options:. 07/23/2014; 2 minutes to read +2; In this article. It's a very small table (~20 rows max), so for speed I'm just going with a reload of the whole table. DataTables de datos es un plug-in para la biblioteca jQuery Javascript. ajax() can be used to specify, respectively, the name of the query string parameter and the name of the JSONP callback function. id I put the line puts current_user in my datatable file into get_raw_record f. Recently, i came across a Reqirement where i need to populate datatable(i used jQuery-DataTable) by passing JSON array as input parameter. Hi, My suggestion would be to use a jQuery Ajax call and use the data parameter to fetch the. those that don't directly lend themselves to display in a table). bRetrieve Show details: Retrieve the DataTables object for the given selector. BeginForm helper portion as the class Ajax should be enough to understand that it will post the model back to controller action via Ajax, which means that whole will not refresh i. DataTables Plugin - Live Ajax. Refresh() # where dataTable is a script parameter of type DataTable #. Sorting table with columns with data-sort attribute after reorder causes "Requested reorder causes "Requested unknown parameter ajax request to refresh the. $ laravel new datatables If you're using homestead, add datatables. The reload() method does the same as the reload button in your browser. I thought it was a problem of the IE cache, so I added this in my script:. Or it can work on data coming from an Ajax. /// This is used by DataTables to ensure that the Ajax returns from server-side processing requests are drawn in sequence by DataTables (Ajax requests are asynchronous and thus can return out of sequence). This jQuery XHR object, or "jqXHR," returned by $. NET MVC 5 application. My goal is to reload the table with fresh data on changing a select option, but using that option value as a parameter in my ajax call. js → How to update your data object for AJAX JSON data retrieval //To Reload The Ajax //See DataTables. The table itself is loaded via ajax so happily the solution to this is quite straight forward: table. Join a community of over 2. jigar311982 Posts: 37 Questions: You need to set those parameters when you initialise the DataTable the first time. ajax() will automatically append a query string parameter of (by default) callback=? to the URL. Add(dt2) #dt2 a DataTable string parameter. 07/23/2014; 2 minutes to read +2; In this article. Hi, please help … ^_^ After inserting a new line in the database, i use the "Reload" function (ajax mode) to refresh the data of my dataTable, but the new line is not displayed. NET Server controls and also used Bootstrap Template for better view. For details on the settings available for $. reload() -he intentado cambiar de dataTable a DataTable segun la documentacion Nada ha funcionado. jQuery: The Write Less, Do More, JavaScript Library. ajaxError() method, must be attached to document. Angular datatables provides default options. 如果一个datatable生成的表格是ajax请求的数据的,我们只需要xxx. DataTable AJAX Pagination jQuery plugin modifications to change all loading parameters set ! The best jQuery AJAX Pagination plugin——DataTable jQuery. jQuery DataTables 1. Access you new site to make sure you. Ajax Datatables basic datatable samples. I want to refresh my datatable whenever updates (update/delete/insert) happens in. Initially, when the page loaded Datatables is generated with complete posts and when we pass from and to dates as custom ajax request in Datatables we get a filtered result. reduce the number of notifications displayed in labels on the page, when the notifications were deleted via ajax. This article shows how you can easily reload table content in ASP. I've tried this and it isn't quite working. reload() the table still showing the old data. 10 series of DataTables series and includes a number of fixes for issues found in the previous versions. They allow you to update only a part of the DOM without having to perform a full page refresh or a postback. Mauro Cazabonnet used Ask the Experts. I am trying to reload the table after making changes, and those changes I want to pass them as parameters in POST via AJAX. function datatable_parameters_ajax(objectTable, url, parameters, parametersInput, parametersBoth, language, rowPerPage, recreate). How to Convert JSON Data to HTML Table using jQuery DataTables Plug-in. /// public class DTParameters {/// < summary > /// Draw counter. In this example I am using a flat array for my JSON objects. How to Refresh or Reload Data using IronPython script in TIBCO Spotfire® dataTable. html() prior to scripts being removed. After that, when I select an item in my DropDownList, I need to filter the values. Datatables. If you have ever wanted to send a form without reloading. This sample demonstrates how to create a DataTable manually with specific schema definitions: Create multiple DataTables and define the initial columns. reload() passing a new set of parameters. This section details all of these options, with code examples of how each option can be used. This will now pass all of the AJAX parameters into the AJAX request as query string parameters, so now the page number (and other variables) will be set automatically. This method provides exactly that ability, making an Ajax request to the already defined URL (use ajax. net client table-rendering plugin. net web form. I need to pass extra parameter to the Controller and have to use AJAX call. And the main option is Ajax which we are going to use for calling an Action Method for getting data to bind DataTables Grid the data is in Json format. NET Core MVC in a step by step way. Net Community by providing forums (question-answer) site where people can help each other. So I figured I'd build a datatable and try passing that along as the cursor parameter. The update is working but the updated information. Refresh() # where dataTable is a script parameter of type DataTable #. NET AJAX Chart (HTML5). NET, jQuery, webservices, ajax. So, what I need is, to use ajax. This function receives the selected categoryId, of the Category dropdownlist, to it’s parameter. NET 17 December 2014 Comments Posted in ASP. New here? Start with our free trials. Add(dt1) #dt1 a DataTable string parameter Tbls. The easy way is to use ajax. Net, AJAX, jQuery. The passed in parameter is the data set that has been constructed by DataTables, and you can add to this or modify it as you require. I'm using Devise and in the where clause I want to add user_id: current_user. Refresh() # where dataTable is a script parameter of type DataTable #. I'm able to reload the table either via dataTable. How to refresh dataTables using ajax? ajax. 07/23/2014; 2 minutes to read +2; In this article. Refresh / Reload DataTables #Method 1 # Refresh one table Tbls. Visit Laravel's Documentation for more details about creating a new project then onfigure your site. The problem is that in all the browsers when I insert a new row using this functions it works fine, and after the table automaticaly reload his correct content from the db, but in Internet explorer after the ajax. Employees AJAX handler that returns the employees when jQuery DataTables sends the AJAX request. Lyrics to over 20,000 hymns now available. I am refreshing table with command $('#table1'). I added a console. Jquery Datatable Ajax Example. I have a table that is dynamically $. Jquery Datatables change default ajax server parameters Is there a way to change what default parameters Datatables jquery library sends via ajax to server ? Because right now it sends this:. Editor has a number of options which can be configured using the initialisation object that is passed into the $. Also note that I don't have to make separate jQuery AJAX Method call here, as ajax property of the DataTables is doing that work for me. We are built this project on ASP. reload() is working, however, I cannot get the start and end date values added to the ajax form post. Here Mudassar Ahmed Khan has explained with an example, how to send (pass) parameters to Web Method in jQuery AJAX POST call in ASP. After that, when I select an item in my DropDownList, I need to filter the values. The main challenge that I have found while binding dynamic json result to jquery datatable is the need to create table header using script. STEP-BY-STEP! What is AJAX? AJAX (Asynchronous Javascript And XML) is a method or technique of web-based programming to create interactive web application. Introduction. pdf), Text File (. net core library. Ajax data paging with dataTables. When I click on this button, I call backen bean via ajax, I change data in model and I do update on panel with my datatable the whole datatable is updated. I have made it a WebMethod because it will be called from the jQuery AJAX code. Net WebMethod and the data from the form fields i. reload(); It works fine, but now I'd like to send a few parameters in that request. As such, each draw of the table will result in a new Ajax request being made to get _table. I have a Datatable that displays the contents of log messages that are pushed into a DB table. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: