从文本框中将文本打印到纸上

Question

我的 new Rectangle() 出现了一些编译错误 - 我有一个 windows 表单，其中有几个供用户输入的文本框和一个用于打印预览的按钮。当按下按钮进行打印预览时，我希望当前的 windows 表单显示在页面上。我正在尝试对文本框中的值进行编码，以显示在左上角，直接显示在页面下半部分打印的图像上方。这是我的语法，但出现多个编译错误。我设置错了什么？我觉得将文本从 win 表单写入打印文档应该相当简单，但我失败了！

private void btnPreview_Click(object sender, EventArgs e)
{
  PrintPreviewDialog PrintPreviewDlg = new PrintPreviewDialog();

  PrintPreviewDlg.ClientSize = new System.Drawing.Size(400, 300);
  PrintPreviewDlg.Location = new System.Drawing.Point(29, 29);
  PrintPreviewDlg.Name = "PrintPreviewDlg";

  PrintPreviewDlg.MinimumSize = new System.Drawing.Size(375, 250);

  PrintPreviewDlg.WindowState = FormWindowState.Maximized;
  PrintPreviewDlg.UseAntiAlias = true;

  dynamic printData = CreatePrintDocument();
  printData.DefaultPageSettings.Landscape = true;
  PrintPreviewDlg.Document = printData;
  PrintPreviewDlg.ShowDialog();
}

printData CreatePrintDocument()
{
  printData document = new printData();
  document.SetParentCtrl(this);
  document.PrintData.txtAssignmentName = MainInstance.txtAssignmentName.Text;
  document.PrintData.txtAssignmentNumber = MainInstance.txtAssignmentNumber.Text;
  document.PrintData.txtPreparedBy = MainInstance.txtPreparedBy.Text;
  document.PrintData.txtAssignmentSection = MainInstance.txtAssignmentSection.Text;
  document.PrintData.DocumentName = "Testing Print Functionality";

  return document;
}


class printData : PrintDocument
{  
  Size m_SubHeaderTextFieldSize;
  int m_NormalRowHeight = 0;
  class DataToPrintData
  {
      public string txtAssignmentName, txtAssignmentNumber, txtPreparedBy, txtAssignmentSection;
  }
  protected override void OnPrintPage(PrintPageEventArgs e)
  {
    //More print specs here
    int LeftSubHeadingWidth = 200;
    m_SubHeaderTextFieldSize = new Size(LeftSubHeadingWidth, m_NormalRowHeight);
    string printData = "Project Name: " + projectNumberTitle + System.Environment.NewLine +
               "Prepared By: " + txtPreparedBy + System.Environment.NewLine +
               "Assignment Section: " + txtAssignmentSection + System.Environment.NewLine;

    e.Graphics.DrawString(e, new Font("Times New Roman", 12), new SolidBrush(Color.Black), new RectangleF(0,0, m_SubHeaderTextFieldSize, StringAlignment.Near);
  }
}

Answer 1

new RectangleF(0,0, m_SubHeaderTextFieldSize, StringAlignment.Near) 看来您向 RectangleF 的构造函数提供了错误的参数。有 2 个重载 - 首先接受一个 PointF 和一个你可以这样称呼它的大小：
new RectangleF(new PointF(0f,0f), m_SubHeaderTextFieldSize)
另外一个4分，这样称呼：
new RectangleF(0f,0f, m_SubHeaderTextFieldSize.Width, m_SubHeaderTextFieldSize.Height)
任何看起来 StringAlignment.Near 与 e.Graphics.DrawString 函数相关的方式...

Answer 2

试试这个代码：

var format = new StringFormat {Alignment = StringAlignment.Near};
e.Graphics.DrawString(
    printData, 
    new Font("Times New Roman", 12), 
    new SolidBrush(Color.Black), 
    new RectangleF(new PointF(0, 0), m_SubHeaderTextFieldSize), 
    format);

从文本框中将文本打印到纸上

Printing Text To Paper From Text Boxes

c#

printing

printdocument

winforms