C# - TreeView Control / All The Expanded Sub Tree Disappears?
Apr 4, 2010
I have a public folder on the server that contains recursively nested sub folders. In the various Leaf folders contains Images. I wanted to create a server side file browser that will display the Images to the user.I am using the ASP.NET TreeView Control.I create the tree nodes using PopulateOnDemand.
If the user click on a leaf directory I want the images in that folder to be displayed in a DataList Control.The problem is that when I click on a sub tree node (after I expanded it parent node)All the expanded sub tree disappears and only the parent node is showed with no + sign next to it !!( I have set the TreeView's PopulateNodesFromClient property to true )Here is the code :
<asp:TreeView ID="TreeView1" runat="server" AutoGenerateDataBindings="False"
onselectednodechanged="TreeView1_SelectedNodeChanged"
ontreenodepopulate="TreeView1_TreeNodePopulate">
</asp:TreeView> [code]....
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[Code]....
store the state of a TreeView on postback?
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