编辑

通过

WqlEventQuery.QueryString Property

Definition

Namespace:
System.Management
Assembly:
System.Management.dll
Package:
System.Management v10.0.0-rc.2.25502.107
Source:
ManagementQuery.cs
Source:
ManagementQuery.cs
Source:
ManagementQuery.cs

Gets or sets the string representing the query.

public:
 virtual property System::String ^ QueryString { System::String ^ get(); void set(System::String ^ value); };
public override string QueryString { get; set; }
member this.QueryString : string with get, set
Public Overrides Property QueryString As String

Property Value

String

Returns a String value containing the query.

Examples

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

Remarks

Property Value

A string representing the query.

.NET Framework Security

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.

Applies to