I am using the tooltip feature of the Treeview. However there seems to be a limit on the amount of characters that the tooltip will display. This limit is around 500. I'm not sure if this is a limitation of the control or the browser. Is there anyway around this? I'm currently looking into building a custom tooltip if that is my only option.

Thanks

Ben

I had a feeling. I went ahead and coded my own implentation just in case. Here is the basic code.
ASPX
<script language="javascript" type="text/javascript">
function showToolTip(e, text) {

// Get the height
var offsetHeight = parseInt(e.offsetY);
// Get the width
var offsetWidth = parseInt(e.offsetX);

var div = document.getElementById('Tooltip');
div.style.position = 'absolute';

// Set the div top to the height
div.style.top = parseInt(offsetHeight) + parseInt('10');

// Set the div Left to the height
div.style.left = parseInt(offsetWidth) + parseInt('10');

// Show the div layer
div.style.display = 'block';

// Set its Text to your desired text
if (text.length == 0) {
text = "No Description Available";
}

div.innerText = text;

div.style.height = (text.length /4)
}
function hideToolTip() {
var div = document.getElementById('Tooltip');
div.style.display = 'none';
}
</script>
<div id="Tooltip" style='DISPLAY:none;WIDTH:350px;HEIGHT:200px;padding: 5px; margin: 10px; z-index: 100;background: #f0f0f0; border: 1px dotted #c0c0c0;'></div>

Add a custom item to your treenode
<CustomItem>
<asp:Label ID="lblItem" runat="server" Text='<%#Eval("Text")%>'/>
</CustomItem>

Code Behind
Protected Sub TreeView1_ItemDataBound(ByVal sender As Object, ByVal e As EO.Web.NavigationItemEventArgs) Handles TreeView1.ItemDataBound

If (Not IsNothing(e.TreeNode.CustomItemInstance)) Then
Dim dLbl As Label = e.TreeNode.CustomItemInstance.FindControl("lblItem")
'Get the text from the db
dLbl.Attributes.Add("onMouseOver", "showToolTip(event, '" & Text & "');")
dLbl.Attributes.Add("onMouseOut", "hideToolTip();")
End If
End Sub

Hope that helps someone in the future.

Thanks,
Ben