A friend asked me to help him out on this and frankly it has me completely stumped as well. I have a Grid View control and use old style manual binding with a Data Source property and invoke the Data Bind() method. According to your project, Edit Form template controls are not bound to Data Source. (2) How do you add validation to this pop Up Edit Form approach? Please take a look at the Grid Editing - Validation online demo, illustrating the manual validation. Disclaimer: The information provided on Dev and its affiliated web properties is provided "as is" without warranty of any kind. If Edit Form template controls are not bound to Data Source, this is a normal behavior, because e. Old Values properties contain values that are connected to Data Source field names. I also recommend that you review the Data-Binding Expressions Overview that will help you better understand how to deal with Data-Binding Expressions.Thanks, Jenny -Why is it not possible to use the Enable Callback = false in Pop Up Edit Form mode? The cause of the problem is that grid gets its Post Data after the Page_Init event but before the Page_Load event. Data Bind method is called in the Page_Load event handler, it disturbs values returned from Post Data. We recommend binding the grid in the Page_Init event handler. - When the user opens 2 tabs for the same page, the session data is not specific for those tabs and state saved in the session variable can conflict between pages (removed on tab1 but still available on tab2). Viewstate is page-specific and only lives within lifecycle of let's still use session data as you specify, I'll try to solve that later.== I have 2 questions using your example:1) The e. The appropriate solution is storing the Data Source in the Session. Load Post Data to the required controls explicitly via the Dev Express. How do I grab the new values from these textboxes and proceed further?
We appreciate your patience while we work to find a solution to your inquiry. If you need any further help on this subject, please feel free to reactivate this ticket. This can become a storage problem when having a lot of simultanous users on the server. Load Post Data Recursive for it (as you specified in your answer). If equal, then no db update is needed (values are not dirty).2) How do you add validation to this pop Up Edit Form approach? I can get the new Values from the editformtemplatecontrol and validate it's value. I do not need to load Post Data to the required controls explicitly via the Dev Express.
- How can I my attached example working with a custom edit template using this Enable Callback = false with Pop Up Edit Form mode and edit-visible-only columns ? Get Row Values method and set initial value template controls.
To get the desired result, perform the following steps: 1) Handle the ASPx Grid View.
All samples of course assume you’re doing everything in your page, but I have to do everything in my code-behind, because on forehand I don’t know what I’ll be binding to my Grid View.
Check out what I’m trying to do, maybe you can help?