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PersonalizationProvider.FindState Method

  • Reference

Definition

Namespace:
System.Web.UI.WebControls.WebParts
Assembly:
System.Web.dll

When overridden in a derived class, returns a collection containing zero or more PersonalizationStateInfo-derived objects based on scope and specific query parameters.

public:
 abstract System::Web::UI::WebControls::WebParts::PersonalizationStateInfoCollection ^ FindState(System::Web::UI::WebControls::WebParts::PersonalizationScope scope, System::Web::UI::WebControls::WebParts::PersonalizationStateQuery ^ query, int pageIndex, int pageSize, [Runtime::InteropServices::Out] int % totalRecords);
public abstract System.Web.UI.WebControls.WebParts.PersonalizationStateInfoCollection FindState (System.Web.UI.WebControls.WebParts.PersonalizationScope scope, System.Web.UI.WebControls.WebParts.PersonalizationStateQuery query, int pageIndex, int pageSize, out int totalRecords);
abstract member FindState : System.Web.UI.WebControls.WebParts.PersonalizationScope * System.Web.UI.WebControls.WebParts.PersonalizationStateQuery * int * int * int -> System.Web.UI.WebControls.WebParts.PersonalizationStateInfoCollection
Public MustOverride Function FindState (scope As PersonalizationScope, query As PersonalizationStateQuery, pageIndex As Integer, pageSize As Integer, ByRef totalRecords As Integer) As PersonalizationStateInfoCollection

Parameters

scope
PersonalizationScope

A PersonalizationScope with the personalization information to be queried. This value cannot be null.

query
PersonalizationStateQuery

A PersonalizationStateQuery containing a query. This value can be null.

pageIndex
Int32

The location where the query starts.

pageSize
Int32

The number of records to return.

totalRecords
Int32

The total number of records available.

Returns

PersonalizationStateInfoCollection

A PersonalizationStateInfoCollection containing zero or more PersonalizationStateInfo-derived objects.

Remarks

This method is the abstract definition of an administrative method for querying personalization data. Derived implementations should follow the logic described below.

The set of returned items is constrained by the pageIndex and pageSize parameters, where pageSize sets the number of records to return and pageIndex sets which records to return. For example, a pageIndex of 0 and a pageSize of 25 would return the first 25 occurrences, while a pageIndex of 1 and a pageSize of 25 would return occurrences 26-50. If you want to retrieve all available records, set pageIndex to 0 and pageSize to MaxValue.

The PersonalizationStateInfo-derived objects are returned in alphabetical order and sorted by a combination of their Path and Username property values, both in ascending order.

This method passes query wildcard characters to the underlying data store. Support for wildcard characters is currently dependent on how each provider handles characters such as an asterisk (*), a percent symbol (%), or an underscore (_).

Normally, for SQL-compliant data stores, you can perform a wildcard search on a partial path with the wildcard character appearing at the beginning, the end, or the middle of the search string text in the PathToMatch property. For example, to find all paths that start with "~/vdir", the PathToMatch property would be set to "~/vdir%".

Likewise, a wildcard search on a partial user name could have the wildcard character appear at any point in the text string of the UsernameToMatch property. For example, to find all user names that start with "John", the UsernameToMatch parameter would look like "John%".

The following query constraints apply:

  • If only scope is provided, and query is null or all the properties on query return either null or default values, then all records matching the indicated scope parameter are returned.

  • If the PathToMatch property is not null, the returned records are also filtered based on paths that match the PathToMatch value.

  • If the UsernameToMatch property is not null, the returned records are also filtered based on user names that match the UsernameToMatch property value.

  • If the UserInactiveSinceDate property is not equal to MaxValue, then the returned records are also filtered to return only those records associated with inactive users. The comparison includes records where the LastActivityDate property is less than or equal to the UserInactiveSinceDate property.

Note that this method does not validate combinations of query parameters. For example, code can request a set of personalization state records associated with a specific user name in the shared scope. Because user names are not associated with shared information, the returned collection would be empty.

Parameter combinations that have the potential to return a non-empty collection include:

Applies to