浏覽文件的一段代碼

#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
TTreeNode* currnode;
int DirCount,FileCount,DriveCount;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void TForm1::TreeInit(String path, TTreeNode * mynode)
{
TSearchRec sr;
if(FindFirst(path+"\\*.*",faAnyFile,sr)==0)
{
do
{
if((sr.Attr& faDirectory)==faDirectory)
{
if(sr.Name!="." && sr.Name!="..")
{
currnode=TreeView1->Items->AddChild(mynode,sr.Name);
TreeInit(path+"\\"+sr.Name,currnode);
DirCount++;
}
}
/*
else
{
if(path.SubString(1,1)=="A" || path.SubString(1,1)=="B")
{
currnode=TreeView1->Items->AddChild(mynode,sr.Name);
FileCount++;
}
}
*/
}
while(FindNext(sr)==0);
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
String Drive,path;
DirCount=FileCount=0;
DriveCount=DriveComboBox1->Items->Count;
TreeView1->Items->BeginUpdate();
TreeView1->Items->Clear();
currnode=TreeView1->Items->Add(TreeView1->Selected,"我的電腦");
currnode->Selected=true;
for(int i=0;i<DriveCount;i++)
{
Drive=DriveComboBox1->Items->Strings[i].SubString(1,1);
path=Drive+":";
currnode=TreeView1->Items->AddChild(TreeView1->Selected,DriveComboBox1->Items->Strings[i]);
TreeInit(path,currnode);
}
TreeView1->Items->EndUpdate();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::TreeView1Click(TObject *Sender)
{
int i;
String path;
TTreeNode *node;
node=TreeView1->Selected;
//得到用戶選擇的當前路徑：
if(node->Level)
{//當用戶選擇的不是根節點時
do
{
if(node->Level==1)
path=node->Text.SubString(1,2)+(path.Length()?"\\":"")+path;
else
path=node->Text+(path.Length()?"\\":"")+path;
node=node->Parent;
}
while(node->Level);
//刷新右邊的列表視圖：
ListView1->Items->BeginUpdate();
ListView1->Items->Clear();
TSearchRec sr;
if(FindFirst(path+"\\*.*",faAnyFile,sr)==0)
{
TListItem *li;
do
{
if(sr.Name!="." && sr.Name!="..")
{
li=ListView1->Items->Add();
li->Caption=sr.Name;
if(sr.Attr==faDirectory)
{
li->SubItems->Add("");
li->SubItems->Add("文件夾");
}
else
{
li->SubItems->Add(IntToStr(sr.Size));
li->SubItems->Add("文件");
}
li->SubItems->Add(FileDateToDateTime(sr.Time).DateTimeString());
}
}
while(FindNext(sr)==0);
FindClose(sr);
}
ListView1->AlphaSort();
ListView1->Items->EndUpdate();
}
else
{
TListItem *li;
ListView1->Items->BeginUpdate();
ListView1->Items->Clear();
for(i=0;i<TreeView1->Selected->Count;i++)
{
li=ListView1->Items->Add();
li->Caption=TreeView1->Selected->Item[i]->Text;
}
ListView1->Items->EndUpdate();
}
}
//---------------------------------------------------------------------------