asp.net中dropdownlist的SelectedIndexChanged未触发 [英] SelectedIndexChanged of dropdownlist in asp.net is not firing

问题描述

我使用asp.net，C#，VS 2005，sql server 2005 ..

我有一个aspx页面...
当Page_Load(object sender，EventArgs e)发生在iam加载下拉列表中时，带有来自数据库...的一些文本值，例如study1，study2 ....

但是当我单击下拉列表的这些项目SelectedIndexChanged(object sender，EventArgs e)时不会触发...

任何帮助...

问候
karan

i m using asp.net,C#,VS 2005,sql server 2005..

i have a aspx page...
when Page_Load(object sender, EventArgs e) occurs iam loading dropdownlist with some text values such as study1,study2.... from database...

but when i click on these items SelectedIndexChanged(object sender, EventArgs e) of dropdownlist does not firing...

any help plz...

regards
karan

推荐答案

设置dropdown的autopost back属性= True

像下面

< asp:DropDownList ID ="Dropdown1" runat ="server" AutoPostBack ="true">

set autopost back property of dropdown = True

like Below

<asp:DropDownList ID="Dropdown1" runat="server" AutoPostBack="true">

这篇关于asp.net中dropdownlist的SelectedIndexChanged未触发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！