本文整理匯總了VB.NET中System.IO.TextReader類的典型用法代碼示例。如果您正苦於以下問題：VB.NET TextReader類的具體用法？VB.NET TextReader怎麽用？VB.NET TextReader使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了TextReader類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: result
' 導入命名空間
Imports System.Text
Imports System.IO
Class MainWindow
Private Async Sub Button_Click_1(sender As Object, e As RoutedEventArgs)
Dim filename As String = "C:\Example\existingfile.txt"
Dim result() As Char
Dim builder As StringBuilder = New StringBuilder()
Using reader As StreamReader = File.OpenText(filename)
ReDim result(reader.BaseStream.Length)
Await reader.ReadAsync(result, 0, reader.BaseStream.Length)
End Using
For Each c As Char In result
If (Char.IsLetterOrDigit(c) Or Char.IsWhiteSpace(c)) Then
builder.Append(c)
End If
Next
FileOutput.Text = builder.ToString()
End Sub
End Class