WqlEventQuery.HavingCondition Property
Important
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Gets or sets the condition to be applied to the aggregation of events, based on the number of events received.
public:
property System::String ^ HavingCondition { System::String ^ get(); void set(System::String ^ value); };
public string HavingCondition { get; set; }
member this.HavingCondition : string with get, set
Public Property HavingCondition As String
Returns a String value containing the condition applied to the aggregation of events, based on the number of events received.
The following example initializes a new WqlEventQuery and displays the event query string.
using System;
using System.Management;
public class EventSample
{
public static void Main(string[] args)
{
WqlEventQuery query = new WqlEventQuery();
query.EventClassName = "__InstanceCreationEvent";
query.Condition = "TargetInstance ISA 'Win32_NTLogEvent'";
query.GroupWithinInterval = new TimeSpan(0, 0, 10);
System.Collections.Specialized.StringCollection collection =
new System.Collections.Specialized.StringCollection();
collection.Add("TargetInstance.SourceName");
query.GroupByPropertyList = collection;
query.HavingCondition = "NumberOfEvents > 25";
Console.WriteLine(query.QueryString);
return;
}
}
Imports System.Management
Public Class EventSample
Public Overloads Shared Function _
Main(ByVal args() As String) As Integer
Dim query As New WqlEventQuery
query.EventClassName = "__InstanceCreationEvent"
query.Condition = "TargetInstance ISA 'Win32_NTLogEvent'"
query.GroupWithinInterval = New TimeSpan(0, 0, 10)
Dim collection As New System.Collections.Specialized. _
StringCollection
collection.Add("TargetInstance.SourceName")
query.GroupByPropertyList = collection
query.HavingCondition = "NumberOfEvents > 25"
MessageBox.Show(query.QueryString)
End Function 'Main
End Class
Setting this property value overrides any previous value stored in the object. The query string is rebuilt to reflect the new grouping condition.
Null, if no aggregation or no condition should be applied; otherwise, a condition of the form "NumberOfEvents <operator> <value>".
Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Prodotto | Versioni |
---|---|
.NET | 8 (package-provided), 9 (package-provided) |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1 |
.NET Standard | 2.0 (package-provided) |
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