protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
问题一:这个分页功能的实现过程和原理是什么???
            GetDataTable(temp);
        }
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            this.GridView1.EditIndex = -1;
问题二:这个编辑功能的实现过程和原理是什么???

            this.GetDataTable(temp);
        }
        protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
            this.GridView1.EditIndex = e.NewEditIndex;
            this.GetDataTable(temp);
        }