// 专为供Xml属性设得私有函数
private void SetXml(string strXml)
{
strXml = strXml.Trim();
if (strXml == "")
{
if (this.VirtualRoot != null)
{
this.VirtualRoot.FireTreeRemoveEvents(this.VirtualRoot.GetXPath());
}
this.VirtualRoot = null;
this.docRoot = null;
this.SetCurText(null,null);
this.SetActiveItem(null);
AfterDocumentChanged(ScrollBarMember.Both);
this.Invalidate();
// 文档发生变化
this.FireTextChanged();
return;
}
if (this.VirtualRoot == null)
{
this.VirtualRoot = new VirtualRootItem(this);
this.VirtualRoot.LayoutStyle = this.m_layoutStyle ;
this.VirtualRoot.m_bConnected = true;
}
else
{
this.VirtualRoot.ClearAttrs();
this.VirtualRoot.ClearChildren();
}
XmlDocument dom = new XmlDocument();
dom.PreserveWhitespace = true;
dom.LoadXml(strXml);
ElementInitialStyle style = new ElementInitialStyle();
style.attrsExpandStyle = ExpandStyle.Expand;
style.childrenExpandStyle = ExpandStyle.Expand;
style.bReinitial = false;
this.VirtualRoot.Initial(dom,//dom.DocumentElement,
allocator,
style,
true);
this.docRoot = this.GetDocRoot();
this.VirtualRoot.InitialVisual();
int nWidth = 0;
int nHeight = 0;
this.VirtualRoot.Layout(0,
0,
this.ClientSize .Width -1,
0 ,
nTimeStampSeed++,
out nWidth,
out nHeight,
LayoutMember.Layout );
this.SetCurText(this.VirtualRoot,null);
this.SetActiveItem(this.VirtualRoot);
if (this.m_bFocused == true)
this.curEdit.Focus();
AfterDocumentChanged(ScrollBarMember.Both);
this.Invalidate();
// 文档发生变化
this.FireTextChanged();
}
// 右 -- 剪切
public void CutToClipboard(Item item)
{
string strXml = item.OuterXml;
Clipboard.SetDataObject(strXml);
// ???????虚根
if (item == this.VirtualRoot)
{
this.Xml = "";
this.VirtualRoot = null;
this.docRoot = null;
}
else
{
ElementItem myParent = item.parent;
// 移走当前节点
myParent.Remove(item);
}
}