在运行时从Dropdownlist检索数据 [英] Retrieve data from Dropdownlist at run time

问题描述

您好，我们熟悉提示输入地理位置的表格，例如国家/地区"，州/省"，城市".选择国家/地区后，该特定位置的州和城市将显示在下拉列表中.我的项目中需要这样的清单.谁知道如何使用sqldatasource做到这一点?我正在使用Visual Web Developer 2008和C#中的代码.

Hi, We are familiar with forms that prompt for our geographic location such as Country,state,City. when the country is selected , the states and cities in that particular location are listed in dropdown lists. I need such a list in my project. Can anyone know how to do it with the sqldatasource? I am working with Visual web developer 2008 and the code in C#.

推荐答案

引用
http://csharpdotnetfreak.blogspot.com/2009/03/populate-dropdown- based-selection-other.html [ ^ ]
http://www.dotnetspider.com/forum /266503-Country-State-City-DropdownList-Using-Asp-.Net-C.aspx [

Refer
http://csharpdotnetfreak.blogspot.com/2009/03/populate-dropdown-based-selection-other.html[^]
http://www.dotnetspider.com/forum/266503-Country-State-City-DropdownList-Using-Asp-.Net-C.aspx[^]

这是一个可能的网站在:

http://www.dbtutorials.com/advanced/populatingdropdown-csharp.aspx [ ^ ]

但是，还有其他数百个站点对此进行了解释！也许您还不了解Google.因此，我将在短期内对此进行解释.转到www.google.com(顺便说一下，这是一个搜索引擎).您可以在此处输入要搜索的关键字.例如，尝试:"asp.net dropdownlist数据库"，然后按Enter！就像魔术一样，将会显示很多搜索结果，这可能会对您的研究有所帮助.祝你好运，请将此信息传递给您的朋友.

This is one possible site to look at:

http://www.dbtutorials.com/advanced/populatingdropdown-csharp.aspx[^]

But there are also hundres of other sites that explain this! Maybe you dont know Google yet. So i''ll shortly explain it. Go to www.google.com (this is a search engine by the way). There you can enter keywords which should be searched for. For example try: "asp.net dropdownlist database" and press Enter! Like magic a lot of search results will show up which may help you in your research. Good luck and please pass this information on to your friends.

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