windowsforms-devexpress-dot-xtramap-dot-listsourcedataadapter-d3dd6cdc.md
Specifies the type of map items to be used by default when generating items from a data source.
Namespace : DevExpress.XtraMap
Assembly : DevExpress.XtraMap.v25.2.dll
NuGet Package : DevExpress.Win.Map
[DefaultValue(MapItemType.Unknown)]
public MapItemType DefaultMapItemType { get; set; }
<DefaultValue(MapItemType.Unknown)>
Public Property DefaultMapItemType As MapItemType
| Type | Default | Description |
|---|---|---|
| MapItemType | Unknown |
A MapItemType enumeration value.
|
Available values:
Show 14 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.
| | Spline |
Represents a map spline.
|
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;
}
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
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.
winforms-map-customize-mini-map-layers/CS/MiniMapLayers/Form1.cs#L97
adapter.Mappings.Longitude = "Longitude";
adapter.DefaultMapItemType = MapItemType.Dot;
adapter.PropertyMappings.Add(
winforms-map-bind-to-xml-data/CS/WinForms_MapControl_ListAdapter/Form1.cs#L80
adapter.DefaultMapItemType = MapItemType.Dot;
winforms-map-customize-mini-map-layers/VB/MiniMapLayers/Form1.vb#L73
adapter.Mappings.Longitude = "Longitude"
adapter.DefaultMapItemType = DevExpress.XtraMap.MapItemType.Dot
adapter.PropertyMappings.Add(New DevExpress.XtraMap.MapDotSizeMapping() With {.DefaultValue = 10})
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
See Also