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On the first step of the wizard click on "New Connection" button to open a dialog as shown in Figure 1.Enter the database details as per your setup and click on OK.
We need to convert these Bound Fields to Template Fields.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".However, most of the real world cases call for validating the data being edited or deleted. Drag and drop an SQL Data Source control on the web form.There can be several approaches taken for validating data. For our example we are going to use Customers table of Northwind database. Open its smart tag and choose "Configure Data Source" option to start Configure Data Source wizard.You can sort the data in ascending or descending order based on the contents of the specified column.
Also you can see the Data Grid View sorting when user clicks on the column header.
Here, we set the Data Source of the Grid View to Sql Data Source1. We also enable paging, sorting and editing features of the Grid View.
By default when the Grid View controls goes in edit mode, it displays Text Boxes for entering values.
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.
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.
Note that by default all validation controls validate on the client side.