ShapefileDataAdapter Class

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v19.2.dll

Declaration

public class ShapefileDataAdapter :
    FileDataAdapterBase,
    ISupportBoundingRectAdapter

Public Class ShapefileDataAdapter
    Inherits FileDataAdapterBase
    Implements ISupportBoundingRectAdapter

Remarks

Currently, the following shapefile element types are supported.

• Point
• PolyLine
• Polygon
• Multipoint
• PointZ (the Z value is ignored)
• PolylineZ (the Z value is ignored)
• PolygonZ (the Z value is ignored)
• MultipointZ (the Z value is ignored)
• PointM (the M value is ignored)
• PolylineM (the M value is ignored)
• PolygonM (the M value is ignored)
• MultipointM (the M value is ignored)

For more information about Shapefile element types, refer to the ERSI Shapefile Technical Description

For more information about this data adapter, refer to the Load Vector Data from a Shapefile topic.

Examples

To load shape data from a shapefile do the following.

• Create a ShapefileDataAdapter object.
• Specify its ShapefileDataAdapter.FileUri property.
• Assign this object as the VectorItemsLayer.Data property value.

    // Create data for the MapLayer.
    MapLayer.Data = CreateData();
private MapDataAdapterBase CreateData() {
    Uri baseUri = new Uri(System.Reflection.Assembly.GetEntryAssembly().Location);

    // Create an adapter to load data from shapefile.
    ShapefileDataAdapter adapter = new ShapefileDataAdapter() {
        FileUri = new Uri(baseUri, filename)
    };

    return adapter;
}

    ' Create data for the MapLayer.
    MapLayer.Data = CreateData()
Private Function CreateData() As MapDataAdapterBase
    Dim baseUri As New Uri(System.Reflection.Assembly.GetEntryAssembly().Location)

    ' Create an adapter to load data from shapefile.
    Dim adapter As New ShapefileDataAdapter() With {.FileUri = New Uri(baseUri, filename)}

    Return adapter
End Function