templatefield可以隐藏,但如何通过单击一个事件,让他显示?

Question

templatefield可以隐藏,但如何通过单击一个事件,让他显示?隐藏templatefield:
 <asp:TemplateField HeaderText ="出库" Visible ="false" >  
如何通过单击一个事件,让他显示:
    Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButton1.Click
 '这里面如何写代码,让templatefield的Visible ="true"  ???        End If

Answer 1

下面的例子显示 /隐藏编号,经执行可行   <style type="text/css">
      .ShowCell
        {
            display:inherit;
        }      .HiddenCell
        {
            display:none;
        }
            
    
    </style>
    
    
    <script type="text/javascript">
    function SetVisible(){
        var tbl=document.getElementById("GridView1");
        var i;
        
        for(i=0;i<tbl.rows.length;i++){
            var td=tbl.rows[i].cells[0];
            if(td.className=='ShowCell'){
                if(i==tbl.rows.length-1)
                {
                    td.colSpan=td.colSpan-1;
                }
                
                else
                {
                    td.className='HiddenCell';
                }
            }
            else 
            {                if(i==tbl.rows.length-1)
                {
                    td.colSpan=td.colSpan+1;
                }
                
                else
                {
                    td.className='ShowCell';
                }
            }
        }
    
    }
    
    </script>
  
        <input id="btnShow" type="button" value="show" onclick="SetVisible();"/>     <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
            AutoGenerateColumns="False" CellPadding="4" DataKeyNames="ID" DataSourceID="SqlDataSource1"
            ForeColor="#333333" GridLines="None" Height="321px" Width="567px" PageIndex="5">
            <FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
            <Columns>
                <asp:BoundField DataField="ID" HeaderText="编号" InsertVisible="False" ReadOnly="True"
                    SortExpression="ID" HeaderStyle-CssClass="HiddenCell" ItemStyle-CssClass="HiddenCell" FooterStyle-CssClass="HiddenCell" />
                <asp:BoundField DataField="UserName" HeaderText="姓名" SortExpression="UserName" />

Answer 2

foreach(DataControlField dc in this.oData.Columns)
{
    if (dc.HeaderText == "出库") { dc.Visible = true; break; }
}