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<hr><p align="left"><small>为什么在TreeView中直接设置Selected属性会导致整个树的第一个节点，即 <br>

TreeView1-〉Items-〉Item[0]变成Selected中设置的那个节点，也就是说使 <br>

树的结构发生变化？ <br>

例如下面这段简单程序： <br>

TreeView2复制了TreeView1的结构，BitBtn2和BitBtn3的作用是强制设置TreeView2 <br>

和TreeView1的Selected节点。通过跟踪程序发现，每一次设置完Seleted属性后，树 <br>

的结构都乱了。那位高手给解释一下？多谢！！ <br>

//--------------------------------------------------------------------------- <br>

#include <vcl.h> <br>

#pragma hdrstop <br>

  <br>

#include "Unit1.h" <br>

//--------------------------------------------------------------------------- <br>

#pragma package(smart_init) <br>

#pragma resource "*.dfm" <br>

TForm1 *Form1; <br>

//--------------------------------------------------------------------------- <br>

__fastcall TForm1::TForm1(TComponent* Owner) <br>

     : TForm(Owner) <br>

{ <br>

} <br>

//--------------------------------------------------------------------------- <br>

  <br>

  <br>

void __fastcall TForm1::BitBtn1Click(TObject *Sender) <br>

{ <br>

 TreeView1->SaveToFile("c:\\trvwxchg.tmp"); <br>

 TreeView2->LoadFromFile("c:\\trvwxchg.tmp"); <br>

 TreeView1->FullExpand(); <br>

 TreeView2->FullExpand(); <br>

 TreeView1->Repaint(); <br>

 TreeView2->Repaint(); <br>

} <br>

//--------------------------------------------------------------------------- <br>

  <br>

void __fastcall TForm1::BitBtn2Click(TObject *Sender) <br>

{ <br>

TreeView2->Selected=TreeView2->Items->Item[TreeView1->Selected->AbsoluteIndex]; <br>

TreeView2->Repaint(); <br>

  <br>

} <br>

//--------------------------------------------------------------------------- <br>

void __fastcall TForm1::BitBtn3Click(TObject *Sender) <br>

{ <br>

TreeView1->Selected=TreeView1->Items->Item[TreeView2->Selected->AbsoluteIndex]; <br>

TreeView1->Repaint(); <br>



  <br>

} <br>

//--------------------------------------------------------------------------- <br>

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