Ka_0O的专栏

//Set visible map extents map.Center = new SharpMap.Geometries.Point(centerX, centerY); map.Zoom = Zoom; //Generate map System.Drawing.Bitmap img = (System.Drawing.Bitmap)map.GetMap(); //Stream the image to the client context.Response.ContentType = "image/png"; System.IO.MemoryStream MS = new System.IO.MemoryStream(); img.Save(MS, System.Drawing.Imaging.ImageFormat.Png); // tidy up img.Dispose(); byte[] buffer = MS.ToArray(); context.Response.OutputStream.Write(buffer, 0, buffer.Length); public SharpMap.Styles.VectorStyle GetChartingStyle(SharpMap.Data.FeatureDataRow row) { SharpMap.Styles.VectorStyle style = new SharpMap.Styles.VectorStyle(); int numMale = int.Parse(row["male"].ToString()); int numFemale = int.Parse(row["female"].ToString()); style.Symbol = this.GetChart(numMale, numFemale); return style; }

protected void Page_Load(object sender, EventArgs e) { VryImgGen gen = new VryImgGen(); string verifyCode = gen.CreateVerifyCode(5, 1); Session["VerifyCode"] = verifyCode.ToUpper(); System.Drawing.Bitmap bitmap = gen.CreateImage(verifyCode); System.IO.MemoryStream ms = new System.IO.MemoryStream(); bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png); Response.Clear(); Response.ContentType = "image/Png"; Response.BinaryWrite(ms.GetBuffer()); bitmap.Dispose(); ms.Dispose(); ms.Close(); Response.End(); }

通过一个简单的例子来演示基于NHibernate的三层结构应用程序开发过程