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Gridview rowupdating newvalues oldvalues

If you reset the Data Source at this stage, your values for updating will be lost. I actually don't know how to write the Row Updating function, I just found it from the internet, and so of course it's not working. Please give some references and/or details of how to. Ok what's happening is that you are binding the data source for the Grid View every time a postback occurs in the Page_Load method.

Count ----------- The most common problem for losing new data entered while updating a Grid View or Data Grid is that you are resetting the Data Source for the Grid View or Data Grid in the Page_Load method. I actually don't know how to write the Row Updating function, I just found it from the internet, and so of course it's not working.

There are multiple ways in which one can get the data from the current row that is being edited in a Grid View. Using "Extract Values From Cell": This is an easy way to get all the values from the current row.

In my case this was happening because I was binding to a List of custom objects.

First, I load up some data: After that, I’m doing some work to make my Grid View look beautifull, adding all columns by hand.

the good old problem of getting the data from the row that is being currently edited within a Grid View. Accessing the "Controls": This method gets you access to the control in the Grid View, which might be useful based on what you are doing.Note A common mistake that a lot of people do is that they perform a databind each and every-time the Page_Load method is called.This will lead to problems like "Grid View does not show updated values", "Grid View looses values changed by user". In your Page_load, this is typically only inside a block where you check to make sure that Page_Load is not being called during a post-back call.By default when the Grid View controls goes in edit mode, it displays Text Boxes for entering values.You can not attach validation controls directly to these Text Boxes.There can be several approaches taken for validating data. For our example we are going to use Customers table of Northwind database. Open its smart tag and choose "Configure Data Source" option to start Configure Data Source wizard.On the first step of the wizard click on "New Connection" button to open a dialog as shown in Figure 1.Debugger Inside Grid View Row Updating Event " data-medium-file="https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=300" data-large-file="https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=800&h=359 800w, https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=150&h=67 150w, https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=300&h=135 300w, https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=768&h=345 768w, https://taditdash.files.wordpress.com/2014/06/864w" sizes="(max-width: 800px) 100vw, 800px" /Grid View on Browser " data-medium-file="https://taditdash.files.wordpress.com/2014/06/gridview-on-browser.png? w=230" data-large-file="https://taditdash.files.wordpress.com/2014/06/gridview-on-browser.png? w=150 150w" sizes="(max-width: 230px) 100vw, 230px" /Grid View Cell Showing Updated Value " data-medium-file="https://taditdash.files.wordpress.com/2014/06/gridview-cell-showing-updated-value.png? w=300" data-large-file="https://taditdash.files.wordpress.com/2014/06/gridview-cell-showing-updated-value.png? w=150 150w, https://taditdash.files.wordpress.com/2014/06/gridview-cell-showing-updated-value.png? w=300 300w" sizes="(max-width: 416px) 100vw, 416px" /Event. w=800" src="https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=800&h=359" alt="Debugger Inside Grid View Row Updating Event" width="800" height="359" class="size-full wp-image-328" srcset="https://taditdash.files.wordpress.com/2014/06/debugger-inside-gridview-rowupdating-event.png? w=230" src="https://taditdash.files.wordpress.com/2014/06/gridview-on-browser.png? w=800" alt="Grid View on Browser" class="size-full wp-image-335" srcset="https://taditdash.files.wordpress.com/2014/06/230w, https://taditdash.files.wordpress.com/2014/06/gridview-on-browser.png? w=416" src="https://taditdash.files.wordpress.com/2014/06/gridview-cell-showing-updated-value.png? w=800" alt="Grid View Cell Showing Updated Value" class="size-full wp-image-331" srcset="https://taditdash.files.wordpress.com/2014/06/416w, https://taditdash.files.wordpress.com/2014/06/gridview-cell-showing-updated-value.png?Click on the "Advanced" button and check the "Generate INSERT, UPDATE and DELETE statements" checkbox (Figure 3). Now that you have configured the SQL Data Source control let's bind it with a Grid View control. Open its smart tag and configure it as shown in Figure 4.Here, we set the Data Source of the Grid View to Sql Data Source1. We also enable paging, sorting and editing features of the Grid View.


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