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I noticed that when navigating an ASP.Net web site the nodes in the TreeView always expand.
Is there a setting or attribute we can include in the markup that will keep the TreeView nodes collapsed until the user expands them?
Maybe something is needed to be added to the code-behind file?
Yes there is, it’s called ExpandDepth
ExpandDepth – Gets or sets the number of levels that are expanded when a TreeView control is displayed for the first time.
If you want all the nodes, including the root, to be collapsed just set it to 0