DefaultTraceListener.AssertUiEnabled 属性

定义

命名空间:

System.Diagnostics

程序集:

System.Diagnostics.TraceSource.dll

Source:

DefaultTraceListener.cs

获取或设置一个值，该值指示应用程序是否以用户界面模式运行。

public:
 property bool AssertUiEnabled { bool get(); void set(bool value); };

public bool AssertUiEnabled { get; set; }

member this.AssertUiEnabled : bool with get, set

Public Property AssertUiEnabled As Boolean

属性值

Boolean

如果启用了用户界面模式，则为 true；否则为 false。

示例

下面的代码示例调用一个函数，该函数调用 Fail(String, String) 方法以在函数引发异常时记录错误消息。 AssertUiEnabled如果 属性为 false，则 方法还会将错误消息写入控制台。

// Compute the next binomial coefficient and handle all exceptions.
try
{
    result = CalcBinomial(possibilities, iter);
}
catch(Exception ex)
{
    string failMessage = String.Format("An exception was raised when " +
        "calculating Binomial( {0}, {1} ).", possibilities, iter);
    defaultListener.Fail(failMessage, ex.Message);
    if (!defaultListener.AssertUiEnabled)
    {
        Console.WriteLine(failMessage+ "\n" +ex.Message);
    }
    return;
}

' Compute the next binomial coefficient and handle all exceptions.
Try
    result = CalcBinomial(possibilities, iter)
Catch ex As Exception
    Dim failMessage As String = String.Format( _
            "An exception was raised when " & _
            "calculating Binomial( {0}, {1} ).", _
            possibilities, iter)
    defaultListener.Fail(failmessage, ex.Message)
    If Not defaultListener.AssertUiEnabled Then
        Console.WriteLine(failMessage & vbCrLf & ex.Message)
    End If
    Return
End Try