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Posted by / 14-Sep-2017 16:11

Gridview not updating on postback

NET 2.0 Professional section of the Wrox Programmer to Programmer discussions.I have a select statement set in an Sql Data Source that returns a result table like this: Major Stone ID | Band Style ID | Type ID | Cut ID | Weight | Color | Clarity | Qty | Unit Price | Stone Name | Cut Name Stone Name and Cut Name come from joins with other tables. Updating, the new values collection also does not have the updated values. To simplify the problem, if I set up my Sql Data Source the same way, then drop a datagrid on the form and autogenerate the columns and edit buttons, I still get the problem.My asynchronous trigger is a timer that runs every 3 seconds. This is a community of tens of thousands of software programmers and website developers including Wrox book authors and readers. By joining today you can post your own programming questions, respond to other developers questions, and eliminate the ads that are displayed to guests. I'm trying to do some very simple databinding with a Grid View but can't get it to update.In fact, as we saw starting with the Overview of Inserting, Updating, and Deleting Data tutorial, editing and deleting is so common that the Grid View, Details View, and Form View controls can support such functionality without the need for writing a single line of code.In addition to Edit and Delete buttons, the Grid View, Details View, and Form View controls can also include Buttons, Link Buttons, or Image Buttons that, when clicked, perform some custom server-side logic.I don't know why yet, or how to bind the page..if I remove Data Bind from Page_Load, updating is successful. This means fresh data is retrieved from the database as soon as the page loads. Is Post Back) This way, Data Bind is only called when the page initially loads and leaves your edits alone on postback. Get the data from your database using a sqldatareader and store it in a custom collection by defining your own custom object.This in turn means any customizations to the data (e.g. To avoid that problem, wrap the call to Data Bind in a check for Posat Back. Hope this helps, Imar --------------------------------------- Imar Spaanjaars Then bind to the collection using the pageload event and when page.ispostback = false.

The problem is, that when I press update with a breakpoint on Sql Data Source. This prevents the grid from updating for some reason. Hi there, When you call Data Bind in Page_Load, you tell your controls to data bind. NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004My advice would be to steer clear of the sqldatasource and use a 3-tiered approach to retrieving, displaying and collecting data.

Typically this involved adding a Button, Link Button, or Image Button Web control with each record displayed in the report that, when clicked, causes a postback and invokes some server-side code.

Editing and deleting the data on a record-by-record basis is the most common example.

Add a javascript function which will be invoked from the dropdownlist control, in this case this function is assigned to the Command property of the dropdownlist in code behind: the function Translate shown above performs the call and get the results in the specified page (in this case "Get Login Translations.aspx") when the request is completed and the request.onreadystatechange is set to the function Translate Labels this function will be executed.

on this way the postback is not executed as before in the event on Selected Index Changed of the dropdownlist control.

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the Translate Labels function would look something like : the request.response XML contains the XML built in the page Get Login and the structure of this XML is defined there.

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