access textbox in button click

[Tina]

How can I access the textbox in button click event?

  <NestedViewTemplate>
      <asp:Button ID="Button1" runat="server" onclick="Button1_Click" />
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</NestedViewTemplate>

[Shinu]

Hello Tina,

Try the following code.
C#:

protected void Button1_Click(object sender, EventArgs e)
{
 Button button1 = (Button)sender;
 GridNestedViewItem item = (GridNestedViewItem)button1 .NamingContainer;
 TextBox txtbox = (TextBox)item.FindControl("TextBox1");
}

-Shinu.