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RichTextBox RTF问题

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我在Win窗体应用程序中有一个RichTextBox，具有粗体，斜体，对齐等选项等格式化工具，右键单击RTB打开ContexttoolStripmenu，可以选择从数据库插入客户端地址，在RTB文本中插入字符串 "$[ClientAddress]" . 单击保存按钮时， $[ClientAddress] 将替换为数据库中的实际地址（采用rtf格式，如下所示：

string rtfText = richTextBox.Rtf;
rtfText = rtfText.Replace("$[ClientAddress]", $address);

这里的问题是，当它被来自数据库的实际地址字符串（rtf格式）替换时，在富文本框中的“$ [ClientAddress]”上完成的所有形成/样式都将丢失 .

我们如何将$ [ClientAddress]上的样式（格式化）传递给替换$ [ClientAddress]的文本 .

如果地址作为纯文本而不是数据库中的rtf文本传递，则格式化将保持不变，但不同地址行之间的换行符将丢失，并且地址将在一条直线上打印，如：

39 East Tamaki Road, Papatoetoe, Auckland, New Zealand instead of the correct way as below as originally entered :
39 East Tamaki Road
Papatoetoe
Auckland
New Zealand

我希望我能够清楚地解决问题 .

c# winforms richtextbox

1 回答

  • 0

    您是否考虑过从剪贴板中删除它的旧粘贴？

    下面是winform上的概念验证，其中包含richtextbox（rtb1）和一个按钮（button1） . 对不起，它在VB ...

    Public Class Form1

  Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click

    ' This Richtextbox just to create the text that's in the database.

    Dim rtb2 As New RichTextBox

    rtb2.Text = "39 East Tamaki Road" & vbCrLf & "Papatoetoe" & vbCrLf & "Auckland, New Zealand"
    rtb2.SelectAll()
    rtb2.SelectionFont = New Font("Courier", 20)
    rtb2.SelectionColor = Color.Blue


    ' This would be Clipboard.SetData(TextDataFormat.Rtf, $address)

    Clipboard.SetData(TextDataFormat.Rtf, rtb2.SelectedRtf)

    rtb2.DeselectAll()
    rtb2.Clear()


    ' This is adding text to an existing richtextbox and then pasting in the replacement text.
    Dim sPlaceHolder As String = "$[ClientAddress]"

    rtb1.Clear()

    rtb1.Text = "This is some random text plus the whole " & vbCrLf & sPlaceHolder & vbCrLf & "Place holder above."
    rtb1.SelectAll()
    rtb1.SelectionFont = New Font("Arial", 10)
    rtb1.SelectionColor = Color.DarkRed
    rtb1.DeselectAll()

    Dim istart As Integer = rtb1.Find(sPlaceHolder)
    Dim ilength As Integer = sPlaceHolder.Length

    rtb1.SelectionStart = istart
    rtb1.SelectionLength = ilength

    rtb1.SelectedRtf = Clipboard.GetData(TextDataFormat.Rtf)


  End Sub
End Class
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