public override void RenderImageLink(TreeNode node, HtmlTextWriter output)
{
int indent = node.Indent; //0-based
StringBuilder sb = new StringBuilder();
while (indent > 0) //each indent level means one image
{
bool hasSibling, parentHasSibling, isTop;
hasSibling = node.NextSibling() != null;
isTop = node.Parent is TreeView;
if (node.Parent is TreeNode)
{
parentHasSibling = ParentHasSibling(node, node.Indent - indent);
}
else
{
parentHasSibling = false;
}
if (node.Indent == indent) //first item in the indent
{
if (node.HasControls()) //there are children here
{
string anchorStart, anchorEnd;
anchorStart = "<a href=\"" +
this.TreeView.Page.GetPostBackClientHyperlink(this.TreeView, node.UniqueID) +
"\">";
anchorEnd = "</a>";
if (hasSibling) //down dots
{
if (node.IsExpanded) //minus image
{
if (IsFirst())
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "topexpandedsibling.gif' border='0'>" + anchorEnd);
}
else
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "middleexpandedsibling.gif' border='0'>" + anchorEnd);
}
}
else //plus image
{
if (IsFirst())
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "topcollapsedsibling.gif' border='0'>" + anchorEnd);
}
else
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "middlecollapsedsibling.gif' border='0'>" + anchorEnd);
}
}
}
else //no down dots
{
if (node.IsExpanded) //minus image
{
if (IsFirst())
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "topexpandednosibling.gif' border='0'>" + anchorEnd);
}
else
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "middleexpandednosibling.gif' border='0'>" + anchorEnd);
}
}
else //plus image
{
if (IsFirst())
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "topcollapsednosibling.gif' border='0'>" + anchorEnd);
}
else
{
sb.Insert(0, anchorStart + "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "middlecollapsednosibling.gif' border='0'>" + anchorEnd);
}
}
}
}
else // no children
{
if (hasSibling)
{
sb.Insert(0, "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "middlesiblingnochildren.gif' border='0'>");
}
else
{
sb.Insert(0, "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "bottomnosiblingnochildren.gif' border='0'>");
}
}
}
else // prior item in the indent
{
if (parentHasSibling)
{
sb.Insert(0, "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "vertbardots.gif' border='0'>");
}
else
{
sb.Insert(0, "<img align='top' src='" + this.TreeView.WindowsLafImageBase + "clear.gif' border='0'>");
}
}
indent--;
}
output.Write(sb.ToString());
}
public override void RenderImageLink(TreeNode node, HtmlTextWriter output)
{
int indent = node.Indent;
StringBuilder builder = new StringBuilder();
while (indent > 0)
{
bool flag2;
bool flag = node.NextSibling() != null;
bool flag3 = node.Parent is TreeView;
if (node.Parent is TreeNode)
{
flag2 = this.ParentHasSibling(node, node.Indent - indent);
}
else
{
flag2 = false;
}
if (node.Indent == indent)
{
if (node.HasControls())
{
string text = "<a href=\"" + base.TreeView.Page.GetPostBackClientHyperlink(base.TreeView, node.UniqueID) + "\">";
string text2 = "</a>";
if (flag)
{
if (node.IsExpanded)
{
if (this.IsFirst())
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "topexpandedsibling.gif' border='0'>" + text2);
}
else
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "middleexpandedsibling.gif' border='0'>" + text2);
}
}
else if (this.IsFirst())
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "topcollapsedsibling.gif' border='0'>" + text2);
}
else
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "middlecollapsedsibling.gif' border='0'>" + text2);
}
}
else if (node.IsExpanded)
{
if (this.IsFirst())
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "topexpandednosibling.gif' border='0'>" + text2);
}
else
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "middleexpandednosibling.gif' border='0'>" + text2);
}
}
else if (this.IsFirst())
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "topcollapsednosibling.gif' border='0'>" + text2);
}
else
{
builder.Insert(0, text + "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "middlecollapsednosibling.gif' border='0'>" + text2);
}
}
else if (flag)
{
builder.Insert(0, "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "middlesiblingnochildren.gif' border='0'>");
}
else
{
builder.Insert(0, "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "bottomnosiblingnochildren.gif' border='0'>");
}
}
else if (flag2)
{
builder.Insert(0, "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "vertbardots.gif' border='0'>");
}
else
{
builder.Insert(0, "<img align='top' src='" + base.TreeView.WindowsLafImageBase + "clear.gif' border='0'>");
}
indent--;
}
output.Write(builder.ToString());
}