前田稔(Maeda Minoru)の超初心者のプログラム入門
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/*★ Handler Tree & List の基本設定 前田 稔 ★*/
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using System;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Management;
public class MyForm : Form
{
private SplitContainer splitContainer1;
private TreeView treeView1;
private ListView listView1;
int[] width = { 320, 120, 80, 40 };
string[] head = { "名前", "更新日付", "サイズ", "種類" };
ImageList imageListSmall = new ImageList();
string[] iconFiles =
{ "C:\\DATA\\Test\\null.ico", "C:\\DATA\\Test\\folder.ico",
"C:\\DATA\\Test\\fdd.ico", "C:\\DATA\\Test\\hdd.ico",
"C:\\DATA\\Test\\cd.ico", "C:\\DATA\\Test\\remove.ico"
};
public string Sel_Dir = "";
public MyForm()
{ InitializeComponent();
Load += new System.EventHandler(MyForm_Load);
}
private void InitializeComponent()
{
this.splitContainer1 = new System.Windows.Forms.SplitContainer();
this.treeView1 = new System.Windows.Forms.TreeView();
this.listView1 = new System.Windows.Forms.ListView();
this.splitContainer1.Panel1.SuspendLayout();
this.splitContainer1.Panel2.SuspendLayout();
this.splitContainer1.SuspendLayout();
this.SuspendLayout();
// splitContainer1
this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
this.splitContainer1.Location = new System.Drawing.Point(0, 0);
this.splitContainer1.Name = "splitContainer1";
// splitContainer1.Panel1
this.splitContainer1.Panel1.Controls.Add(this.treeView1);
// splitContainer1.Panel2
this.splitContainer1.Panel2.Controls.Add(this.listView1);
this.splitContainer1.Size = new System.Drawing.Size(764, 400);
this.splitContainer1.SplitterDistance = 195;
this.splitContainer1.TabIndex = 0;
// treeView1
this.treeView1.BackColor = System.Drawing.SystemColors.ControlLightLight;
this.treeView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.treeView1.Location = new System.Drawing.Point(0, 0);
this.treeView1.Name = "treeView1";
this.treeView1.Size = new System.Drawing.Size(195, 400);
this.treeView1.TabIndex = 0;
this.treeView1.BeforeExpand +=
new System.Windows.Forms.TreeViewCancelEventHandler(this.treeView1_BeforeExpand);
this.treeView1.AfterSelect +=
new System.Windows.Forms.TreeViewEventHandler(this.treeView1_AfterSelect);
// listView1
this.listView1.BackColor = System.Drawing.SystemColors.ControlLight;
this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.listView1.FullRowSelect = true;
this.listView1.GridLines = true;
this.listView1.Location = new System.Drawing.Point(0, 0);
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(565, 400);
this.listView1.TabIndex = 0;
this.listView1.UseCompatibleStateImageBehavior = false;
this.listView1.View = System.Windows.Forms.View.Details;
// MyForm
this.ClientSize = new System.Drawing.Size(764, 400);
this.Controls.Add(this.splitContainer1);
this.Name = "MyForm";
this.splitContainer1.Panel1.ResumeLayout(false);
this.splitContainer1.Panel2.ResumeLayout(false);
this.splitContainer1.ResumeLayout(false);
this.ResumeLayout(false);
}
// アプリケーションの初期化
private void MyForm_Load(object sender, System.EventArgs e)
{
//List View にカラムを設定
ColumnHeader[] columnHead = new ColumnHeader[width.GetLength(0)];
for (int i=0; i<width.GetLength(0); i++)
{ columnHead[i] = new ColumnHeader();
columnHead[i].Width = width[i];
columnHead[i].Text = head[i];
}
listView1.Columns.AddRange(columnHead);
//ImageList の作成
imageListSmall.ImageSize = new Size(16, 16);
listView1.SmallImageList = imageListSmall;
treeView1.ImageList = imageListSmall;
imageListSmall.Images.Clear();
for (int i = 0; i < iconFiles.GetLength(0); i++)
{ imageListSmall.Images.Add(new Bitmap(iconFiles[i])); }
//Tree にマイコンピュータとドライブ一覧を登録
treeView1.Nodes.Clear();
