本文整理汇总了VB.NET中System.Byte.TryParse方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Byte.TryParse方法的具体用法？VB.NET Byte.TryParse怎么用？VB.NET Byte.TryParse使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Byte的用法示例。
在下文中一共展示了Byte.TryParse方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: ByteConversion
Module ByteConversion
Public Sub Main()
Dim byteStrings() As String = { Nothing, String.Empty, "1024",
"100.1", "100", "+100", "-100",
"000000000000000100", "00,100",
" 20 ", "FF", "0x1F"}
For Each byteString As String In byteStrings
CallTryParse(byteString)
Next
End Sub
Private Sub CallTryParse(stringToConvert As String)
Dim byteValue As Byte
Dim success As Boolean = Byte.TryParse(stringToConvert, byteValue)
If success Then
Console.WriteLine("Converted '{0}' to {1}", _
stringToConvert, byteValue)
Else
Console.WriteLine("Attempted conversion of '{0}' failed.", _
stringToConvert)
End If
End Sub
End Module输出：
Attempted conversion of '' failed. Attempted conversion of '' failed. Attempted conversion of '1024' failed. Attempted conversion of '100.1' failed. Converted '100' to 100 Converted '+100' to 100 Attempted conversion of '-100' failed. Converted '000000000000000100' to 100 Attempted conversion of '00,100' failed. Converted ' 20 ' to 20 Attempted conversion of 'FF' failed. Attempted conversion of '0x1F' failed.
示例2: ByteConversion2
' 导入命名空间
Imports System.Globalization
Module ByteConversion2
Public Sub Main()
Dim byteString As String
Dim styles As NumberStyles
byteString = "1024"
styles = NumberStyles.Integer
CallTryParse(byteString, styles)
byteString = "100.1"
styles = NumberStyles.Integer Or NumberStyles.AllowDecimalPoint
CallTryParse(byteString, styles)
byteString = "100.0"
CallTryParse(byteString, styles)
byteString = "+100"
styles = NumberStyles.Integer Or NumberStyles.AllowLeadingSign _
Or NumberStyles.AllowTrailingSign
CallTryParse(byteString, styles)
byteString = "-100"
CallTryParse(byteString, styles)
byteString = "000000000000000100"
CallTryParse(byteString, styles)
byteString = "00,100"
styles = NumberStyles.Integer Or NumberStyles.AllowThousands
CallTryParse(byteString, styles)
byteString = "2E+3 "
styles = NumberStyles.Integer Or NumberStyles.AllowExponent
CallTryParse(byteString, styles)
byteString = "FF"
styles = NumberStyles.HexNumber
CallTryParse(byteString, styles)
byteString = "0x1F"
CallTryParse(byteString, styles)
End Sub
Private Sub CallTryParse(stringToConvert As String, styles As NumberStyles)
Dim byteValue As Byte
Dim result As Boolean = Byte.TryParse(stringToConvert, styles, Nothing, _
byteValue)
If result Then
Console.WriteLine("Converted '{0}' to {1}", _
stringToConvert, byteValue)
Else
If stringToConvert Is Nothing Then stringToConvert = ""
Console.WriteLine("Attempted conversion of '{0}' failed.", _
stringToConvert.ToString())
End If
End Sub
End Module输出：
Attempted conversion of '1024' failed. Attempted conversion of '100.1' failed. Converted '100.0' to 100 Converted '+100' to 100 Attempted conversion of '-100' failed. Converted '000000000000000100' to 100 Converted '00,100' to 100 Attempted conversion of '2E+3 ' failed. Converted 'FF' to 255 Attempted conversion of '0x1F' failed.