10. 以下面代碼替代系統產生的InitializeComponent過程，下列代碼的作用是初始化程序中的組件，並定義treeVIEw1組件的DoubleClick事件：
private void InitializeComponent ( )
{
this.treeView1 = new System.Windows.Forms.TreeVIEw ( ) ;
this.button1 = new System.Windows.Forms.Button ( ) ;
this.SuspendLayout ( ) ;
this.treeVIEw1.ImageIndex = -1;
this.treeVIEw1.Location = new System.Drawing.Point ( 16 , 8 ) ;
this.treeView1.Name = "treeVIEw1" ;
this.treeVIEw1.SelectedImageIndex = -1 ;
this.treeVIEw1.Size = new System.Drawing.Size ( 316 , 302 ) ;
this.treeVIEw1.TabIndex = 0 ;
this.treeView1.DoubleClick += new System.EventHandler ( this.treeVIEw1_DoubleClick ) ;
this.button1.Location = new System.Drawing.Point ( 118 , 324 ) ;
this.button1.Name = "button1" ;
this.button1.Size = new System.Drawing.Size ( 82 , 34 ) ;
this.button1.TabIndex = 1 ;
this.button1.Text = "獲取" ;
this.button1.Click += new System.EventHandler ( this.button1_Click ) ;
this.AutoScaleBaseSize = new System.Drawing.Size ( 6 , 14 ) ;
this.ClIEntSize = new System.Drawing.Size ( 350 , 369 ) ;
this.Controls.Add ( this.button1 ) ;
this.Controls.Add ( this.treeVIEw1 ) ;
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle ;
this.MaximizeBox = false ;
this.Name = "Form1" ;
this.Text = "Visual C#構建網絡計算機樹形圖" ;
this.ResumeLayout ( false ) ;
}
至此【Visual C#構建網絡計算機樹形圖】項目的界面設計和功能實現的准備工作就完成了，設計後的界面如圖01所示：
圖01：【Visual C#構建網絡計算機樹形圖】項目的設計界面
11. 用下列代碼替換Form1.cs中的button1的Click事件對應的處理代碼，下列代碼讀取網絡中域或工作組，並加入到樹形圖中：
private void button1_Click ( object sender , System.EventArgs e )
{
foreach ( DirectoryEntry child in entryPC.Children )
{
TreeNode node = new TreeNode ( ) ;
node.Text = child.Name ;
treeVIEw1.Nodes.Add ( node ) ;
//在treeVIEw1組件中添加節點
}
//利用foreach語句實現對網絡域和工作組的遍歷，
//並通過treeVIEw1組件顯示出來
}
