ListSourceDataAdapter.DefaultMapItemType Property

Specifies the type of map items to be used by default when generating items from a data source.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v19.2.dll

Declaration

C#

[DefaultValue(MapItemType.Unknown)]
public MapItemType DefaultMapItemType { get; set; }

VB.NET

<DefaultValue(MapItemType.Unknown)>
Public Property DefaultMapItemType As MapItemType

Property Value

Type	Default	Description
MapItemType	**Unknown**	A MapItemType enumeration value.

Available values:

Show 13 items

Name	Description
Unknown	Represents an unknown map item type.
Dot	Represents a map dot.
Ellipse	Represents a map ellipse.
Line	Represents a map line.
Path	Represents a map path.
Polygon	Represents a map polygon.
Polyline	Represents a map polyline.
Rectangle	Represents a map rectangle.
Pushpin	Represents a map pushpin.
Custom	Represents a map custom element.
Callout	Represents a map callout.
Bubble	Represents a Bubble chart.
Pie	Represents a Pie chart.

Remarks

For more information about using the ListSourceDataAdapter class, refer to Providing Data.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-customize-mini-map-layers-t201418

Form1.cs

    mapControl.Layers.Add(CreateVectorLayer(data));
LayerBase CreateVectorLayer(object data) {
    ListSourceDataAdapter adapter = new ListSourceDataAdapter() {
        DataSource = data,
        DefaultMapItemType = MapItemType.Custom
    };
    adapter.Mappings.Latitude = "Latitude";
    adapter.Mappings.Longitude = "Longitude";

    adapter.AttributeMappings.Add(new MapItemAttributeMapping() {Name = "Name", Member = "Name"});
    adapter.AttributeMappings.Add(new MapItemAttributeMapping() {Name = "Year", Member = "Year"});
    adapter.AttributeMappings.Add(new MapItemAttributeMapping() {Name = "Description", Member = "Description"});

    VectorItemsLayer layer = new VectorItemsLayer() {
        Data = adapter,
        ItemImageIndex = 0,
        EnableSelection = false,
        EnableHighlighting = false,
        ToolTipPattern = "<b>{Name} ({Year})</b>\n{Description}"
    };
    return layer;
}

Form1.vb

    mapControl.Layers.Add(CreateVectorLayer(data))
Private Function CreateVectorLayer(ByVal data As Object) As LayerBase
    Dim adapter As New ListSourceDataAdapter() With {.DataSource = data, .DefaultMapItemType = MapItemType.Custom}
    adapter.Mappings.Latitude = "Latitude"
    adapter.Mappings.Longitude = "Longitude"

    adapter.AttributeMappings.Add(New MapItemAttributeMapping() With {.Name = "Name", .Member = "Name"})
    adapter.AttributeMappings.Add(New MapItemAttributeMapping() With {.Name = "Year", .Member = "Year"})
    adapter.AttributeMappings.Add(New MapItemAttributeMapping() With {.Name = "Description", .Member = "Description"})

    Dim layer As New VectorItemsLayer() With {.Data = adapter, .ItemImageIndex = 0, .EnableSelection = False, .EnableHighlighting = False, .ToolTipPattern = "<b>{Name} ({Year})</b>" & ControlChars.Lf & "{Description}"}
    Return layer
End Function

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the DefaultMapItemType property.

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.

VB.NET

how-to-customize-mini-map-layers-t201418/VB/MiniMapLayers/Form1.vb#L81

adapter.Mappings.Longitude = "Longitude"
adapter.DefaultMapItemType = MapItemType.Dot
adapter.PropertyMappings.Add(New MapDotSizeMapping() With {.DefaultValue = 10})

how-to-provide-additional-property-values-from-a-data-source-using-property-mappings-t289947/VB/PropertyMappingsSample/Form1.vb#L44

dataAdapter.DataSource = dataSource
dataAdapter.DefaultMapItemType = MapItemType.Rectangle
' Specify the obligatory mappings.

winforms-map-bind-to-xml-data/VB/WinForms_MapControl_ListAdapter/Form1.vb#L60

adapter.PropertyMappings.Add(New MapDotSizeMapping() With {.DefaultValue = 8})
adapter.DefaultMapItemType = MapItemType.Dot
Return adapter

C#

how-to-provide-additional-property-values-from-a-data-source-using-property-mappings-t289947/CS/PropertyMappingsSample/Form1.cs#L38

dataAdapter.DataSource = dataSource;
dataAdapter.DefaultMapItemType = MapItemType.Rectangle;
// Specify the obligatory mappings.

winforms-map-bind-to-xml-data/CS/WinForms_MapControl_ListAdapter/Form1.cs#L80

adapter.DefaultMapItemType = MapItemType.Dot;