DropdownBox选择项转到NaviGated Url

本文介绍了DropdownBox选择项转到NaviGated Url的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在设计一个应用程序.要采取一个下拉框，按钮.然后选择项目，然后按按钮转到该页面.我正在尝试但出现错误执行子请求"，所以请给个想法以解决此问题.

Hi,
I am Design One Application. To Taken One Drop Down Box, button. Then Selected Item Then Press Button Go to That Page. I am Trying But Error " Execute Child Request " So please Give For Idea To Solve This Problem.

推荐答案

<div>
        <asp:DropDownList ID="DropDownList1" runat="server" Height="16px" Width="66px">
            <asp:ListItem>select</asp:ListItem>
            <asp:ListItem>http://www.codeproject.com/Questions/383971/DropdownBox-Selted-item-To-NaviGated-Url</asp:ListItem>
            <asp:ListItem>http://www.google.co.in/</asp:ListItem>


        </asp:DropDownList>


        <br />
        <br />
        <br />
        <asp:Button ID="Button3" runat="server" Text="Button" />


    </div>

在CS页面中:

In CS Page:

Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click
        Response.Redirect(DropDownList1.SelectedItem.Text)
    End Sub

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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 runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList runat="server" ID="DDl">
            <asp:ListItem>One</asp:ListItem>
            <asp:ListItem>Two</asp:ListItem>
            <asp:ListItem>Three</asp:ListItem>
        </asp:DropDownList>
        <br />
        <asp:Button  runat="server" ID="btnSubmit" Text="Submit"

            onclick="btnSubmit_Click"/>
    </div>
    </form>
</body>
</html>

protected void btnSubmit_Click(object sender, EventArgs e)
   {
       if (DDl.SelectedIndex == 0)
       {
           Response.Redirect("One.aspx");
       }
       else if (DDl.SelectedIndex == 1)
       {
           Response.Redirect("Two.aspx");
       }
       else if (DDl.SelectedIndex == 2)
       {
           Response.Redirect("Three.aspx");
       }
   }

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