see examples:ASP.NET Custom Web Control http://www.csharphelp.com/archives/archive247.htmlCreating a Custom Web Control To Consume an XML Web Service http://www.15seconds.com/issue/020117.htmBuilding a custom web control: a textbox and validator in one! http://www.wimdows.net/articles/article.aspx?aid=7
具体点可以么
http://www.csharphelp.com/archives/archive247.htmlCreating a Custom Web Control To Consume an XML Web Service
http://www.15seconds.com/issue/020117.htmBuilding a custom web control: a textbox and validator in one!
http://www.wimdows.net/articles/article.aspx?aid=7