数学建模社区-数学中国
标题: 用TreeView浏览目录 [打印本页]
作者: 韩冰 时间: 2005-1-26 12:30
标题: 用TreeView浏览目录
% \4 `3 q! X; H! P2 Uvoid __fastcall TForm1::FormCreate(TObject *Sender)
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3 b. ~6 v4 D, n4 Z$ C. C: OCurrentDir=GetCurrentDir();
) j# Z3 @9 ]' Z( }' `UpdateTreeView(); ' A8 p- n" Y9 m4 S/ ^; k) s# U
UpdateListView();
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}
5 d4 r) i( s# `' g5 j; S//---------------------------------------------------------------------------
; v& z3 ?5 d# R1 q8 S( r( Z% X3 lvoid __fastcall TForm1::UpdateTreeView() % x. _- y+ L1 I/ c
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TTreeNode *rNode,*mNode; 4 }8 ?2 w. J. ]
TreeView1->Items->Clear();
; Q) A- |2 Z w M* }rNode=TreeView1->Items->Add(TreeView1->Selected,"我的电脑"); / F1 W7 ]. c, R( q) e% D! J
rNode->ImageIndex=1; / u" i/ W+ s. U2 J" l
rNode->SelectedIndex=1;
* [! u; {6 O0 s0 n8 PmNode=TreeView1->Items->AddChild(rNode,"A:");
9 Z9 p' i5 b$ I/ SmNode->ImageIndex=2;
B/ U6 s4 j! h f5 `. o W7 [mNode->SelectedIndex=2; + b2 Q8 x) _; b p4 `; q2 O- r
AddDirectory("A:",mNode); ; b3 Y% A3 t; B0 n
for(int i=1;i<DriveComboBox1->Items->Count;i++)
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V$ _, y# o) I/ z$ R' X4 ImNode=TreeView1->Items->AddChild(rNode,AnsiString(char('B'+i))+":");
2 S. w5 y4 {. {9 Q# D+ \7 ^7 nmNode->ImageIndex=3; ) I5 O/ R+ E( B& T4 Q6 P) ?$ i
mNode->SelectedIndex=3; 8 M9 j) j/ e9 G6 I
AddDirectory(AnsiString(char('B'+i))+":",mNode); ) B" G5 D9 y, B3 J2 H
}
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//------------------------------------------------------------------------
: ^' E4 r% r: v' s3 zvoid TForm1::AddDirectory(AnsiString path,TTreeNode *fNode) & x6 Y5 h: n; v$ ~) u9 R8 B) R z2 M
{
E1 e! M( W$ k8 j: ITSearchRec sr; & h- p, y* X+ s/ \' b# Q, _5 ~
TTreeNode *mNode; `9 ~9 [( B, [! D+ F
if(FindFirst(path+"\\*.*" ,faDirectory,sr)==0)
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- q0 W9 R* @. }9 x6 Qif(sr.Attr==faDirectory)
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% U% F7 A+ s$ mif(sr.Name!="."&&sr.Name!="..")
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mNode=TreeView1->Items->AddChild(fNode,sr.Name); " s$ y0 N f1 ~5 P2 b
mNode->ImageIndex=0; 1 Q0 | P( t+ K& r7 [3 ^6 f
mNode->SelectedIndex=4; " r6 v% x6 u; D* T- Q% c, A
// AddDirectory(path+"\\"+sr.Name,mNode);
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while(FindNext(sr)==0) : \6 n q& g Y" P* g' s# w4 e
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if(sr.Attr==faDirectory)
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if(sr.Name!="."&&sr.Name!="..") ) |8 x; t2 w7 v1 }1 w4 S8 H5 I
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mNode=TreeView1->Items->AddChild(fNode,sr.Name);
. x* m0 `* Q2 a% c4 F U* _mNode->ImageIndex=0;
7 H" |! N+ D0 \mNode->SelectedIndex=4; 7 {' m9 B+ R! h9 j- J& J
// AddDirectory(path+"\\"+sr.Name,mNode);
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FindClose(sr); % V* {1 o1 T6 p2 A f( x' V% e
}
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//--------------------------------------------------------------------
. [6 |$ d; _& \$ o% |void __fastcall TForm1::TreeView1Changing(TObject *Sender, TTreeNode *Node, " g3 |7 W6 @0 [* u- z* o
bool &AllowChange)
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Screen->Cursor=crHourGlass; * A8 I7 x n9 L2 O. q3 Q0 n
TSearchRec sr;
0 L B+ O# n( ~' W3 O# @6 j) E% tTTreeNode *NodeTmp=Node;
0 r$ [6 f/ r" p2 x& zAnsiString DirName,DirTmp;
: }4 p5 i+ E# B& iDirName=Node->Text; * q2 |' K3 g- U2 ^0 Z- Z0 m3 Q
for(int i=Node->Level;i>1;i--) % \% b4 {" }( X% y4 |8 e6 J
{ ( \1 T' D( N* m$ k
NodeTmp=NodeTmp->
arent;
+ F* h% W8 A! z. R, z# hDirTmp=NodeTmp->Text;
$ q6 F0 U4 A' ^if(DirTmp.SubString(DirTmp.Length(),1)!="\\") ; d+ c6 g9 q2 N( {7 C
DirTmp+="\\";
" C. K% E& l" i* K( s5 _! W- xDirName.Insert(DirTmp,0);
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if(DirName.SubString(DirName.Length(),1)!="\\")
7 s, T" A: \: N6 U2 C& rDirName+="\\"; , d9 z! z0 n9 Z( W; E& n$ }1 E: K
for(int j=0;j<Node->Count;j++) # W3 h3 h s/ M. v7 k" X
{
* e" A" d, i2 r$ R# n8 v9 J) dif(Node->Item[j]->Count==0); 5 L0 m4 M2 c/ |- K7 M
{
# V9 v) G2 u& { e* vif (FindFirst(DirName+Node->Item[j]->Text+"\\*.*", faAnyFile, sr) == 0) 7 B- F; k( P. y2 [* t9 x1 z
{
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{
4 V! T, ?; S- Y( Z//Node->Item[j]->ImageIndex=5; " ]5 u: a) S3 ^- ^9 f# }
//Node->Item[j]->SelectedIndex=4; " O& e0 q# T2 p/ G' M
if((sr.Attr&faDirectory)&&sr.Name!="."&&sr.Name!="..")
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% n# d2 d2 d' ~4 a1 T Y( N. LNode->Item[j]->ImageIndex=0;
" K# P; e+ O: d9 r* DNode->Item[j]->SelectedIndex=4;
8 A' f( b5 O- q2 Z6 T9 u" f$ m7 hTreeView1->Items->AddChild(Node->Item[j],sr.Name); 8 t0 t6 E: C, W+ v
}
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while (FindNext(sr)==0); / Z( I6 Z$ V5 ]' p4 O
FindClose(sr);
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}
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/ v# N- l' s0 ?4 z: t: u9 nScreen->Cursor=crDefault; # q. x8 u9 C8 }
}
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