protected override void OnPreRender(EventArgs e)
{
if (!Expanded)
{
Style["display"] = "none";
}
if (Level >= 2)
{
if (CssClass.IndexOf("sub-dropper") == -1)
{
CssClass += " sub-dropper";
}
}
base.OnPreRender(e);
}
// Build CSS classes for the "root" DOM element ("this control")
private void BuildCssForRootElement()
{
string tmpCssClass = "";
if (ChildTreeNodes == null)
{
tmpCssClass += "no-childs";
}
else if (ChildTreeNodes.Expanded)
{
tmpCssClass += "expanded";
}
else
{
tmpCssClass += "collapsed";
}
if (Array.Exists(ParentTree.SelectedNodes, delegate(TreeNode node) { return(node == this); }))
{
tmpCssClass += " selected";
}
tmpCssClass += " item ";
if (!string.IsNullOrEmpty(CssClass))
{
bool hasPreviouslySetTreeStuff = CssClass.IndexOf(" item ") != -1;
if (hasPreviouslySetTreeStuff)
{
string oldCssClass = CssClass.Substring(CssClass.IndexOf(" item ") + 6);
tmpCssClass += oldCssClass;
}
else
{
tmpCssClass += CssClass;
}
}
CssClass = tmpCssClass;
}
