How to make optgroups using ASP.NET WebForms
I'm working with ASP开发者_运维知识库.NET. I want to make optgroups in a DropDownList using data binding to data from SQL Server. For example, I've got 2 tables — one for country & another for states. In my drop down list in ASP.NET, I want to bind to the data in these 2 tables. The country table should become optgroup, & states should go under that.
-India- kerala tamilnadu -america- newyork
Actually you can solve this with a hack. Override RenderContents of the DropDownlist like this http://weblogs.asp.net/jeff/archive/2006/12/27/dropdownlist-with-optgroup.aspx
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