The simple way is -
DataTable dtable = new DataTable();
dtable.Columns.Add(new DataColumn("Column 1"));
dtable.Columns.Add(new DataColumn("Column 2"));
object[] RowValues = { "", "" };
RowValues[0] = "your value 1";
RowValues[1] = "your value 2";
DataRow dRow;
dRow = dtable.Rows.Add(RowValues);
dtable.AcceptChanges();
grv.datasource=dbtable;
grv.databind();
Do necessory changes and dont forget to
dtable.AcceptChanges();<br/>grv.datasource=dbtable;<br/><br />
grv.databind();<br/>
this will work for 1000's of times....