Question

我在c＃winform中添加了一些labels和textboxes，我想用我设置的布局打印该表单。

我试过这个

PrintDocument pd = new PrintDocument();
pd.PrintPage += new PrintPageEventHandler(this.Jumbo_Load);

PrintPreviewDialog ppd = new PrintPreviewDialog();
ppd.Document = pd;
ppd.ShowDialog();

但这只是打开一个空白页面。不是我想要的那个。

如果有人可以帮助我，那将非常感激。

另外，我创建了SAP Crystal Report。如果有人可以告诉我如何使用查询过滤某些记录。因为那时，我可以打印那份报告。

Answer 1

我不确定您是否有更多代码，但我有类似情况，如下所示：

PrintDocument pd = new PrintDocument();
pd.PrintPage += new PrintPageEventHandler(this.Jumbo_Load);

PrintPreviewDialog ppd = new PrintPreviewDialog();
ppd.Document = pd;
DialogResult result = ppd.ShowDialog();

if (result == DialogResult.OK) {
    pd.Print();
}

Answer 2

来自MSDN

[System.Runtime.InteropServices.DllImport("gdi32.dll")]
public static extern long BitBlt (IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop);
private Bitmap memoryImage;
private void CaptureScreen()
{
   Graphics mygraphics = this.CreateGraphics();
   Size s = this.Size;
   memoryImage = new Bitmap(s.Width, s.Height, mygraphics);
   Graphics memoryGraphics = Graphics.FromImage(memoryImage);
   IntPtr dc1 = mygraphics.GetHdc();
   IntPtr dc2 = memoryGraphics.GetHdc();
   BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376);
   mygraphics.ReleaseHdc(dc1);
   memoryGraphics.ReleaseHdc(dc2);
}
private void printDocument1_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
   e.Graphics.DrawImage(memoryImage, 0, 0);
}
private void printButton_Click(System.Object sender, System.EventArgs e)
{
   CaptureScreen();
   printDocument1.Print();
}

如何在C＃中打印自定义页面？

2 个答案: