DataSourcePropertyAttribute(String, DataSourcePropertyIsNullMode, String) Constructor

Initializes a new instance of the DataSourcePropertyAttribute class with the specified DataSourcePropertyAttribute.DataSourceProperty, DataSourcePropertyAttribute.DataSourcePropertyIsNullMode and DataSourcePropertyAttribute.DataSourcePropertyIsNullCriteria properties.

Namespace: DevExpress.Persistent.Base

Assembly: DevExpress.ExpressApp.v18.2.dll

Declaration

C#

public DataSourcePropertyAttribute(
    string dataSourceProperty,
    DataSourcePropertyIsNullMode dataSourcePropertyIsNullMode,
    string dataSourcePropertyIsNullCriteria
)

VB.NET

Public Sub New(
    dataSourceProperty As String,
    dataSourcePropertyIsNullMode As DataSourcePropertyIsNullMode,
    dataSourcePropertyIsNullCriteria As String
)

Parameters

Name	Type	Description
dataSourceProperty	String	A string value specifying the name of a collection property used as the data source for a List View displayed in a Lookup Property Editor or invoked by the LinkUnlinkController.LinkAction Action in a popup window.
dataSourcePropertyIsNullMode	DataSourcePropertyIsNullMode	A DataSourcePropertyIsNullMode enumeration value specifying the display mode for the target property’s Lookup List View, if the DataSourcePropertyAttribute.DataSourceProperty is not specified.
dataSourcePropertyIsNullCriteria	String	A string value specifying criteria for filtering the target property’s Lookup List View if the DataSourcePropertyAttribute.DataSourceProperty is not specified.

Remarks

If you need to set the DataSourcePropertyIsNullMode.SelectAll or DataSourcePropertyIsNullMode.SelectNothing display mode in the case where the property specified by the dataSourceProperty parameter is not set, use the constructor with two parameters.

If you are not going to process the situation when the property specified by the dataSourceProperty parameter is not specified, use the constructor with a single dataSourceProperty parameter.