call function behind the image button in GridView

Question

i am having two buttons in the gridview but they dont return anything event after using the \"CommandName\" in which i write the function name but it does not do anything.

Answer 1

and here is the code behind:

protected void gvProduct_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        GridViewRow Row = (GridViewRow)((Control)e.CommandSource).NamingContainer;
        int rowID = Convert.ToInt32(gvProduct.DataKeys[Row.RowIndex].Value);

        if (e.CommandName == "EditCommand")
        {
            EditFunction(rowID);
        }
        else
            if (e.CommandName == "DeleteCommand")
            {
                DeleteFunction(rowID);
            }
    }