imagegenerator.aspx.cs

来自「10个Visual C#.NET例子」· CS 代码 · 共 59 行

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;

namespace DynamicGraph
{
	/// <summary>
	/// Summary description for ImageGenerator.
	/// </summary>
	public class ImageGenerator : System.Web.UI.Page
	{
		private Graphics g;
		private Bitmap newBitmap;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
			newBitmap=new Bitmap(112,37);
			g=Graphics.FromImage(newBitmap);
			string s=Request.QueryString.GetValues("randomnumber")[0];
			g.DrawString(s,new Font("Arial",15),new SolidBrush(Color.Black),0,0);
			MemoryStream ms=new MemoryStream();
			newBitmap.Save(ms,System.Drawing.Imaging.ImageFormat.Png);
			Response.ClearContent();
			Response.ContentType="image/png";
			Response.BinaryWrite(ms.ToArray());
			Response.End();
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}