Gridview rowupdating event c
Next, drag and drop a Required Field Validation control below the Text Box.
Set the Control To Validate property of Required Field Validator control to Text Box1 (i.e. Also, set its Error Message property to "Please enter company name".
Note that by default all validation controls validate on the client side.
By default when the Grid View controls goes in edit mode, it displays Text Boxes for entering values.
You can not attach validation controls directly to these Text Boxes.
Here, our validation criteria is that the entered name must not contain title of courtesy (Mr./Mrs./Ms.). That is when you can handle certain events of Grid View control.
Inside the event handler we added two validation conditions: We used the New Values collection to check the entered country.If the country is null then we set Cancel property of Grid View Update Event Args class to true.
Double click on the Custom Validator control to go into the Server Validate event handler and write the following code in it. However, at times you many need more control and flexibility than that is provided by validation controls.Right click on the Grid View and select "End template editing" Run the web form.Click on the Edit button of the Grid View so that it goes into the edit mode.Out of these events Row Updating and Row Deleting are possibly the most common ones.These events are raised before updating and deleting the record respectively.This will display the template designer for the column as shown in Figure 6.