後台操作gridview中 hyperlinkfield

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       protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                HyperLink hl = (HyperLink)e.Row.Cells[0].Controls[0];
                if (hl.Text.Length > 20)//設定條件
                {
                    hl.Enable=false;
                }
            }
        }