Dynamically Adding Controls to a Web Page...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>DynamicDropDowns</title>
<meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name=vs_defaultClientScript content="JavaScript">
<meta name=vs_targetSchema content="http://schemas.microsoft.com/intellisense/ie5">
</head>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<h4>Enter Number of DropDownLists:</h4>
<asp:TextBox ID="txtNumControls" Runat="server" />
<asp:Button ID="btnControls" Text="OK" OnClick="btnControls_Click" Runat="server" />
</form>
</body>
</html>
Protected WithEvents txtNumControls As System.Web.UI.WebControls.TextBox
Protected WithEvents btnControls As System.Web.UI.WebControls.Button
Protected WithEvents Form1 As System.Web.UI.HtmlControls.HtmlForm
Public Sub btnControls_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim I, J As Integer
For I = 1 to txtNumControls.Text
Dim ctrlDropDown = New System.Web.UI.WebControls.DropDownList
ctrlDropDown.ID = "ddlDynamic" & I
For J = 1 To 4
Dim listItem As New System.Web.UI.WebControls.ListItem
listItem.Text = "DropDownList " & I & " : " & J
ctrlDropDown.Items.Add(listItem)
Next
Dim literalControl = New System.Web.UI.LiteralControl
literalControl.Text = "<p>"
form1.Controls.Add(literalControl)
form1.Controls.Add(ctrlDropDown)
Next
End Sub
End Class
You may download the code here.