我正在编写一个小应用程序,我可以在其中加载文本文件以匹配正则表达式:
我根据匹配行的长度
更改forecolor文本问题是,如果一条线是多线,那么它不能按预期工作,只选择线的一半,例如以“title”开头的第二行,这个:
Title : Kirsty Maccoll - A New England: The Very Best of Kirsty Maccoll
您可以在此处查看问题:
但奇怪的是,如果我调整表单大小让我看到整行,然后我重新键入RegEx,然后它按预期工作并选择整行:
我不知道如何在不调整表单大小的情况下解决此问题。
这是我用来改变forecolor的代码:
Private Sub MatchRegEx()
Label_Matched_Value.Text = "0"
Label_Missed_Value.Text = "0"
If (TextBox_RegEx.Text = "" Or TextBox_RegEx.Text = TextBox_Hint) And RichTextBox_Strings.Text.Length = 0 Then
Label_Info.Text = ""
RichTextBox_Strings.Select(0, RichTextBox_Strings.Text.Length)
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
ElseIf (TextBox_RegEx.Text = "" Or TextBox_RegEx.Text = TextBox_Hint) And RichTextBox_Strings.Text.Length > 0 Then
Label_Info.Text = ""
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
Else
Try
Label_Info.Text = "Valid RegEx"
For i As Integer = 0 To RichTextBox_Strings.Lines.Length - 1
If System.Text.RegularExpressions.Regex.IsMatch(RichTextBox_Strings.Lines(i), RegEx) Then
If Not RichTextBox_Strings.Focused Then
RichTextBox_Strings.Select(RichTextBox_Strings.GetFirstCharIndexFromLine(i), RichTextBox_Strings.Lines(i).Length)
End If
RichTextBox_Strings.SelectionColor = Color.LimeGreen
Label_Matched_Value.Text = CInt(Label_Matched_Value.Text) + 1
Else
If Not RichTextBox_Strings.Focused Then
RichTextBox_Strings.Select(RichTextBox_Strings.GetFirstCharIndexFromLine(i), RichTextBox_Strings.Lines(i).Length)
End If
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
Label_Missed_Value.Text = CInt(Label_Missed_Value.Text) + 1
End If
Next
Catch ex As Exception
Label_Info.Text = "Invalid RegEx"
RichTextBox_Strings.SelectAll()
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
End Try
End If
End Sub
示例文本:
Title : The Upbeats - Primitive Technique
Genre : Drum & Bass
Year : 2013
Page : http://www.mp3crank.com/the-upbeats/primitive-technique.htm
Download: http://potload.com/zj0scbxjuw90
Title : Kirsty Maccoll - A New England: The Very Best of Kirsty Maccoll
Genre : Folk, Pop
Year : 2013
Page : http://www.mp3crank.com/kirsty-maccoll/a-new-england-the-very-best-of-kirsty-maccoll.htm
Download: http://potload.com/ziixpepo07lu
Title : Of Montreal - Young Froth / Taypiss
Genre : Indie, Pop
Year : 2013
Page : http://www.mp3crank.com/of-montreal/young-froth-taypiss.htm
Download: http://potload.com/hyc4okxucnlu
更新:
我调试了问题并且值是正确的:
Line 0 - selected range: 43 length
Line 8 - selected range: 73 length
Line 16 - selected range: 45 length
“标题”行的确切行数和长度(当形式被调整为查看整个行时)。
更新2:
如果我将richtextbox的textfont更改为像5pt这样的小字体(以默认的表单大小显示整行),那么所有内容也按预期工作..
所以这个问题似乎就像当整行显示为多行时,因为整行不符合表格的大小那么它就算多于一行?
如何解决这个问题?
更新3:
如果想测试它,这是完整的来源......
Public Class Form1
#Region " Vars / Properties "
Dim TextBox_Hint As String = "Type your RegEx here..."
