windowsforms-devexpress-dot-xtramap-dot-shapefiledataadapter.md
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.v25.2.dll
NuGet Package : DevExpress.Win.Map
[DefaultValue(null)]
public Uri FileUri { get; set; }
<DefaultValue(Nothing)>
Public Property FileUri As Uri
| Type | Default | Description |
|---|---|---|
| Uri | null |
A Uri object that contains a shapefile Uri.
|
To load shape data from a shapefile do the following.
ShapefileDataAdapter.FileUri property.// 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
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.
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();
winforms-map-convert-a-cartesian-data-shapefile-to-geo-coordinates/CS/MapSample/Form1.cs#L49
{
shapefileDataAdapter1.FileUri = new Uri(dialog.FileName);
string projectionPath = dialog.FileName.Substring(0, dialog.FileName.Length-3) + "prj";
Uri fileUri = new Uri(baseUri, data.Filepath);
adapter.FileUri = fileUri;
adapter.SourceCoordinateSystem = data.CoordinateSystem;
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()
winforms-map-convert-a-cartesian-data-shapefile-to-geo-coordinates/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"
Dim fileUri As Uri = New Uri(baseUri, data.Filepath)
adapter.FileUri = fileUri
adapter.SourceCoordinateSystem = data.CoordinateSystem
See Also