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Visual Studio allows developers to quickly put together a Web Forms page simply using drag and drop options from the Visual Studio editor.
Binding form controls is mostly a simple matter of attaching a Data Source and setting your controls to reference the correct field in the Data Source.
Binding a Grid View control can sometimes get tricky when using the Visual Studio editor, especially when working with Drop Down List controls within the grid.
Today I was working on getting a row of the Grid View control to save the contents of a Drop Down List, and needed to add some custom code to set values passed to the Sql Data Source control on the update event.
I found that simple data binding of my Drop Down List in my Grid View to my Sql Data Source was not going to be enough.
I would need to set values passed to the Sql Data Source control on the update event, and as part of this I would need to reference the controls contained in the row being updated.
The visitors to a web site can typically be divided into two groups: the users and the administrators.
In data driven web sites, users are normally allowed to view data and administrators are allowed to add, edit or delete data.
The Data Grid View control in C# provides automatic sorting, so that you can manually sort any column in the datagridview control.
When I hit Update, the changes are not saved, and there is no error message. When I hit Update, the changes are not saved, and there is no error message. Then the page posts back, the text boxes go back to being labels and the new values are lost, and the Row Updating code never fires. Yes, I did put the breakpoint at the Row Updating line (and not in the function).
I put a breakpoint on the Row Updating event handler and found that the event is not fired. I put a breakpoint on the Row Updating event handler and found that the event is not fired. In the Row Editing function, the edit textboxes appear and I can get the "old" values Then the page renders, I edit the textboxes and hit Update.
Then within the new method one can access controls within the Grid View row being edited by referencing the Row Index attribute of the Grid View’s Rows collection. Find Control("ddl Service Level List"), Drop Down List) Dim lbl Support Date As Label = CType(GVSupport Info.
So for example to reference a Drop Down List within the Grid View Row, use the syntax: Basically this is quite straightforward once one knows the syntax for referencing a control within a Grid View Row. Grid View Update Event Args) Dim lbl Service Level As Drop Down List = CType(GVSupport Info.In this tutorial I will show you how you can create an editable Grid View control for administrators to modify database records directly into the Grid View control.