用TreeView浏览目录

王朝other·作者佚名  2008-06-01
窄屏简体版  字體: |||超大  

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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