DropDownList OnSelectedIndexChanged不會觸發

我有MVC4 Web應用程序，我在.cshtml頁面內渲染了部分視圖（.ascx）。我添加了一個具有OnSelectedIndexChanged的下拉列表，它永遠不會觸發。請參閱下面DropDownList OnSelectedIndexChanged不會觸發

代碼Dashboard.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="Dashboard.ascx.cs" Inherits="iSPYCMS.Views.Dashboard" EnableViewState="true" %> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head id="Head1" runat="server"> 
<title>Charts Example</title> 
</head> 
<body style="padding:50px;background-color:white">   

<form id="form1" runat="server"> 

    <asp:DropDownList runat="server" ID="cmbTypeSeletion" Height="16px" Width="190px" EnableViewState="true" Enabled="true" OnSelectedIndexChanged="cmbTypeSeletion_SelectedIndexChanged"> 
     <asp:ListItem Enabled="true" Text="Downloads" Value="Downloads"> </asp:ListItem> 
     <asp:ListItem Enabled="true" Text="Plays" Value="Plays"></asp:ListItem> 
     <asp:ListItem Enabled="true" Text="Completion" Value="Completion"></asp:ListItem> 
    </asp:DropDownList> 
<div> 
    <script type="text/javascript" src="https://www.google.com/jsapi"> </script> 
    <asp:Literal ID="ltScripts" runat="server"></asp:Literal> 
    <div id="chart_div"> 
    </div> 
</div> 
</form> 
</body> 
</html>

Dashboard.ascx.cs

namespace iSPYCMS.Views 
{ 
    public partial class Dashboard : ViewUserControl 
    { 
    protected void cmbTypeSeletion_SelectedIndexChanged(object sender, EventArgs e) 
    { 

    } 
    } 
}

Index.cshtml

@{ 
Layout = "~/Views/Shared/_Layout.cshtml"; 
} 

<div> 
@Html.Partial("~/Views/Dashboard.ascx") 
</div>

來源

2016-05-10 Hammad Nasir

您正在混合webforms與MVC ..不好 – giammin

是的，我知道其實我不得不使用谷歌圖表，我找不到任何MVC的好例子，所以我使用用戶控件 –

谷歌圖表不需要webforms /回傳 – giammin

爲下拉列表設置AutoPostBack =「True」

來源

2016-05-10 10:24:52

–

仍然無效。我已添加屬性。 –

DropDownList OnSelectedIndexChanged不會觸發

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