将gridview内容显示到textbox的问题

[pinkyll]

在gridview加一模版列，托进linkbotton，点击它，将所在行的内容显示在当页textbox
protected void LinkButton1_Command(object sender, CommandEventArgs e)
{
if (e.CommandName == "Selecte")
{
TextBox1.Text = ？
TextBox2.Text =
TextBox3.Text =
TextBox4.Text =
}
}
请教大家了，谢谢！

[Eddie005]

<asp:GridView ID="GridView1" DataKeyNames="field1,field2,field3,field4" ...
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Select">LinkButton</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
**************************
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Select")
{

this.TextBox1.Text = GridView1.SelectedDataKey["field1"].ToString();
this.TextBox2.Text = GridView1.SelectedDataKey["field2"].ToString();
this.TextBox3.Text = GridView1.SelectedDataKey["field3"].ToString();
this.TextBox4.Text = GridView1.SelectedDataKey["field4"].ToString();
}
}

[pinkyll]

this.TextBox1.Text = GridView1.SelectedDataKey["biaoti"].ToString();
错误提示,未将对象引用设置到对象的实例

[pinkyll]

大家帮帮忙啊,谢谢了

[pfc001]

to Eddie005(♂) №.零零伍 (♂)

[shyao_2006]

大家都来帮忙吧！