Gridview rowupdating code behind

Posted by / 25-Mar-2018 08:03

Gridview rowupdating code behind

w=607" src="https://taditdash.files.wordpress.com/2014/03/first-row-in-edit-mode.jpg? w=800" alt="First Row in Edit Mode" class="size-full wp-image-195" srcset="https://taditdash.files.wordpress.com/2014/03/607w, https://taditdash.files.wordpress.com/2014/03/first-row-in-edit-mode.jpg? w=800" src="https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=800&h=246" alt="First Row Cancel Button Source HTML" width="800" height="246" class="size-full wp-image-196" srcset="https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg?I am using a SQLData Source to populate my gridview in ASP. When I hit Edit, the textboxes appear and I am able to edit my values. I am using a SQLData Source to populate my gridview in ASP. When I hit Edit, the textboxes appear and I am able to edit my values. 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.This means that when the user does an update, the data from that update is lost.You should create your data source once (on the user's first visit) and store it into Session for later use, and only bind the Grid View to the data source when it is necessary to do so.The problem is, I’d very much like to do so, if ASP. But I can’t set a Data Source property or anything on the Sql Data Source!!! I probably have to read the cells on the Grid View of the selected row, find the controls, get the values from those and insert those into my Data Set.

w=694" src="https://taditdash.files.wordpress.com/2014/03/demo-cancel-gridview-edit-on-escape-keypress.gif? w=800" alt="[DEMO] Cancel Grid View Edit on Escape Key Press" class="size-full wp-image-202" /First Row in Edit Mode " data-medium-file="https://taditdash.files.wordpress.com/2014/03/first-row-in-edit-mode.jpg? w=300" data-large-file="https://taditdash.files.wordpress.com/2014/03/first-row-in-edit-mode.jpg? w=150 150w, https://taditdash.files.wordpress.com/2014/03/first-row-in-edit-mode.jpg? w=300 300w" sizes="(max-width: 607px) 100vw, 607px" /First Row Cancel Button Source HTML " data-medium-file="https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=300" data-large-file="https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=800&h=246 800w, https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=150&h=46 150w, https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=300&h=92 300w, https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=768&h=237 768w, https://taditdash.files.wordpress.com/2014/03/first-row-cancel-button-source-html.jpg? w=1024&h=315 1024w, https://taditdash.files.wordpress.com/2014/03/1081w" sizes="(max-width: 800px) 100vw, 800px" / I am not writing the Update Event code here as it is not important in our discussion.

But for this demo, I’ll show you the simple version, that also doesn’t work 🙂Let’s bind the data to our Grid View and have it autogenerate our columns, as well as an edit button.

When we edit a row in our Grid View and press the “Update” button, at some time it’s received in the Row Updating method.

In this example, I am going to retrieve values from categories table of Northwind database. Drag a Grid View into the Web Form and assign Data Key Names property with the primary key column i.e. In the gdview_Row Editing and gdview_Row Deleting event, we have used the below code to retrieve categoryid from datakey of Grid View, int catid = int.

For a while now I’m trying to figure out why my method, triggered by the Grid View.

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A datakey represents the primary key field or field of a record that can uniquely identify it in a data-bound control. Row Index represents the index of the particular row.

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