DataSourcePropertyAttribute(String, DataSourcePropertyIsNullMode, String[]) Constructor

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

Namespace: DevExpress.Persistent.Base

Assembly: DevExpress.ExpressApp.v25.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public DataSourcePropertyAttribute(
    string dataSourceProperty,
    DataSourcePropertyIsNullMode mode,
    params string[] usedProperties
)

VB.NET

Public Sub New(
    dataSourceProperty As String,
    mode As DataSourcePropertyIsNullMode,
    ParamArray usedProperties As String()
)

Parameters

Name	Type	Description
dataSourceProperty	String	A string value that specifies 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.
mode	DataSourcePropertyIsNullMode	A DataSourcePropertyIsNullMode enumeration value that specifies the display mode for the target property’s Lookup List View if the DataSourcePropertyAttribute.DataSourceProperty is not specified.
usedProperties	String[]	An array of System.String values that specify properties whose values are used to calculate the data source property’s return value.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the DataSourcePropertyAttribute(String, DataSourcePropertyIsNullMode, String[]) constructor.

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#

xaf-how-to-change-connection-to-the-database-at-runtime/CS/EFCore/ASP.NETCore/Blazor/RuntimeDbChooser.Module/BusinessObjects/CustomLogonParameters.cs#L20

[DataSourceProperty(nameof(GetDataBaseNames), DataSourcePropertyIsNullMode.SelectAll)]
public DataBaseNameHolder DatabaseName {

xaf-custom-logon-parameters/CS/EF/EFCoreCustomLogonAll.Module/Authentication/CustomLogonParameters.cs#L31

[ImmediatePostData]
[DataSourceProperty("Companies", DataSourcePropertyIsNullMode.SelectAll)]
[IgnoreDataMember]