Gridview Edit show radiobutton selected from database.

Accepted answer

in your Gridview under columns use like below

"RadioButton1" runat="server" Text='Male' Checked='<%# Eval("Gender").ToString() == "Male" ? true : false %>' />
"RadioButton2" runat="server" Text='Female' Checked='<%# Eval("Gender").ToString() == "Female" ? true : false %>' />

how to use Edit item template?

use EditItemTemplate and under that follow below code

"RadioButton1" runat="server" Text='Male' Checked='<%# Eval("Gender").ToString() == "Male" ? true : false %>' />
"RadioButton2" runat="server" Text='Female' Checked='<%# Eval("Gender").ToString() == "Female" ? true : false %>' />