How to select data from SQL server table on treeview selected node click event

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Hi All,

I am using Treeview control in Master page left hand side and right hand side using user control to display existing product as per selected node in treeview. Ex:
>Mobile
>Samsung
>Nokia
>Motorola
>TV
>Onida
>Samsung

Problem: I want to display all the child product comes under one parent node in Datalist user control and same for the other selected parent and child node as well. All the data should come from SQL server table in treeview as well as user control.

But I have no clue how to do? Can anyone help me to come out from this?

Could you provide me the link or C# code(I'm using C# with ASP.NET 4.0)?

Posted 7-Jun-12 0:27am

anoj k

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Maciej Los · Accepted Answer · 2012-06-07T06:17:00

1) Catch TreeView.SelectedNodeChanged[^] event and get the value of TreeNode.Text[^]
2) Write and execute a query like this:

SQL

SELECT * 
FROM Products
WHERE ProductName = @prodname

3) Read data returned by query and add new nodes for selected node.

Alternative:
Populating a TreeView Control from the Database[^]

More at:
http://www.dreamincode.net/code/snippet922.htm[^]
http://www.dotnetspider.com/resources/30981-Binding-Treeview-from-database.aspx[^]
http://www.eggheadcafe.com/articles/treeview_databinding.asp[^]