Session.GetKeyValue(Object) Method

Returns the key property’s value of the specified persistent object.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v18.2.dll

Declaration

C#

public object GetKeyValue(
    object theObject
)

VB.NET

Public Function GetKeyValue(
    theObject As Object
) As Object

Parameters

Name	Type	Description
theObject	Object	An object which represents the persistent object whose key property’s value is returned.

Returns

Type	Description
Object	An object which represents the key property’s value of the specified persistent object.

Remarks

If the specified persistent object is a null reference, a System.ArgumentNullException is thrown.

To set the value of the key property use the Session.SetKeyValue method.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the GetKeyValue(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-clone-a-persistent-object-e804/CS/CloneHelper.cs#L77

if (synchronize && !cloneAlways) {
    clonedValue = targetSession.GetObjectByKey(targetSession.GetClassInfo(propertyValue), targetSession.GetKeyValue(propertyValue));
}

XPO_how-to-track-changes-made-to-persistent-objects-and-write-them-into-a-separate-table-e2419/CS/Q149895/Northwind.cs#L15

audit.Date = DateTime.Now;
audit.AuditedRecord = string.Format("{0}({1})", ClassInfo.FullName, Session.GetKeyValue(this));
audit.User = Environment.UserName;

VB.NET

XPO_how-to-clone-a-persistent-object-e804/VB/CloneHelper.vb#L80

If synchronize AndAlso (Not cloneAlways) Then
    clonedValue = targetSession.GetObjectByKey(targetSession.GetClassInfo(propertyValue), targetSession.GetKeyValue(propertyValue))
End If

XPO_how-to-track-changes-made-to-persistent-objects-and-write-them-into-a-separate-table-e2419/VB/Q149895/Northwind.vb#L19

audit.Date = DateTime.Now
audit.AuditedRecord = String.Format("{0}({1})", ClassInfo.FullName, Session.GetKeyValue(Me))
audit.User = Environment.UserName