form1.cs

来自「Sams Teach Yourself C# Web Programming i」· CS 代码 · 共 101 行

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

namespace Object_Example
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnDraw;
		/// <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.btnDraw = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// btnDraw
			// 
			this.btnDraw.Location = new System.Drawing.Point(112, 120);
			this.btnDraw.Name = "btnDraw";
			this.btnDraw.TabIndex = 0;
			this.btnDraw.Text = "Draw";
			this.btnDraw.Click += new System.EventHandler(this.btnDraw_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(292, 266);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.btnDraw});
			this.Name = "Form1";
			this.Text = "Object Example";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void btnDraw_Click(object sender, System.EventArgs e)
		{
			System.Drawing.Graphics objGraphics = null;
			objGraphics = CreateGraphics();
			objGraphics.Clear(System.Drawing.SystemColors.Control);
			objGraphics.DrawLine(System.Drawing.Pens.Chartreuse, 0, 0, 
				this.DisplayRectangle.Width, this.DisplayRectangle.Height);
			objGraphics.Dispose();


		}
	}
}