ASP.Net DropDownList SelectedIndexChanged和Selected Value Problem [英] ASP.Net DropDownList SelectedIndexChanged and Selected Value Problem

问题描述

在我的Web应用程序中有一些DropDownList。我为每个下拉列表使用selectedindexchanged事件。但只有一个下拉列表会产生问题。它被选中的索引更改事件未被触发，当我尝试选择一个项目时，它选择它的默认值。



启用AutoPostBack和ViewState



不明白该怎么做。

In my web application there are some DropDownList. I use selectedindexchanged event for every dropdownlist. but only a single dropdownlist creates problem. it's selected index changed event not fired and also when i try to select an item, it select it's default value.

AutoPostBack and ViewState enabled

don't understand what to do.

推荐答案

请确保您不会在Page_Load中的每个帖子中绑定您的ddl数据。把你的绑定逻辑放在里面if（！IsPostBack）

Please make sure your not binding your ddl data in every post back inside Page_Load. Put your binding logic inside if(!IsPostBack)

if(!IsPostBack)
{
//bind your ddl here
}

我也遇到了同样的问题，你解决了。谢谢兄弟。

I too got same problem,you solved it.thanks Bro.

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