Exago .NET API Documentation
FilterDataSourceId Property
Example 
WebReports.Api.Reports Namespace > Entity Class : FilterDataSourceId Property
When creating a Custom Filter Dropdown Object, this is the ID of the data source that contains the Entity (Data Object) that has the filter dropdown values.
Syntax
public System.int FilterDataSourceId {get; set;}

Property Value

The integer ID of the Data Source.
Remarks
Equivalent to the Data Source dropdown portion of the Filter Dropdown Object settings in the Admin Console for a Data Object,
Example
myNewEntity.FilterDataSourceId = api.DataSources.GetDataSource("Filter Data Source Name").Id;
See Also

Reference

Entity Class
Entity Members