Reporting Service报表水印的添加

上一篇文章寫到了自帶報表的製作，現在來談談報表水印的添加

1：水印產生代碼

using System;

using System.Data;

using System.Configuration;

using System.Drawing;

using System.Drawing.Imaging;

/// <summary>

/// WatermarkCreater 的摘要描述

/// </summary>

public class WatermarkCreater

{

    public WatermarkCreater()

    {

        //

        // TODO: 在此加入建構函式的程式碼

        //

    }

    private Bitmap CreateImage(string code, string width, string height, string pLeft, string pTop, string font, string fColor, string bColor, string r)

    {

        Color cF = Color.FromArgb(int.Parse(fColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier), int.Parse(fColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier), int.Parse(fColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier));

        Color cB = Color.FromArgb(int.Parse(bColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier), int.Parse(bColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier), int.Parse(bColor.Substring(, ), System.Globalization.NumberStyles.AllowHexSpecifier));

        System.Drawing.SolidBrush sb = new SolidBrush(cF);

        string[] fstr = font.Split(',');

        Font f = new Font(fstr[].Split('=')[], (float)Convert.ToInt32(fstr[].Split('=')[]), FontStyle.Regular, (GraphicsUnit)Convert.ToInt32(fstr[].Split('=')[]), Convert.ToByte(fstr[].Split('=')[]), Convert.ToBoolean(fstr[].Split('=')[]));

        Bitmap bmp = new Bitmap(Convert.ToInt32(width), Convert.ToInt32(height));

        Graphics g = Graphics.FromImage(bmp);

        g.Clear(Color.White);

        g.RotateTransform((float)Convert.ToDouble(r));

        g.DrawString(code, f, sb, new PointF(Convert.ToInt32(pLeft), Convert.ToInt32(pTop)));

        return bmp;

    }

    public byte[] GetImageByte(string code, string config)

    {

        string[] configs = config.Split(';');

        Bitmap im = CreateImage(code, configs[].Split(':')[], configs[].Split(':')[], configs[].Split(':')[], configs[].Split(':')[], configs[], configs[].Split(':')[], configs[].Split(':')[], configs[].Split(':')[]);

        System.IO.MemoryStream ms = new System.IO.MemoryStream();

        im.Save(ms, ImageFormat.Bmp);

        return ms.GetBuffer();

    }

}

2：把水印保存到數據庫，數據庫類型為image

3:把水印查詢出來，作為數據源傳進報表，然後在報表的背景添加即可