form1.cs

VC++的经典教案

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;

namespace WindowsApplication1
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Button button1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(184, 48);
			this.textBox1.Name = "textBox1";
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.Location = new System.Drawing.Point(24, 56);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(144, 32);
			this.label1.TabIndex = 1;
			this.label1.Text = "请输入文件路径";
			this.label1.Click += new System.EventHandler(this.label1_Click);
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label2.Location = new System.Drawing.Point(48, 112);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(192, 40);
			this.label2.TabIndex = 2;
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(88, 184);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(96, 40);
			this.button1.TabIndex = 3;
			this.button1.Text = "检查";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(10, 22);
			this.ClientSize = new System.Drawing.Size(336, 261);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.textBox1);
			this.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void label1_Click(object sender, System.EventArgs e)
		{
		
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			try
			{
				if(File.Exists(textBox1.Text))
				{ label2.Text="该文件存在";}
				else
					label2.Text="该文件不存在";}
			//catch(Exception ee)
			//{label2.Text="失败"+ee.ToString();}
			finally{MessageBox.Show("谢谢您使用本软件!");};
		}

		private void textBox1_TextChanged(object sender, System.EventArgs e)
		{
		
		}
		}
	}