TreeNodeEx tne = new TreeNodeEx("マイ コンピュータ");
string[] drives = Directory.GetLogicalDrives();
foreach (string drive in drives)
{
string drive2 = drive.Substring(0, 2); // 先頭２文字(C:)
ManagementObject disk =
new ManagementObject("win32_logicaldisk.deviceid=\"" + drive2 + "\"");
disk.Get();
TreeNodeEx tn = new TreeNodeEx(drive);
if (drive2=="A:")
tn.ImageIndex = tn.SelectedImageIndex = 2;
else if (disk["DriveType"].ToString()=="3")
tn.ImageIndex = tn.SelectedImageIndex = 3;
else if (disk["DriveType"].ToString()=="5")
tn.ImageIndex = tn.SelectedImageIndex = 4;
else if (disk["DriveType"].ToString()=="2")
tn.ImageIndex = tn.SelectedImageIndex = 5;
else
tn.ImageIndex = tn.SelectedImageIndex = 1;
tne.Nodes.Add(tn);
}
tne.SubFoldersAdded = true;
treeView1.Nodes.Add(tne);
treeView1.TopNode.Expand();
}
// List View にノード(Item)を設定
private void SetList(string path)
{
if (!Directory.Exists(path)) // ディレクトリが存在しない
{ MessageBox.Show(path + " にメディアを挿入してください。");
return;
}
listView1.Items.Clear();
DirectoryInfo di = new DirectoryInfo(path); //パスを指定
string[] item = new string[4];
try
{
//ディレクトリ一覧の取得
DirectoryInfo[] dis = di.GetDirectories("*.*"); //パターンを指定
for (int i = 0; i < dis.Length; i++)
{ item[0] = dis[i].Name;
item[1] = dis[i].LastWriteTime.ToString();
item[2] = "";
item[3] = "";
listView1.Items.Add(new ListViewItem(item));
listView1.Items[i].ImageIndex = 1;
}
//List にファイル一覧を登録
FileInfo [] fis = di.GetFiles("*.*");
for(int i=0; i<fis.Length; i++)
{ item[0] = fis[i].Name;
item[1] = fis[i].LastWriteTime.ToString();
item[2] = fis[i].Length.ToString();
item[3] = fis[i].Extension;
listView1.Items.Add(new ListViewItem(item));
Icon appIcon = System.Drawing.Icon.ExtractAssociatedIcon(fis[i].FullName);
listView1.Items[listView1.Items.Count-1].ImageIndex = imageListSmall.Images.Count;
imageListSmall.Images.Add(appIcon);
}
}
catch(Exception)
{ Console.WriteLine("アクセス権 or ERROR: " + path); }
}
// SubFoldersAdded == false のノードを展開
// 1つ下の階層のすべてのノードに対して、子ノードが追加済みでない場合それを追加します。
private void treeView1_BeforeExpand(object sender, TreeViewCancelEventArgs e)
{
TreeNodeEx node = (TreeNodeEx)e.Node;
foreach (TreeNodeEx child in node.Nodes)
{
if (child.SubFoldersAdded == false)
{
string path = GetPathFromNode(child);
try
{
DirectoryInfo di = new DirectoryInfo(path);
if(di.Exists)
{
DirectoryInfo[] dirs = di.GetDirectories();
foreach (DirectoryInfo dir in dirs)
{
TreeNodeEx nd = new TreeNodeEx(dir.Name);
nd.ImageIndex = 1 ; // 閉じたフォルダアイコン
nd.SelectedImageIndex = 1 ; // 開いたフォルダアイコン
child.Nodes.Add(nd);
}
child.SubFoldersAdded = true;
}
}
catch(Exception)
{ }
}
}
}
// Tree View の選択が変更された時の処理
private void treeView1_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
{
if (Sel_Dir==string.Empty)
Sel_Dir = System.Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
else Sel_Dir = GetPathFromNode(e.Node);
SetList(Sel_Dir);
if (listView1.Items.Count >= 1) //ListView に focus する
{ listView1.Items[0].Selected = true ;
listView1.Items[0].Focused = true ;
}
}
// ノードからパスを取得します。
private string GetPathFromNode(TreeNode node)
{
if (node.Parent == null)
{ return node.Text; }
return Path.Combine(GetPathFromNode(node.Parent), node.Text);
}
}
// サブフォルダーフラグを使った TreeNodeEx
public class TreeNodeEx : System.Windows.Forms.TreeNode
{
private bool isSubFoldersAdded;
public TreeNodeEx(string text) : base(text)
{ InitializeComponent(); }
private void InitializeComponent()
{ isSubFoldersAdded = false; }
public bool SubFoldersAdded
{
get
{ return isSubFoldersAdded; }
set
{ isSubFoldersAdded = value; }
}
}
class form01
{
public static void Main()
{
MyForm mf = new MyForm();
Application.Run(mf);
}
}
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