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.
In my case this was happening because I was binding to a List of custom objects.
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.
Obviously the simplest method is to use Data Key Names on the Grid View and then you should have the data in your Grid View Update Event Args as part of e. (In the following example, I cast to a Check Box as I know I have a checkbox at the col Index You Are Interested In - you should cast to whatever control you have in that column).
- 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.
Editing the Grid View control can be an incredibly easy feature to add for certain database tables, especially those who have no foreign key associated and can easily be edited through the use of a standard Text Box web control as shown in the figure below: 1.