dynamically set value of DataKeyNames in gridview

Question

How i could set the value of DataKeyNames of gridview in C# code?

since my gridview is generated dynamically, i need to set it from .cs file

Answer 1

Write code in cs file like

GridView d;

protected void Page_Load(object sender, EventArgs e)

{
    d = new GridView();

    d.DataKeyNames = new string[] { "Column1", "Column2" };
    form1.Controls.Add(d);
}

Answer 2

You can set it like any other property of the grid:

myGrid.DataKeyNames = new string[] {"Id", "Name"};

This corresponds to the following declarative code:

<asp:GridView id="myGrid" DataKeyNames="Id,Name" ... />

Answer 3

Something like this:

myGridView.DataKeyNames =new string[]{"PrimaryKeyId"}