PerformanceCounterCategory Constructors
Definition
Important
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Initializes a new instance of the PerformanceCounterCategory class.
Overloads
| PerformanceCounterCategory() |
Initializes a new instance of the PerformanceCounterCategory class, leaves the CategoryName property empty, and sets the MachineName property to the local computer. |
| PerformanceCounterCategory(String) |
Initializes a new instance of the PerformanceCounterCategory class, sets the CategoryName property to the specified value, and sets the MachineName property to the local computer. |
| PerformanceCounterCategory(String, String) |
Initializes a new instance of the PerformanceCounterCategory class and sets the CategoryName and MachineName properties to the specified values. |
PerformanceCounterCategory()
Initializes a new instance of the PerformanceCounterCategory class, leaves the CategoryName property empty, and sets the MachineName property to the local computer.
public:
PerformanceCounterCategory();public PerformanceCounterCategory ();Public Sub New ()Examples
The following code example accepts a PerformanceCounterCategory name and a computer name from the command line. It creates a PerformanceCounterCategory using the constructor overload appropriate for the number of parameters provided, then displays its properties.
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
Remarks
The CategoryName property must be set before associating this PerformanceCounterCategory instance with a performance object on the server. Otherwise, an exception is thrown.
See also
Applies to
PerformanceCounterCategory(String)
Initializes a new instance of the PerformanceCounterCategory class, sets the CategoryName property to the specified value, and sets the MachineName property to the local computer.
public:
PerformanceCounterCategory(System::String ^ categoryName);public PerformanceCounterCategory (string categoryName);new System.Diagnostics.PerformanceCounterCategory : string -> System.Diagnostics.PerformanceCounterCategoryPublic Sub New (categoryName As String)Parameters
- categoryName
- String
The name of the performance counter category, or performance object, with which to associate this PerformanceCounterCategory instance.
Exceptions
The categoryName is an empty string ("").
The categoryName is null.
Examples
The following code example accepts a PerformanceCounterCategory name and a computer name from the command line. It creates a PerformanceCounterCategory using the constructor overload that is appropriate for the number of parameters provided, then displays its properties.
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
See also
Applies to
PerformanceCounterCategory(String, String)
Initializes a new instance of the PerformanceCounterCategory class and sets the CategoryName and MachineName properties to the specified values.
public:
PerformanceCounterCategory(System::String ^ categoryName, System::String ^ machineName);public PerformanceCounterCategory (string categoryName, string machineName);new System.Diagnostics.PerformanceCounterCategory : string * string -> System.Diagnostics.PerformanceCounterCategoryPublic Sub New (categoryName As String, machineName As String)Parameters
- categoryName
- String
The name of the performance counter category, or performance object, with which to associate this PerformanceCounterCategory instance.
- machineName
- String
The computer on which the performance counter category and its associated counters exist.
Exceptions
The categoryName is null.
Examples
The following code example accepts a PerformanceCounterCategory name and a computer name from the command line. It creates a PerformanceCounterCategory using the constructor overload that is appropriate for the number of parameters provided, then displays its properties.
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
See also
Applies to
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