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Find Control("lbl Contactidno")); String Contact ID=lbl. Text; Drop Down List ddl = ((Drop Down List)gv Contact Info. You should use A debugger can not only help you check if you are getting the correct value, it can also allow to walk through the steps.
Also, it is not a good idea to build sql query using string.
I thought that might be the case when I noticed (breakpoints and tracing) that the Grid View did not yet have an edit row set.
I'm giving examples, not typing up your whole app for you.
event is raised when a row's Update button is clicked, but before the Grid View control updates the row.
This enables you to provide an event-handling method that performs a custom routine, such as canceling the update operation, whenever this event occurs.
If this post contains any code, I may or may not have tested it.
ID); This results in a Null reference exception (it hasnt been found) Please any ideas?
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. Place Link Button Edit in Item Template and Link Button Update and Cancel in Edit Tamplate of Gridview's column. Fire Grid View's Row Editing event for Link Button Edit. Fire Grid View's Row Updating event for Link Button Update. Fire Grid View's Row Canceling Edit event for Link Button Cancel. Set Command Name propery of Link Buttons according to their respective event. Set Grid View's Data Key Names Property to record ID (ID=Primary/Unique key of student table) 7. I have a gridview and a dropdown that appears in my custom edit row ( i added it to the edititemtemplate). The dropdown is in the first columnd and the below is located within : public void rowedit(Object sender, Grid View Edit Event Args e) Drop Down List s = (Drop Down List)Grid View1. I'm giving examples, not typing up your whole app for you. If it doesn't have basic error checking in it, such as object detection or checking if objects are null before using them, put that in there. In this article we create a Gridview from database and add some additional operations such a add, edit and delete data in the Grid View control. In the previous article , we learned how to create a simple Grid View at runtime .