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void __fastcall TForm1::FormCreate(TObject *Sender)
{
CurrentDir=GetCurrentDir();
UpdateTreeView();
UpdateListView();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::UpdateTreeView()
{
TTreeNode *rNode,*mNode;
TreeView1->Items->Clear();
rNode=TreeView1->Items->Add(TreeView1->Selected,"我的电脑");
rNode->ImageIndex=1;
rNode->SelectedIndex=1;
mNode=TreeView1->Items->AddChild(rNode,"A:");
mNode->ImageIndex=2;
mNode->SelectedIndex=2;
AddDirectory("A:",mNode);
for(int i=1;i<DriveComboBox1->Items->Count;i++)
  {
  mNode=TreeView1->Items->AddChild(rNode,AnsiString(char('B'+i))+":");
  mNode->ImageIndex=3;
  mNode->SelectedIndex=3;
  AddDirectory(AnsiString(char('B'+i))+":",mNode);
  }
}

//------------------------------------------------------------------------
void TForm1::AddDirectory(AnsiString path,TTreeNode *fNode)
{
TSearchRec sr;
TTreeNode *mNode;
if(FindFirst(path+"//*.*" ,faDirectory,sr)==0)
  {
  if(sr.Attr==faDirectory)
    {
    if(sr.Name!="."&&sr.Name!="..")
      {
      mNode=TreeView1->Items->AddChild(fNode,sr.Name);
      mNode->ImageIndex=0;
      mNode->SelectedIndex=4;
      // AddDirectory(path+"//"+sr.Name,mNode);
      }
    }
  }
while(FindNext(sr)==0)
  {
  if(sr.Attr==faDirectory)
    {
    if(sr.Name!="."&&sr.Name!="..")
      {
      mNode=TreeView1->Items->AddChild(fNode,sr.Name);
      mNode->ImageIndex=0;
      mNode->SelectedIndex=4;
      // AddDirectory(path+"//"+sr.Name,mNode);
      }
    }
  }
FindClose(sr);
}

//--------------------------------------------------------------------

void __fastcall TForm1::TreeView1Changing(TObject *Sender, TTreeNode *Node, bool &AllowChange)
{
Screen->Cursor=crHourGlass;
TSearchRec sr;
TTreeNode *NodeTmp=Node;
AnsiString DirName,DirTmp;
DirName=Node->Text;
for(int i=Node->Level;i>1;i--)
  {
  NodeTmp=NodeTmp->Parent;
  DirTmp=NodeTmp->Text;
  if(DirTmp.SubString(DirTmp.Length(),1)!="//")
  DirTmp+="//";
  DirName.Insert(DirTmp,0);
  }
if(DirName.SubString(DirName.Length(),1)!="//")
  DirName+="//";
for(int j=0;j<Node->Count;j++)
  {
  if(Node->Item[j]->Count==0);
    {
    if(FindFirst(DirName+Node->Item[j]->Text+"//*.*", faAnyFile, sr) == 0)
      {
      do
        {
        //Node->Item[j]->ImageIndex=5;
        //Node->Item[j]->SelectedIndex=4;
        if((sr.Attr&faDirectory)&&sr.Name!="."&&sr.Name!="..")
          {
          Node->Item[j]->ImageIndex=0;
          Node->Item[j]->SelectedIndex=4;
          TreeView1->Items->AddChild(Node->Item[j],sr.Name);
          }
        }
        while (FindNext(sr)==0);
        FindClose(sr);
      }
    }
  }
Screen->Cursor=crDefault;
}

 

 

 
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