VB.NET Enum.TryParse方法代碼示例

本文整理匯總了VB.NET中System.Enum.TryParse方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Enum.TryParse方法的具體用法？VB.NET Enum.TryParse怎麽用？VB.NET Enum.TryParse使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Enum的用法示例。

在下文中一共展示了Enum.TryParse方法的2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: Example

<Flags> Enum Colors As Integer
   None = 0
   Red = 1
   Green = 2
   Blue = 4
End Enum

Module Example
   Public Sub Main()
      Dim colorStrings() As String = {"0", "2", "8", "blue", "Blue", "Yellow", "Red, Green"}
      For Each colorString As String In colorStrings
         Dim colorValue As Colors
         If [Enum].TryParse(colorString, True, colorValue) Then        
            If [Enum].IsDefined(GetType(Colors), colorValue) Or colorValue.ToString().Contains(",") Then 
               Console.WriteLine("Converted '{0}' to {1}.", colorString, colorValue.ToString())
            Else
               Console.WriteLine("{0} is not an underlying value of the Colors enumeration.", colorString)            
            End If                    
         Else
            Console.WriteLine("{0} is not a member of the Colors enumeration.", colorString)
         End If
      Next
   End Sub
End Module

開發者ID:VB.NET開發者，項目名稱:System，代碼行數:24，代碼來源:Enum.TryParse

輸出：

Converted '0' to None.
Converted '2' to Green.
8 is not an underlying value of the Colors enumeration.
Converted 'blue' to Blue.
Converted 'Blue' to Blue.
Yellow is not a member of the Colors enumeration.
Converted 'Red, Green' to Red, Green.

示例2: Example

<Flags> Enum Colors As Integer
   None = 0
   Red = 1
   Green = 2
   Blue = 4
End Enum

Module Example
   Public Sub Main()
      Dim colorStrings() As String = {"0", "2", "8", "blue", "Blue", "Yellow", "Red, Green"}
      For Each colorString As String In colorStrings
         Dim colorValue As Colors
         If [Enum].TryParse(colorString, colorValue) Then        
            If [Enum].IsDefined(GetType(Colors), colorValue) Or colorValue.ToString().Contains(",") Then 
               Console.WriteLine("Converted '{0}' to {1}.", colorString, colorValue.ToString())
            Else
               Console.WriteLine("{0} is not an underlying value of the Colors enumeration.", colorString)            
            End If                    
         Else
            Console.WriteLine("{0} is not a member of the Colors enumeration.", colorString)
         End If
      Next
   End Sub
End Module

開發者ID:VB.NET開發者，項目名稱:System，代碼行數:24，代碼來源:Enum.TryParse

輸出：

Converted '0' to None.
Converted '2' to Green.
8 is not an underlying value of the Colors enumeration.
blue is not a member of the Colors enumeration.
Converted 'Blue' to Blue.
Yellow is not a member of the Colors enumeration.
Converted 'Red, Green' to Red, Green.

注：本文中的System.Enum.TryParse方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。