ArcGIS Pro 3.7 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / MapMemberIDSet Class / Contains Method / Contains(MapMember) Method
The MapMember to check.
Example

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    Contains(MapMember) Method
    In This Topic
    Determines if records from the specified mapMember are in the MapMemberIDSet.
    Syntax
    Public Overloads Function Contains( _
       ByVal mapMember As MapMember _
    ) As Boolean
    public bool Contains( 
       MapMember mapMember
    )

    Parameters

    mapMember
    The MapMember to check.
    Example
    Get OIDS from a SelectionSet for a given MapMember
    {
        MapMember us_zips_layer = map.GetLayersAsFlattenedList().OfType<FeatureLayer>().First(s => s.Name == "USA zips layer");
    
        var addToSelection = new Dictionary<MapMember, List<long>>();
        addToSelection.Add(us_zips_layer, new List<long> { 1506, 2696, 2246, 1647, 948 });
        //Create a SelectionSet object
        var selSet = ArcGIS.Desktop.Mapping.SelectionSet.FromDictionary(addToSelection);
    
        if (selSet.Contains(us_zips_layer))
        {
            var oids = selSet[us_zips_layer];
        }
    }
    Requirements

    Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

    ArcGIS Pro version: 3.4 or higher.
    See Also