关于打印winform窗口的问题，求助

LAST_MAN 2013-03-12 08:43:31

在winform界面上添加了个groupBox1，如下图

然后按打印预览，却出现这样

代码如下



 public partial class print : Form

    {

        public print()

        {

            InitializeComponent();

            this.printDocument1.OriginAtMargins = true;//启用页边距

            this.pageSetupDialog1.EnableMetric = true; //以毫米为单位





        }



        private void button3_Click(object sender, EventArgs e)   //打印设置

        {

            this.pageSetupDialog1.ShowDialog(); 



        }



        private void button2_Click(object sender, EventArgs e)   //打印

        {

            if (this.printDialog1.ShowDialog() == DialogResult.OK)

            {

                this.printDocument1.Print();

            }



        }



        private void button1_Click(object sender, EventArgs e)   //打印预览

        {

            printDialog1.Document = printDocument1;

            this.printPreviewDialog1.ShowDialog();

            

            

       

        }



        private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)

        {



            ////打印内容 为 整个Form

            //Image myFormImage;

            //myFormImage = new Bitmap(this.Width, this.Height);

            //Graphics g = Graphics.FromImage(myFormImage);

            //g.CopyFromScreen(this.Location.X, this.Location.Y, 0, 0, this.Size);

            //e.Graphics.DrawImage(myFormImage, 0, 0);



            //打印内容 为 局部的 this.groupBox1

            Bitmap _NewBitmap = new Bitmap(groupBox1.Width, groupBox1.Height);

            groupBox1.DrawToBitmap(_NewBitmap, new Rectangle(0, 0, _NewBitmap.Width, _NewBitmap.Height));

            e.Graphics.DrawImage(_NewBitmap, 0, 0, _NewBitmap.Width, _NewBitmap.Height);



            ////打印内容 为 自定义文本内容 

            //Font font = new Font("宋体", 12);

            //Brush bru = Brushes.Blue;

            //for (int i = 1; i <= 5; i++)

            //{

            //    e.Graphics.DrawString("Hello world ", font, bru, i * 20, i * 20);

            //}

        }