Edit

Share via

DirectorySearcher.Filter Property

  • Reference

Definition

Namespace:
System.DirectoryServices
Assembly:
System.DirectoryServices.dll
Package:
System.DirectoryServices v8.0.0
Package:
System.DirectoryServices v9.0.0-rc.1.24431.7
Source:
DirectorySearcher.cs
Source:
DirectorySearcher.cs
Source:
DirectorySearcher.cs
Source:
DirectorySearcher.cs

Gets or sets a value indicating the Lightweight Directory Access Protocol (LDAP) format filter string.

public:
 property System::String ^ Filter { System::String ^ get(); void set(System::String ^ value); };
public string? Filter { get; set; }
[System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
[System.DirectoryServices.DSDescription("DSFilter")]
public string Filter { get; set; }
[System.DirectoryServices.DSDescription("DSFilter")]
[System.ComponentModel.SettingsBindable(true)]
[System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string Filter { get; set; }
[System.DirectoryServices.DSDescription("DSFilter")]
[System.ComponentModel.SettingsBindable(true)]
[System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string Filter { get; set; }
public string Filter { get; set; }
member this.Filter : string with get, set
[<System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
[<System.DirectoryServices.DSDescription("DSFilter")>]
member this.Filter : string with get, set
[<System.DirectoryServices.DSDescription("DSFilter")>]
[<System.ComponentModel.SettingsBindable(true)>]
[<System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.Filter : string with get, set
[<System.DirectoryServices.DSDescription("DSFilter")>]
[<System.ComponentModel.SettingsBindable(true)>]
[<System.ComponentModel.TypeConverter("System.Diagnostics.Design.StringValueConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.Filter : string with get, set
Public Property Filter As String

Property Value

String

The search filter string in LDAP format, such as "(objectClass=user)". The default is "(objectClass=*)", which retrieves all objects.

Attributes
TypeConverterAttribute DSDescriptionAttribute SettingsBindableAttribute

Remarks

The filter uses the following guidelines:

  1. The string must be enclosed in parentheses.

  2. Expressions can use the relational operators: <, <=, =, >=, and >. An example is "(objectClass=user)". Another example is "(lastName>=Davis)".

  3. Compound expressions are formed with the prefix operators & and |. An example is "(&(objectClass=user)(lastName= Davis))". Another example is "(&(objectClass=printer)(|(building=42)(building=43)))".

When the filter contains an attribute of ADS_UTC_TIME type, its value must be of the yyyymmddhhmmssZ format where y, m, d, h, m, and s stand for year, month, day, hour, minute, and second, respectively. The seconds (ss) value is optional. The final letter Z means there is no time differential. In this format, "10:20:00 A.M. May 13, 1999" becomes "19990513102000Z". Note that Active Directory Domain Services stores date and time as Coordinated Universal Time (Greenwich Mean Time). If you specify a time with no time differential, you are specifying the time in GMT time.

If you are not in the Coordinated Universal Time time zone, you can add a differential value to the Coordinated Universal Time (instead of specifying Z) to specify a time according to your time zone. The differential is based on the following: differential = Coordinated Universal Time- Local. To specify a differential, use the following format: yyyymmddhhmmss[+/-]hhmm. For example, "8:52:58 P.M. March 23, 1999" New Zealand Standard Time (the differential is 12 hours) is specified as "19990323205258.0+1200".

For more information about the LDAP search string format, see Search Filter Syntax.

Applies to