GridView中动态设置CommandField是否可用或可见的小例子

 protected void gvMaterial_RowDataBound(object sender, gridviewRowEventArgs e)

        {

            if (e.Row.RowType == DataControlRowType.DataRow || e.Row.RowType == DataControlRowType.Header)

            {

                e.Row.Cells[0].Visible = false;

            }

            if (e.Row.RowType == DataControlRowType.DataRow)

            {

                e.Row.Cells[1].Text = (gvMaterial.PageIndex * gvMaterial.PageSize + e.Row.RowIndex + 1).ToString();

                string price;

                try //让编辑功能在特定条件下可以用

                {

                     price = ((TextBox)e.Row.Cells[4].Controls[0]).Text;//点编辑的时候用

                }

                catch

                {

                     price = e.Row.Cells[4].Text;    //出始时用

                }                         

                if (price == “” || price == “ ”)

                {

                    e.Row.Cells[7].Controls[0].Visible = false;

                }

                else

                {

                    e.Row.Cells[7].Controls[0].Visible = true;

                }

            }

        }