How to set Data key value in GridView?

Using DataKeyNames and DataKeys is fairly simple, you just need to set the name of the Column in DataKeyNames property as shown below. Here CustomerId is the name of the Column. And then in code access it using the RowIndex of the GridView Row to get the value of the Column for that particular Row. int id = Convert.

How to get Data key value in GridView on button click?

protected void btnRemoveclicked(object sender, EventArgs e)
{
Button button1= (Button)sender;
GridViewRow row = (GridViewRow)button1.Parent.Parent;
labeltext= ((Label)row.FindControl(“lblid”) as Label).Text;
string string datakey = grdtest.DataKeys[row.RowIndex].Value.ToString();
}

What is the default value of selecteddatakey in a GridView?

The default is null, which indicates that no row is currently selected. No data keys are specified in the DataKeyNames property. The following example demonstrates how to use the SelectedDataKey property to determine the data key value of the selected row in a GridView control.

How to specify two key fields in a GridView element in markup?

In the example, the DataKeyNames attribute of the GridView element in markup specifies two key fields by using a comma to separate the names. To run this example, create a Web site that has the following:

How do I get the data key of a selected row?

If you need to retrieve the data key value when a row is selected, use the SelectedDataKey property. When the DataKeyNames property is set, the GridView control automatically populates its DataKeys collection with the values from the specified field or fields, which provides a convenient way to access the primary keys of each row.

How do I enable view-state encryption in GridView control?

The GridView control stores these key field values in the control state. If these values contain sensitive information, it is strongly recommended that you enable view-state encryption by setting the ViewStateEncryptionMode property to ViewStateEncryptionMode.Always.

How to set Data key value in GridView?