ShapefileDataAdapter.FileUri Property

SECURITY NOTE

Downloading map data passed through URLs specified by the FileUri property may create security issues. Review the following help topic and learn how to spot, analyze, and prohibit unwanted download requests:

Suppress Control Requests to Download Data from External URLs

Gets or sets an Uri that defines the location of a shapefile.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v23.2.dll

NuGet Package: DevExpress.Win.Map

Declaration

C#

[DefaultValue(null)]
public Uri FileUri { get; set; }

VB.NET

<DefaultValue(Nothing)>
Public Property FileUri As Uri

Property Value

Type	Default	Description
Uri	null	A Uri object that contains a shapefile Uri.

Example

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.

View Example

Form1.cs

    // 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;
}

Form1.vb

    ' 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

Related GitHub Examples

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

C#

winforms-map-customize-coordinate-systems-of-a-map/CS/CoordinateSystems/Form1.cs#L29

Uri baseUri = new Uri(System.Reflection.Assembly.GetEntryAssembly().Location);
Adapter.FileUri = new Uri(baseUri, geoMapGeoDataFile);
Adapter.SourceCoordinateSystem = new GeoSourceCoordinateSystem();

how-to-colorize-map-contours-loaded-from-shapefiles-using-the-graph-colorizer-e4723/CS/MapGraphColorizer/Form1.cs#L40

string shapefilePath = "../../Data/Countries.shp";
loader.FileUri = new Uri(baseUri, shapefilePath);

how-to-convert-a-cartesian-data-shapefile-to-geo-coordinates-t543574/CS/MapSample/Form1.cs#L49

{
    shapefileDataAdapter1.FileUri = new Uri(dialog.FileName);
    string projectionPath = dialog.FileName.Substring(0, dialog.FileName.Length-3) + "prj";

winforms-map-load-cartesian-data-to-a-map-control-with-a-coordinate-converter/CS/BuildInCoordinateConverters/Form1.cs#L94

Uri fileUri = new Uri(baseUri, data.Filepath);
adapter.FileUri = fileUri;
adapter.SourceCoordinateSystem = data.CoordinateSystem;

VB.NET

winforms-map-customize-coordinate-systems-of-a-map/VB/CoordinateSystems/Form1.vb#L34

Dim baseUri As Uri = New Uri(Reflection.Assembly.GetEntryAssembly().Location)
Adapter.FileUri = New Uri(baseUri, geoMapGeoDataFile)
Adapter.SourceCoordinateSystem = New GeoSourceCoordinateSystem()

how-to-colorize-map-contours-loaded-from-shapefiles-using-the-graph-colorizer-e4723/VB/MapGraphColorizer/Form1.vb#L39

Dim shapefilePath As String = "../../Data/Countries.shp"
loader.FileUri = New Uri(baseUri, shapefilePath)

how-to-convert-a-cartesian-data-shapefile-to-geo-coordinates-t543574/VB/MapSample/Form1.vb#L43

If dialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
    shapefileDataAdapter1.FileUri = New Uri(dialog.FileName)
    Dim projectionPath As String = dialog.FileName.Substring(0, dialog.FileName.Length-3) & "prj"

winforms-map-load-cartesian-data-to-a-map-control-with-a-coordinate-converter/VB/BuildInCoordinateConverters/Form1.vb#L47

Dim fileUri As Uri = New Uri(baseUri, data.Filepath)
adapter.FileUri = fileUri
adapter.SourceCoordinateSystem = data.CoordinateSystem