PerformanceCounterCategory.CategoryHelp 属性

public:
 property System::String ^ CategoryHelp { System::String ^ get(); };

public string CategoryHelp { get; }

member this.CategoryHelp : string

Public ReadOnly Property CategoryHelp As String

属性值

此类别度量的性能对象的说明。

例外

示例

下面的代码示例使用 PerformanceCounterCategoryPerformanceCounterCategory().. 它会提示用户输入 PerformanceCounterCategory 计算机名称，然后设置 CategoryName 输入值中的和 MachineName 属性。 然后，它显示值CategoryName和MachineNameCategoryHelp属性，或者如果无法访问错误消息，则显示错误消息PerformanceCounterCategory。

public static void Main(string[] args)
{
    string categoryName = "";
    string machineName = "";
    PerformanceCounterCategory pcc = new PerformanceCounterCategory();

    // Prompt for fields and set the corresponding properties.
    while (categoryName.Length==0)
    {
        Console.Write("Please enter a non-blank category name: ");
        categoryName = Console.ReadLine().Trim();
        if (categoryName.Length>0)
        {
            pcc.CategoryName = categoryName;
        }
    }
    while (machineName.Length==0)
    {
        Console.Write("Enter a non-blank computer name ['.' for local]: ");
        machineName = Console.ReadLine().Trim();
        if (machineName.Length>0)
        {
            pcc.MachineName = machineName;
        }
    }

    // Display the properties of the PerformanceCounterCategory object.
    try
    {
        Console.WriteLine("  Category:  {0}", pcc.CategoryName);
        Console.WriteLine("  Computer:  {0}", pcc.MachineName);
        Console.WriteLine("  Help text: {0}", pcc.CategoryHelp);
    }
    catch(Exception ex)
    {
        Console.WriteLine("Error getting the properties of the " +
            "PerformanceCounterCategory object:");
        Console.WriteLine(ex.Message);
    }
}

Sub Main(ByVal args() As String)
    Dim categoryName As String = ""
    Dim machineName As String = ""
    Dim pcc As New PerformanceCounterCategory

    ' Prompt for fields and set the corresponding properties.
    While categoryName.Length = 0
        Console.Write("Please enter a non-blank category name: ")
        categoryName = Console.ReadLine().Trim
        If categoryName.Length > 0 Then
            pcc.CategoryName = categoryName
        End If
    End While
    While machineName.Length = 0
        Console.Write( _
            "Enter a non-blank computer name ['.' for local]: ")
        machineName = Console.ReadLine().Trim
        If machineName.Length > 0 Then
            pcc.MachineName = machineName
        End If
    End While

    ' Display the properties of the PerformanceCounterCategory object.
    Try
        Console.WriteLine("  Category:  {0}", pcc.CategoryName)
        Console.WriteLine("  Computer:  {0}", pcc.MachineName)
        Console.WriteLine("  Help text: {0}", pcc.CategoryHelp)
    Catch ex As Exception
        Console.WriteLine("Error getting the properties of the " & _
            "PerformanceCounterCategory object:")
        Console.WriteLine(ex.Message)
    End Try
End Sub

另请参阅

• CategoryName
• MachineName
• PerformanceCounter
• CounterHelp