ESRI.ArcGIS.ADF.IMS
Layers Property
See Also Example

ESRI.ArcGIS.ADF.IMS.Carto Namespace > MapView Class : Layers Property

Visual Basic (Declaration)

Visual Basic (Usage)

C#

Gets or sets the layers of the current MapView.

Syntax

Visual Basic (Declaration)
Public Property Layers As LayerCollection

Visual Basic (Usage)	Copy Code
`Dim instance As MapView Dim value As LayerCollection instance.Layers = value value = instance.Layers`

C#
public LayerCollection Layers {get; set;}

Example

The following example gets a reference to the map's layer colleciton, then iterates through the collection, and prints out whether the layer is a feature (vector) layer or image layer. The code assumes an existing MapView object.

C# Copy Code

C#	Copy Code
StringBuilder sb = new StringBuilder(); LayerCollection mapLayers = mapView.Layers; for (int i = 0; i < mapLayers.Count; i++) { if (mapLayers[i] is FeatureLayer) { FeatureLayer fLyr = (FeatureLayer) mapLayers[i]; sb.Append(fLyr.Name + " is a feature layer, type " + fLyr.Type.ToString() + "<br>"); } else if (mapLayers[i] is ImageLayer) { ImageLayer iLyr = (ImageLayer) mapLayers[i]; sb.Append(iLyr.Name + " is an image layer.<br>"); } } Label1.Text = sb.ToString();

StringBuilder sb = new StringBuilder(); 

  

LayerCollection mapLayers = mapView.Layers; 

  

for (int i = 0; i < mapLayers.Count; i++) 

{ 

    if (mapLayers[i] is FeatureLayer) 

    { 

        FeatureLayer fLyr = (FeatureLayer) mapLayers[i]; 

        sb.Append(fLyr.Name + " is a feature layer, type " + fLyr.Type.ToString() + "<br>"); 

    } 

    else if (mapLayers[i] is ImageLayer) 

    { 

        ImageLayer iLyr = (ImageLayer) mapLayers[i]; 

        sb.Append(iLyr.Name + " is an image layer.<br>"); 

    } 

} 

Label1.Text = sb.ToString();

Visual Basic Copy Code

Visual Basic	Copy Code
Dim sb As New StringBuilder() Dim mapLayers As LayerCollection = mapView.Layers Dim i As Integer For i = 0 To mapLayers.Count-1 If mapLayers(i) Is FeatureLayer FeatureLayer fLyr = CType(mapLayers(i), FeatureLayer) sb.Append(fLyr.Name + " is a feature layer, type " + fLyr.Type.ToString() + "<br>") Else If mapLayers(i) Is ImageLayer ImageLayer iLyr = CType(mapLayers(i), ImageLayer) sb.Append(iLyr.Name + " is an image layer.<br>") End If Next Label1.Text = sb.ToString()

Dim sb As New StringBuilder()





Dim mapLayers As LayerCollection = mapView.Layers


Dim i As Integer





For i = 0 To mapLayers.Count-1





    If mapLayers(i) Is FeatureLayer





        FeatureLayer fLyr = CType(mapLayers(i), FeatureLayer)


        sb.Append(fLyr.Name + " is a feature layer, type " + fLyr.Type.ToString() + "<br>")





    Else If mapLayers(i) Is ImageLayer





        ImageLayer iLyr = CType(mapLayers(i), ImageLayer)


        sb.Append(iLyr.Name + " is an image layer.<br>")


    End If


Next


Label1.Text = sb.ToString()

Remarks

Layers allows access to the layers in the map. Use the layer collection to access an individual layer, from which layer properties can be read and set. For example, if you want to set the visibility of a layer, obtain the layer from this collection and set its Visible property.

Syntax

Example

Remarks

See Also

Reference