PerformanceCounterCategory 建構函式

定義

命名空間:

System.Diagnostics

組件:

System.Diagnostics.PerformanceCounter.dll

套件:

System.Diagnostics.PerformanceCounter v8.0.0

初始化 PerformanceCounterCategory 類別的新執行個體。

多載

PerformanceCounterCategory()	初始化 PerformanceCounterCategory 類別的新執行個體，將 CategoryName 屬性保留為空的，並將 MachineName 屬性設定為本機電腦。
PerformanceCounterCategory(String)	初始化 PerformanceCounterCategory 類別的新執行個體，將 CategoryName 屬性設定為指定值，並將 MachineName 屬性設定為本機電腦。
PerformanceCounterCategory(String, String)	初始化 PerformanceCounterCategory 類別的新執行個體，並將 CategoryName 和 MachineName 屬性設定為指定值。

PerformanceCounterCategory()

來源:

PerformanceCounterCategory.cs

初始化 PerformanceCounterCategory 類別的新執行個體，將 CategoryName 屬性保留為空的，並將 MachineName 屬性設定為本機電腦。

public:
 PerformanceCounterCategory();

public PerformanceCounterCategory ();

Public Sub New ()

範例

下列程式代碼範例會接受 PerformanceCounterCategory 命令行中的名稱和計算機名稱。 它會使用適用於所提供參數數目的建構函式多載來建立 PerformanceCounterCategory ，然後顯示其屬性。

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

    // Copy the supplied arguments into the local variables.
    try
    {
        categoryName = args[0];
        machineName = args[1]=="."? "": args[1];
    }
    catch(Exception ex)
    {
        // Ignore the exception from non-supplied arguments.
    }

    // Create a PerformanceCounterCategory object using
    // the appropriate constructor.
    if (categoryName.Length==0)
    {
        pcc = new PerformanceCounterCategory();
    }
    else if(machineName.Length==0)
    {
        pcc = new PerformanceCounterCategory(categoryName);
    }
    else
    {
        pcc = new PerformanceCounterCategory(categoryName, 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 PerformanceCounterCategory

    ' Copy the supplied arguments into the local variables.
    Try
        categoryName = args(0)
        machineName = IIf(args(1) = ".", "", args(1))
    Catch ex As Exception
        ' Ignore the exception from non-supplied arguments.
    End Try

    ' Create a PerformanceCounterCategory object using 
    ' the appropriate constructor.
    If categoryName.Length = 0 Then
        pcc = New PerformanceCounterCategory
    ElseIf machineName.Length = 0 Then
        pcc = New PerformanceCounterCategory(categoryName)
    Else
        pcc = New PerformanceCounterCategory(categoryName, machineName)
    End If

    ' 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

備註

在 CategoryName 將這個 PerformanceCounterCategory 實例與伺服器上的性能物件建立關聯之前，必須先設定 屬性。 否則，會擲回例外狀況。

另請參閱

• CategoryName
• MachineName
• PerformanceCounter

PerformanceCounterCategory(String)

來源:

PerformanceCounterCategory.cs

初始化 PerformanceCounterCategory 類別的新執行個體，將 CategoryName 屬性設定為指定值，並將 MachineName 屬性設定為本機電腦。

public:
 PerformanceCounterCategory(System::String ^ categoryName);

public PerformanceCounterCategory (string categoryName);

new System.Diagnostics.PerformanceCounterCategory : string -> System.Diagnostics.PerformanceCounterCategory

Public Sub New (categoryName As String)

參數

categoryName

String

效能計數器分類或效能物件的名稱，用來與這個 PerformanceCounterCategory 執行個體相關聯。

例外狀況

ArgumentException

categoryName 為空字串 ("")。

ArgumentNullException

categoryName 為 null。

範例

下列程式代碼範例會接受 PerformanceCounterCategory 命令行中的名稱和計算機名稱。 它會使用適用於所提供參數數目的建構函式多載來建立 PerformanceCounterCategory ，然後顯示其屬性。

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

    // Copy the supplied arguments into the local variables.
    try
    {
        categoryName = args[0];
        machineName = args[1]=="."? "": args[1];
    }
    catch(Exception ex)
    {
        // Ignore the exception from non-supplied arguments.
    }

    // Create a PerformanceCounterCategory object using
    // the appropriate constructor.
    if (categoryName.Length==0)
    {
        pcc = new PerformanceCounterCategory();
    }
    else if(machineName.Length==0)
    {
        pcc = new PerformanceCounterCategory(categoryName);
    }
    else
    {
        pcc = new PerformanceCounterCategory(categoryName, 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 PerformanceCounterCategory

    ' Copy the supplied arguments into the local variables.
    Try
        categoryName = args(0)
        machineName = IIf(args(1) = ".", "", args(1))
    Catch ex As Exception
        ' Ignore the exception from non-supplied arguments.
    End Try

    ' Create a PerformanceCounterCategory object using 
    ' the appropriate constructor.
    If categoryName.Length = 0 Then
        pcc = New PerformanceCounterCategory
    ElseIf machineName.Length = 0 Then
        pcc = New PerformanceCounterCategory(categoryName)
    Else
        pcc = New PerformanceCounterCategory(categoryName, machineName)
    End If

    ' 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

另請參閱

• CategoryName
• MachineName
• PerformanceCounter

PerformanceCounterCategory(String, String)

來源:

PerformanceCounterCategory.cs

初始化 PerformanceCounterCategory 類別的新執行個體，並將 CategoryName 和 MachineName 屬性設定為指定值。

public:
 PerformanceCounterCategory(System::String ^ categoryName, System::String ^ machineName);

public PerformanceCounterCategory (string categoryName, string machineName);

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

Public Sub New (categoryName As String, machineName As String)

參數

categoryName

String

效能計數器分類或效能物件的名稱，用來與這個 PerformanceCounterCategory 執行個體相關聯。

machineName

String

效能計數器分類和其相關計數器所在的電腦。

例外狀況

ArgumentException

categoryName 為空字串 ("")。

-或-

machineName 語法無效。

ArgumentNullException

categoryName 為 null。

範例

下列程式代碼範例會接受 PerformanceCounterCategory 命令行中的名稱和計算機名稱。 它會使用適用於所提供參數數目的建構函式多載來建立 PerformanceCounterCategory ，然後顯示其屬性。

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

    // Copy the supplied arguments into the local variables.
    try
    {
        categoryName = args[0];
        machineName = args[1]=="."? "": args[1];
    }
    catch(Exception ex)
    {
        // Ignore the exception from non-supplied arguments.
    }

    // Create a PerformanceCounterCategory object using
    // the appropriate constructor.
    if (categoryName.Length==0)
    {
        pcc = new PerformanceCounterCategory();
    }
    else if(machineName.Length==0)
    {
        pcc = new PerformanceCounterCategory(categoryName);
    }
    else
    {
        pcc = new PerformanceCounterCategory(categoryName, 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 PerformanceCounterCategory

    ' Copy the supplied arguments into the local variables.
    Try
        categoryName = args(0)
        machineName = IIf(args(1) = ".", "", args(1))
    Catch ex As Exception
        ' Ignore the exception from non-supplied arguments.
    End Try

    ' Create a PerformanceCounterCategory object using 
    ' the appropriate constructor.
    If categoryName.Length = 0 Then
        pcc = New PerformanceCounterCategory
    ElseIf machineName.Length = 0 Then
        pcc = New PerformanceCounterCategory(categoryName)
    Else
        pcc = New PerformanceCounterCategory(categoryName, machineName)
    End If

    ' 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

另請參閱

• CategoryName
• MachineName
• PerformanceCounter