BooleanSwitch 建構函式

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

public:
 BooleanSwitch(System::String ^ displayName, System::String ^ description);

public BooleanSwitch(string displayName, string? description);

public BooleanSwitch(string displayName, string description);

new System.Diagnostics.BooleanSwitch : string * string -> System.Diagnostics.BooleanSwitch

Public Sub New (displayName As String, description As String)

參數

範例

以下範例建立 並 BooleanSwitch 利用開關判斷是否要列印錯誤訊息。 參數會在類別層級建立。 該 Main 方法將其位置傳給 MyMethod，該會印出錯誤訊息及錯誤發生的位置。

// Class level declaration.
/* Create a BooleanSwitch for data.*/
static BooleanSwitch dataSwitch = new BooleanSwitch("Data", "DataAccess module");

static public void MyMethod(string location)
{
    //Insert code here to handle processing.
    if (dataSwitch.Enabled)
        Console.WriteLine("Error happened at " + location);
}

public static void Main(string[] args)
{
    //Run the method which writes an error message specifying the location of the error.
    MyMethod("in Main");
}

' Class level declaration.
' Create a BooleanSwitch for data. 
Private Shared dataSwitch As New BooleanSwitch("Data", "DataAccess module")


Public Shared Sub MyMethod(location As String)
    ' Insert code here to handle processing.
    If dataSwitch.Enabled Then
        Console.WriteLine(("Error happened at " + location))
    End If
End Sub

' Entry point which delegates to C-style main function.
Public Overloads Shared Sub Main()
    Main(System.Environment.GetCommandLineArgs())
End Sub
 
Overloads Public Shared Sub Main(args() As String)
    ' Run the method which writes an error message specifying the location of the error.
    MyMethod("in Main")
End Sub

備註

當你建立 BooleanSwitch 時，displayName 參數會用來在應用程式設定檔中找到 .NET Framework 應用程式的初始切換設定。 如果建構子找不到初始設定，或對於 .NET Core 和 .NET 5+ 應用程式，Enabled 屬性會被設定為 false（停用）。

要在 .NET Framework 應用程式中設定你的 BooleanSwitch 等級，請編輯與應用程式名稱對應的設定檔。 在這個檔案中，你可以新增一個開關並設定其值、移除開關，或清除應用程式先前設定的所有開關。 設定檔格式應如以下範例：

<configuration>
    <system.diagnostics>
       <switches>
          <add name="mySwitch" value="10" />
          <add name="myNewSwitch" value="20" />
          <remove name="mySwitch" />
          <clear/>
       </switches>
    </system.diagnostics>
 </configuration>

另請參閱

• BooleanSwitch
• Switch
• Debug
• Trace

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

來源:

BooleanSwitch.cs

public:
 BooleanSwitch(System::String ^ displayName, System::String ^ description, System::String ^ defaultSwitchValue);

public BooleanSwitch(string displayName, string? description, string defaultSwitchValue);

public BooleanSwitch(string displayName, string description, string defaultSwitchValue);

new System.Diagnostics.BooleanSwitch : string * string * string -> System.Diagnostics.BooleanSwitch

Public Sub New (displayName As String, description As String, defaultSwitchValue As String)

參數