C#编程

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Form1.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace TestHarness
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
    private System.Windows.Forms.Button btnGetSel;
    private System.Windows.Forms.Button btnRoot;
    private System.Windows.Forms.TextBox txtRoot;
    private FolderTree.FolderTree folderTree1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}
		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
      this.btnGetSel = new System.Windows.Forms.Button();
      this.btnRoot = new System.Windows.Forms.Button();
      this.txtRoot = new System.Windows.Forms.TextBox();
      this.folderTree1 = new FolderTree.FolderTree();
      ((System.ComponentModel.ISupportInitialize)(this.folderTree1)).BeginInit();
      this.SuspendLayout();
      // 
      // btnGetSel
      // 
      this.btnGetSel.Location = new System.Drawing.Point(216, 32);
      this.btnGetSel.Name = "btnGetSel";
      this.btnGetSel.Size = new System.Drawing.Size(80, 23);
      this.btnGetSel.TabIndex = 1;
      this.btnGetSel.Text = "Get Selected";
      this.btnGetSel.Click += new System.EventHandler(this.btnGetSel_Click);
      // 
      // btnRoot
      // 
      this.btnRoot.Location = new System.Drawing.Point(216, 88);
      this.btnRoot.Name = "btnRoot";
      this.btnRoot.TabIndex = 2;
      this.btnRoot.Text = "Set Root";
      this.btnRoot.Click += new System.EventHandler(this.btnRoot_Click);
      // 
      // txtRoot
      // 
      this.txtRoot.Location = new System.Drawing.Point(192, 136);
      this.txtRoot.Name = "txtRoot";
      this.txtRoot.Size = new System.Drawing.Size(136, 20);
      this.txtRoot.TabIndex = 3;
      this.txtRoot.Text = "";
      // 
      // folderTree1
      // 
      this.folderTree1.ImageIndex = -1;
      this.folderTree1.Location = new System.Drawing.Point(16, 16);
      this.folderTree1.Name = "folderTree1";
      this.folderTree1.SelectedImageIndex = -1;
      this.folderTree1.Size = new System.Drawing.Size(160, 256);
      this.folderTree1.TabIndex = 4;
      // 
      // Form1
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(344, 301);
      this.Controls.Add(this.folderTree1);
      this.Controls.Add(this.txtRoot);
      this.Controls.Add(this.btnRoot);
      this.Controls.Add(this.btnGetSel);
      this.Name = "Form1";
      this.Text = "Form1";
      ((System.ComponentModel.ISupportInitialize)(this.folderTree1)).EndInit();
      this.ResumeLayout(false);
    }
		#endregion
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
    private void btnGetSel_Click(object sender, System.EventArgs e)
    {
      MessageBox.Show(folderTree1.SelectedFolder);
    }
    private void btnRoot_Click(object sender, System.EventArgs e)
    {
      folderTree1.RootFolder = txtRoot.Text;
    }
	}
}

						