LookupEditPropertyCollectionSource.DataSourcePropertyIsNullMode Property

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v19.2.dll

Declaration

C#

[Browsable(false)]
public DataSourcePropertyIsNullMode DataSourcePropertyIsNullMode { get; }

VB.NET

<Browsable(False)>
Public ReadOnly Property DataSourcePropertyIsNullMode As DataSourcePropertyIsNullMode

Property Value

Type
DataSourcePropertyIsNullMode

Available values:

Name	Description
SelectNothing	Specifies that the property’s Lookup List View is bound to an empty collection.
SelectAll	Specifies that the property’s Lookup List View is bound to a collection of all existing persistent objects of the property’s type.
CustomCriteria	Specifies that the Lookup List View is bound to a collection containing the objects that satisfy the criteria. The criteria should be specified by the DataSourcePropertyAttribute.DataSourcePropertyIsNullCriteria parameter of the DataSourcePropertyAttribute.