Dim MatchRegEx_Flag As Boolean = True
Public Property RegEx() As String
Get
Return TextBox_RegEx.Text
End Get
Set(ByVal value As String)
TextBox_RegEx.Text = value
End Set
End Property
#End Region
#Region " Controls "
' TextBox RegEx [Enter/Leave]
Private Sub TextBox_RegEx_Hint(sender As Object, e As EventArgs) Handles TextBox_RegEx.Enter, TextBox_RegEx.Leave
If sender.Text = TextBox_Hint Then
Label_Info.Text = ""
sender.text = ""
ElseIf sender.Text = "" Then
sender.text = TextBox_Hint
Label_Info.Text = ""
End If
End Sub
' TextBox RegEx [TextChanged]
Private Sub TextBox_RegEx_TextChanged(sender As Object, e As EventArgs) Handles TextBox_RegEx.TextChanged
If MatchRegEx_Flag Then
MatchRegEx_Flag = False
MatchRegEx()
MatchRegEx_Flag = True
End If
End Sub
' Button Copy RegEx [Click]
Private Sub Button_Copy_RegEx_Click(sender As Object, e As EventArgs) Handles Button_Copy_RegEx.Click
Clipboard.SetText(TextBox_RegEx.Text)
End Sub
' Button Copy Matches [Click]
Private Sub Button_Copy_Matches_Click(sender As Object, e As EventArgs) Handles Button_Copy_Matches.Click
Clipboard.SetText(" ")
For i As Integer = 0 To RichTextBox_Strings.Lines.Length - 1
If System.Text.RegularExpressions.Regex.IsMatch(RichTextBox_Strings.Lines(i), RegEx) Then
RichTextBox_Strings.Select(RichTextBox_Strings.GetFirstCharIndexFromLine(i), RichTextBox_Strings.Lines(i).Length)
Clipboard.SetText(Clipboard.GetText & vbNewLine & RichTextBox_Strings.SelectedText)
End If
Next
End Sub
' Button Load [ Click]
Private Sub Button_TextFile_Click(sender As Object, e As EventArgs) Handles Button_TextFile.Click
Dim Textfile As New OpenFileDialog()
Textfile.InitialDirectory = Environ("programfiles")
Textfile.Title = "Load a text from file..."
Textfile.Filter = "Text-files|*.txt"
If Textfile.ShowDialog() = DialogResult.OK Then
RichTextBox_Strings.SuspendLayout()
RichTextBox_Strings.Text = My.Computer.FileSystem.ReadAllText(Textfile.FileName)
RichTextBox_Strings.ResumeLayout()
End If
End Sub
' RichTextBox [MouseHover]
Private Sub RichTextBox_Strings_MouseHover(sender As Object, e As EventArgs) Handles RichTextBox_Strings.MouseHover
'sender.focus()
End Sub
' RichTextBox [TextChanged]
Private Sub RichTextBox_Strings_TextChanged(sender As Object, e As EventArgs) Handles RichTextBox_Strings.TextChanged
If MatchRegEx_Flag Then
MatchRegEx_Flag = False
MatchRegEx()
MatchRegEx_Flag = True
End If
End Sub
#End Region
#Region " Procedures "
Private Sub MatchRegEx()
Label_Matched_Value.Text = "0"
Label_Missed_Value.Text = "0"
If (TextBox_RegEx.Text = "" Or TextBox_RegEx.Text = TextBox_Hint) And RichTextBox_Strings.Text.Length = 0 Then
Label_Info.Text = ""
RichTextBox_Strings.Select(0, RichTextBox_Strings.Text.Length)
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
ElseIf (TextBox_RegEx.Text = "" Or TextBox_RegEx.Text = TextBox_Hint) And RichTextBox_Strings.Text.Length > 0 Then
Label_Info.Text = ""
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
Else
Try
Label_Info.Text = "Valid RegEx"
For i As Integer = 0 To RichTextBox_Strings.Lines.Length - 1
If System.Text.RegularExpressions.Regex.IsMatch(RichTextBox_Strings.Lines(i), RegEx) Then
If Not RichTextBox_Strings.Focused Then
RichTextBox_Strings.Select(RichTextBox_Strings.GetFirstCharIndexFromLine(i), RichTextBox_Strings.Lines(i).Length)
End If
RichTextBox_Strings.SelectionColor = Color.LimeGreen
Label_Matched_Value.Text = CInt(Label_Matched_Value.Text) + 1
Else
If Not RichTextBox_Strings.Focused Then
RichTextBox_Strings.Select(RichTextBox_Strings.GetFirstCharIndexFromLine(i), RichTextBox_Strings.Lines(i).Length)
End If
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
'MsgBox(RichTextBox_Strings.Lines(i))
Label_Missed_Value.Text = CInt(Label_Missed_Value.Text) + 1
End If
Next
Catch ex As Exception
' MsgBox(ex.Message)
Label_Info.Text = "Invalid RegEx"
RichTextBox_Strings.SelectAll()
RichTextBox_Strings.SelectionColor = Color.FromArgb(248, 248, 242)
End Try
End If
End Sub
#End Region
End Class
答案 0 :(得分:2)
wordwrap
属性到富文本框可能会解决您的问题:)
答案 1 :(得分:1)