windowsforms-devexpress-dot-xtramap-dot-mapitemslayerbase-dot-exporttokml-x28-system-dot-string-x29.md
Using file paths sourced from untrusted input may expose unauthorized files or allow unintended file access. Always validate and normalize all external paths to prevent path manipulation.
Exports data from this vector layer to the specified KML file.
Namespace : DevExpress.XtraMap
Assembly : DevExpress.XtraMap.v25.2.dll
NuGet Package : DevExpress.Win.Map
public void ExportToKml(
string filePath
)
Public Sub ExportToKml(
filePath As String
)
| Name | Type | Description |
|---|---|---|
| filePath | String |
A String object specifying the file path used to save vector items.
|
This example shows how to export the map vector layer items to the .SVG , .KML , and .SHP file formats.
The following API members are used:
| Member | Description |
|---|---|
| MapItemsLayerBase.ExportToSvg | Exports data from this vector layer to the specified stream using the defined parameters. |
| SvgExportOptions | The options to be applied when exporting the vector layer to the SVG file format. |
| MapItemsLayerBase.ExportToKml | Exports data from this vector layer to the specified stream using the KML file format. |
| MapItemsLayerBase.ExportToShp | Exports this vector layer data to the specified shapefile. |
| ShpExportOptions | The options to be applied when exporting the vector layer to a shapefile. |
| XtraSaveFileDialog | A dialog that allows a user to save a file. Supports DevExpress Skins. |
VectorItemsLayer layer { get { return mapControl.Layers[0] as VectorItemsLayer; } }
//...
private void exportButton_Click(object sender, EventArgs e) {
XtraSaveFileDialog xtraSaveFileDialog = new XtraSaveFileDialog() {
Title = "Export...",
FileName = "Map",
Filter = "SVG Image|*.svg|KML File|*.kml|Shapefile|*.shp"
};
xtraSaveFileDialog.ShowDialog();
if(xtraSaveFileDialog.FileName != string.Empty) {
switch(xtraSaveFileDialog.FilterIndex) {
case 1:
layer.ExportToSvg(xtraSaveFileDialog.FileName, 1, new SvgExportOptions() {
CoordinateSystem = new GeoMapCoordinateSystem(),
InitialMapSize = mapControl.Size
});
break;
case 2:
layer.ExportToKml(xtraSaveFileDialog.FileName);
break;
case 3:
layer.ExportToShp(xtraSaveFileDialog.FileName, new ShpExportOptions {
ExportToDbf = true,
ShapeType = ShapeType.Polygon
});
break;
default:
break;
}
}
}
Private ReadOnly Property layer As VectorItemsLayer
Get
Return CType(mapControl.Layers(0),VectorItemsLayer)
End Get
End Property
'...
Private Sub exportButton_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim xtraSaveFileDialog As XtraSaveFileDialog = New XtraSaveFileDialog() With {
.Title = "Export...",
.FileName = "Map",
.Filter = "SVG Image|*.svg|KML File|*.kml|Shapefile|*.shp"
}
xtraSaveFileDialog.ShowDialog()
If xtraSaveFileDialog.FileName <> String.Empty Then
Select Case xtraSaveFileDialog.FilterIndex
Case 1
layer.ExportToSvg(xtraSaveFileDialog.FileName, 1, New SvgExportOptions() With {
.CoordinateSystem = New GeoMapCoordinateSystem(),
.InitialMapSize = mapControl.Size
})
Case 2
layer.ExportToKml(xtraSaveFileDialog.FileName)
Case 3
layer.ExportToShp(xtraSaveFileDialog.FileName, New ShpExportOptions With {
.ExportToDbf = True,
.ShapeType = ShapeType.Polygon
})
Case Else
End Select
End If
End Sub
See Also