Next Select your database and Set “Save Entity connection string in Web.config as” option true giving name Sample Entities.
Select Both Category and Customer tables Give Model Namespace and click on Finish. NET Gridview Footer row for inserting record, inbuilt way to edit and delete records.
The Grid View does know the events that should be used to implement them, so the exceptions shown above are thrown when you try to perform one of these operations, but you have implemented the appropriate event handler.
The example shown here is for a Grid View, but the same types of event handlers must be implemented in roughly the same way for other data controls including the Form View, Details View, and List View. This is the final Grid View markup, so you can see the event handlers we’re going to implement.
The Grid View 'Grid View1' fired event Sorting which wasn't handled.
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If we could have accessed the Bind method ,that implicitly performs two-way binding, in the code-behind then we could have just override the Row Databound event and assigned the value to the gridview's checkbox control using the Bind method.
But unfortunately the Bind is not available in ASP. We could still achieve this in two simple and easy steps. Wrap the Eval(fieldname) HTML code in a function eg: Checkvalue that checks the datafield value, performs transformations to True OR False values and assigns to Chekced property. Override the Row Updating event of gridview and update only the Checked property's value since the SQLData Source that is bound to gridview will take care of remaining fields to update.
When I click save instead of saving to second page the first page row gets modified.
Example if i click edit in 2nd row of 2nd page and after i click update, the 3nd row of 1st page is modified with the new value and not the 2nd row of 2nd page.