How to add Gridview column in programmatically

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ASP.NET

Dear Friends,

original Code- i.e datagrid

I'm replacing datagrid into gridview.
Datagrid Code
DataGridAddColumn("Incident Number", "INCIDENT_NUMBER", DG);
this.AddColumnDataBase(User_ID, "Incident Number", "INCIDENT_NUMBER", 0);
userDataFields.Add("INCIDENT_NUMBER");

I want to convert this code to gridview

Can any one help me.

Thanks in Advance
Regards,
Prabhu