我有一个用户控件,它以编程方式多次包含第二个用户控件,但最终结果是根本没有为控件生成任何 HTML。
默认.aspx
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="TestApplication._Default" %>
<%@ Register TagName="Ten" TagPrefix="me" Src="~/Ten.ascx" %>
<html>
<head runat="server"></head>
<body>
<form id="form1" runat="server">
<me:Ten ID="thisTen" runat="server" />
</form>
</body>
</html>
十.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="Ten.ascx.vb" Inherits="TestApplication.Ten" %>
<asp:Panel ID="List" runat="server"></asp:Panel>
十.ascx.vb
Public Class Ten
Inherits System.Web.UI.UserControl
Protected Sub Page_Init() Handles Me.Init
For I As Integer = 0 To 11
List.Controls.Add(New One(I.ToString))
Next
End Sub
End Class
一.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="One.ascx.vb" Inherits="TestApplication.One" %>
<asp:Button ID="OneButton" Text="Press ME!" runat="server" />
一.ascx.vb
Public Class One
Inherits System.Web.UI.UserControl
Private _number As String
Sub New(ByVal number As String)
_number = number
End Sub
Protected Sub OneButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles OneButton.Click
Dim script As String = "<script type=""text/javascript"">" +
"alert('Button " + _number + "');" +
"</script>"
ScriptManager.RegisterStartupScript(Me, Me.GetType(), "ServerControlScript", script, True)
End Sub
End Class
编辑:
使用负载控制 (Ten.aspx)
Dim p() As String = {I.ToString}
Dim o As One = Me.LoadControl(New One("").GetType, p)
List.Controls.Add(o)
编辑2:
Dim o As One = Me.LoadControl("~/One.ascx")
o._number = I.ToString
List.Controls.Add(o)