Asp net c gridview onrowupdating
Today was spent mostly tackling the Grid View’s Update/Edit functionality, and I got incredibly frustrated, at first. So be sure to rebind your Grid View at the end of your event handler. I’ve got a pretty good handle on it as I’ve been doing it for several years, and can help with a lot, but I definitely don’t claim to know everything.
Basically, I was trying to convert an existing data-display-only Grid View (ie, no special functions) into one where I can update a field, namely the inventory for displayed products. New Edit Index 'set to selected row Bind Grid View() ' your own subroutine that you use to bind your datagrid End Sub Protected Sub Grid View1_Row Canceling Edit(By Val sender As System. Thus, in order to switch it into Edit Mode, in each of your event handles (Row Editing, Row Updating, and Row Canceling Edit) you must do two things: Protected Sub Grid View1_Row Editing(By Val sender As System. Edit Index = -1 'set to no selection Bind Grid View() End Sub One issue I ran into while attempting to figure this all out was if I didn’t rebind my Grid View at the end of each event, I was required to click twice to get it to select the correct row, and if I clicked around, it would always be a row behind. This blog is for nothing else than to try and help me help you and help you help me and us help everyone else try to fix anything and everything we can’t figure out with this language. Hope this saves someone a full day of research (and possibly some hair)! To enhance this process, be sure to include your Grid View in an AJAX Update Panel.After working with Data Grids so efficiently, I was scared that Grid Views were going to be a million times more complex.
I suppose my eyes got big when I saw all the new properties and methods, and wanted to try them all out. Most articles I found were for hardcoded datasources (especially on MSDN, ugh) and didn’t really help me much, so this post will be referring to Grid Views with dynamically bound datasources.
First, create a Grid View with three bound columns and an Update/Edit/Cancel (Command Field) column: Nothing in there should be shocking to anyone: all your events are handled, you have a Hyper Link Field that uses the Data Navigate URLFields property to insert a Product ID, and you have set your Data Key Names property to your hidden field which holds your Product ID.
Because we are not using the Grid View’s built-in data model and are binding dynamically, the Grid View will not switch into and out of Edit Mode automatically.
Everything should be sorted out when the “Update” link is pressed.
Finally, to pull your hidden value that you’ve dubbed a Data Key in the Grid View’s subroutine.
Remember that my first column was a Hyper Link Field, so in order to pull that value, I must cast that column as a Hyper Link.