绑定特定的嵌套数据列表

Question

I am using nested Datalist. Now, I want to bind specific inside datalist based on dropdown value selection. I am able to bind all inside datalist but not only one specific.

For ie,

Main and Nested Datalist is as below :

.NET <-main datalist
C# <-nested datalist
vb

Java
1
2

Now, .NET and Java both contains dropdown. If user select value c# from .NET dropdown then I want to bind only nested datalist of .NET, means only display c# or say based on dropdown condition. And if now, user select 1 from Java then it show only 1 but .NET is showing c# only which must not be changed untill user filter .NET dropdown.

Please help me solve the problem.

Answer 1

If DropDown is in Main DataList then dropdown even can be catched in the "DataList1_ItemCommand" event and in this even check the command name and argument, find the nested datalist with findcontrol method of main datalist. Bind the nested DataList according to condition.

1) MainDataList_ItemCommand
2) Check the command name and emphasized textargument
3) Find the nested Datalist
4) Perform filteration on the basis of selected value of dropdown
5) Bind the nested Datalist.