DataSourcePropertyAttribute(String, DataSourcePropertyIsNullMode) Constructor
Initializes a new instance of the DataSourcePropertyAttribute class with the specified DataSourcePropertyAttribute.DataSourceProperty and DataSourcePropertyAttribute.DataSourcePropertyIsNullMode properties.
Namespace: DevExpress.Persistent.Base
Assembly: DevExpress.ExpressApp.v19.1.dll
Declaration
public DataSourcePropertyAttribute(
string dataSourceProperty,
DataSourcePropertyIsNullMode mode
)
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. |
mode | DataSourcePropertyIsNullMode | A DataSourcePropertyIsNullMode enumeration value specifying the display mode for the target property’s Lookup List View if the DataSourcePropertyAttribute.DataSourceProperty is not specified. |
Remarks
If you do not need to specify the display mode if the property specified by the dataSourceProperty parameter is not set, use the constructor with only the dataSourceProperty parameter.
If you are going to pass the DataSourcePropertyIsNullMode.CustomCriteria value as the dataSourcePropertyIsNullMode parameter, use the constructor with three parameters. Pass the custom criteria as the third DataSourcePropertyAttribute.DataSourcePropertyIsNullCriteria parameter.
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DataSourcePropertyAttribute(String, DataSourcePropertyIsNullMode) constructor.
Note
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