Question

我只需要在打印预览后重置“边框”。我预览了我想要正确打印的页面，但是当我打印时，它会显示空白页面，因为“边框”没有重置。我应该在哪里放“border = 0”？（“border”是数据网格视图中没有的行）

  private void button5_Click(object sender, EventArgs e)
    {
       PrintDocument pd = new PrintDocument();
        pd.PrintPage += new PrintPageEventHandler(this.pd_PrintPage);           
        PrintPreviewDialog ppd = new PrintPreviewDialog();
        ppd.Document = pd;
        ppd.ShowDialog();

    }
  private void pd_PrintPage(object sender, PrintPageEventArgs e)
    {
  prntt(sender, e);
     }
   public void prntt(object sender, PrintPageEventArgs e)
    {
           for (; border < ViewA.RowCount; border++)
        {
            if (ustsin + yuk > e.MarginBounds.Bottom - 400f)
            {

                e.HasMorePages = true;                  

                return;
            }



            texts = ViewA.Rows[border].Cells["Persons"].Value.ToString();
            ...
            graphics.DrawString(texts, font, Brushes.Black, new RectangleF(e.MarginBounds.Left, ustsin, 115f, 90f));               
            ...

            float hoho = (float)e.Graphics.MeasureString(texts, font, 115, StringFormat.GenericTypographic).Height;
            ...
            var mesele = new float[] { hoho, koko, moko };
            float kapa = mesele.OrderByDescending(s => s).First();

            ustsin += kapa + yuk;             

        }            

        e.HasMorePages = false;
     }

如果我在打印预览中按下打印按钮时可以关闭，我可以在结束事件中重置吗？

编辑：我做了这个，似乎工作但是当我发送到xps时，它在屏幕上显示2个页面。像这样http://i.imgur.com/a9KnkA0.png。如何将此节目制作1页？

    private void printDocument1_EndPrint(object sender, PrintEventArgs e)
    {


        border = 0;
    }

Answer 1

最初将其设置为0并在ppd.ShowDialog();

之后重置

ppd.ShowDialog();
border = 0;

更新

看起来PrintPreviewDialog并不像你（以及其他许多人所期望的那样）支持太多，这取决于用户（而不是程序员）。你可以试试这个有点hacky的东西：

//code in your button5_Click
ToolStripButton onePageButton = ((ToolStrip)ppd.Controls[1]).Items[3] as ToolStripButton;
BeginInvoke((Action)(() => onePageButton.PerformClick()));
ppd.ShowDialog();

更新

要截取Clicking上的Print button，您必须添加更多代码。您必须在项目（打印按钮）上触发Click之前检测到点击，如果用户同意，则显示要求确认的消息框和re-click项目。以下是您的代码：

//Use this class to add message interceptor into your ToolStrip message loop
public class NativeToolStrip : NativeWindow {
    ToolStrip ts;
    bool letClicked;
    protected override void OnHandleChange() {
        base.OnHandleChange();
        Control c = Control.FromHandle(Handle);
        ts = c as ToolStrip;
    }
    protected override void WndProc(ref Message m) {                
      if (m.Msg == 0x202&&!letClicked) {//WM_LBUTTONUP = 0x202
           int x = m.LParam.ToInt32() & 0x00ff;
           int y = m.LParam.ToInt32() >> 16;
           ToolStripItem item = ts.GetItemAt(new Point(x, y));                    
           //check if the first item (the Print Button) is clicked
           if (item != null && ts.Items.IndexOf(item) == 0) {
             if (MessageBox.Show("Do you want to print?", "Print confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
                 return;//discard message
             else {
                    letClicked = true;
                    item.PerformClick();
              }
            }
       }
       base.WndProc(ref m);
       if (letClicked) letClicked = false;
    }
}
//This code should be done somewhere like in your form constructor
//BUT your PrintPreviewDialog should also be declared once in the form scope
//You can also place this in your button5_Click BUT it's not recommended
ToolStrip ts = (ToolStrip)ppd.Controls[1];
new NativeToolStrip().AssignHandle(ts.Handle);

防止打印空白页

1 个答案:

更新

更新