This article demonstrates how to dynamically
create/handle a control for an .aspx page.
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
<asp:ListItem>4</asp:ListItem>
<asp:ListItem>5</asp:ListItem>
<asp:ListItem>6</asp:ListItem>
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
<asp:Label ID="Label1" runat="server"></asp:Label><br />
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
<br />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Read" />
</div>
</form>
protected void Page_Load(object sender, EventArgs e)
{
CreateTextBox(Int32.Parse(DropDownList1.SelectedItem.Value));
}
void CreateTextBox(int Total)
{
for (int i = 0; i < Total; i++)
{
TextBox TextBox1 = new TextBox();
TextBox1.ID = "TextBox1" + i.ToString();
TextBox1.TextChanged += new EventHandler(TextBox_TextChanged);
PlaceHolder1.Controls.Add(TextBox1);
}
}
void TextBox_TextChanged(object sender, EventArgs e)
{
TextBox txtBoxSender = (TextBox)sender;
Label1.Text += txtBoxSender.Text +"-";
}
protected void Button2_Click(object sender, EventArgs e)
{
// Todo : other operation
}
Another example : http://support.microsoft.com/kb/317794
Keywords : Create and handle dynamic controls.
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