PersistentBase.GetModificationsStore(Object) Method

Returns an object that stores information about the modified properties when the Session.TrackPropertiesModifications option is enabled.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v22.1.dll

Declaration

C#

public static IXPModificationsStore GetModificationsStore(
    object theObject
)

VB.NET

Public Shared Function GetModificationsStore(
    theObject As Object
) As IXPModificationsStore

Parameters

Name	Type	Description
theObject	Object	A persistent object that is modified.

Returns

Type	Description
IXPModificationsStore	An IXPModificationsStore object that stores information about the modified properties.

Remarks

Use the GetModificationsStore method to access an IXPModificationsStore storage for a given persistent object Then, you can access the IXPModificationsStore methods, for instance:

C#

XPMemberInfo miContactTitle = person.ClassInfo.GetMember("ContactTitle");
IXPModificationsStore ms = PersistentBase.GetModificationsStore(person);
var oldValue = ms.GetPropertyOldValue(miContactTitle);

VB.NET

Dim miContactTitle As XPMemberInfo = person.ClassInfo.GetMember("ContactTitle")
Dim ms As IXPModificationsStore = PersistentBase.GetModificationsStore(person)
Dim oldValue = ms.GetPropertyOldValue(miContactTitle)

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetModificationsStore(Object) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XPO_how-to-create-an-xpclassinfo-descendant-to-dynamically-build-a-persistent-class-structure-e1729/CS/DynamicDataTable/DynamicDataTableClassInfo.cs#L52

public override bool HasModifications(object theObject) {
    return PersistentBase.GetModificationsStore(theObject).HasModifications();
}

VB.NET

XPO_how-to-create-an-xpclassinfo-descendant-to-dynamically-build-a-persistent-class-structure-e1729/VB/DynamicDataTable/DynamicDataTableClassInfo.vb#L69

Public Overrides Function HasModifications(ByVal theObject As Object) As Boolean
    Return PersistentBase.GetModificationsStore(theObject).HasModifications()
End Function