IMapLayerInfo Interface

Provides access to the available properties of a map layer info object.

When To Use

Members

Name Description
Read-only property CanFind Indicates if the layer supports the Find operation.
Read-only property CanIdentify Indicates if the layer supports the Identify operation.
Read-only property CanScaleSymbols Indicates if the layer supports symbol scaling.
Read-only property CanSelect Indicates if the layer supports feature selection.
Read-only property Description The description of the layer. This property is set in the General tab of the Layer Properties dialog.
Read-only property DisplayField Primary display field.
Read-only property Extent The geographic extent of the layer.
Read-only property FieldAliases Array of strings that contains field alias for each field in Fields property.
Read-only property Fields Array of attribute fields contained in the layer.
Read-only property HasAttributes Indicates if the layer has attributes.
Read-only property HasHyperlinks Indicates if the layer has hyperlinks.
Read-only property HasLabels Indicates if the layer has labels to turn on and off.
Read-only property ID The layer identifier. This ID is used throughout to uniquely identify the layer for all requests.
Read-only property IsComposite Indicates if the layer is a composite layer.
Read-only property IsFeatureLayer Indicates if the layer is a feature layer.
Read-only property MaxScale The maximum visible scale for the layer.
Read-only property MinScale The minimum visible scale for the layer.
Read-only property Name The name of the layer.
Read-only property ParentLayerID If the layer is a member of a composite layer, this property identifies the parent layer.
Read-only property SourceDescription The description of the source information for the layer.
Read-only property SubLayers The list identifying the sublayers if the layer is a composite layer.
Read-only property Type The layer type.

IMapLayerInfo.CanFind Property

Indicates if the layer supports the Find operation.

Public ReadOnly Property CanFind As Boolean
public bool CanFind {get;}

IMapLayerInfo.CanIdentify Property

Indicates if the layer supports the Identify operation.

Public ReadOnly Property CanIdentify As Boolean
public bool CanIdentify {get;}

IMapLayerInfo.CanScaleSymbols Property

Indicates if the layer supports symbol scaling.

Public ReadOnly Property CanScaleSymbols As Boolean
public bool CanScaleSymbols {get;}

IMapLayerInfo.CanSelect Property

Indicates if the layer supports feature selection.

Public ReadOnly Property CanSelect As Boolean
public bool CanSelect {get;}

IMapLayerInfo.Description Property

The description of the layer. This property is set in the General tab of the Layer Properties dialog.

Public ReadOnly Property Description As String
public string Description {get;}

IMapLayerInfo.DisplayField Property

Primary display field.

Public ReadOnly Property DisplayField As String
public string DisplayField {get;}

IMapLayerInfo.Extent Property

The geographic extent of the layer.

Public ReadOnly Property Extent As IEnvelope
public IEnvelope Extent {get;}

IMapLayerInfo.FieldAliases Property

Array of strings that contains field alias for each field in Fields property.

Public ReadOnly Property FieldAliases As IStringArray
public IStringArray FieldAliases {get;}

IMapLayerInfo.Fields Property

Array of attribute fields contained in the layer.

Public ReadOnly Property Fields As IFields
public IFields Fields {get;}

IMapLayerInfo.HasAttributes Property

Indicates if the layer has attributes.

Public ReadOnly Property HasAttributes As Boolean
public bool HasAttributes {get;}

Indicates if the layer has hyperlinks.

Public ReadOnly Property HasHyperlinks As Boolean
public bool HasHyperlinks {get;}

IMapLayerInfo.HasLabels Property

Indicates if the layer has labels to turn on and off.

Public ReadOnly Property HasLabels As Boolean
public bool HasLabels {get;}

IMapLayerInfo.ID Property

The layer identifier. This ID is used throughout to uniquely identify the layer for all requests.

Public ReadOnly Property ID As Integer
public int ID {get;}

Remarks

ID is a unique identifier for a layer in a given instance of ArcGIS for Server map service. It is important to note that ID, SourceID and the index of layers (see MapLayerInfos) in map document are not the same. SourceID is used for map service interaction with the GPServer.

When a map service is published, a unique ID is assigned to all layers within the original map document (.mxd) starting from 0 (zero). This ID is accessible from IMapServerObjects2, MapLayerInfo, LayerDescription, MapServerLegendInfo, MapServerIdentifyResult, MapServerFindResult and FeatureExtent.

ID is not re-usable and does not change if the order of the layer is changed. This would change the how each layer is ordered in the index of layers. Adding new a layer results in a new ID being assigned. IDs keep incrementing as new layers are added to the map service. The limit of id numbers available is the limit of Long data type.

Please note that if the layer order in the TOC of the original map is changed or if layers are added/removed, the IDs will change accordingly.

IMapLayerInfo.IsComposite Property

Indicates if the layer is a composite layer.

Public ReadOnly Property IsComposite As Boolean
public bool IsComposite {get;}

IMapLayerInfo.IsFeatureLayer Property

Indicates if the layer is a feature layer.

Public ReadOnly Property IsFeatureLayer As Boolean
public bool IsFeatureLayer {get;}

IMapLayerInfo.MaxScale Property

The maximum visible scale for the layer.

Public ReadOnly Property MaxScale As Double
public double MaxScale {get;}

IMapLayerInfo.MinScale Property

The minimum visible scale for the layer.

Public ReadOnly Property MinScale As Double
public double MinScale {get;}

IMapLayerInfo.Name Property

The name of the layer.

Public ReadOnly Property Name As String
public string Name {get;}

IMapLayerInfo.ParentLayerID Property

If the layer is a member of a composite layer, this property identifies the parent layer.

Public ReadOnly Property ParentLayerID As Integer
public int ParentLayerID {get;}

IMapLayerInfo.SourceDescription Property

The description of the source information for the layer.

Public ReadOnly Property SourceDescription As String
public string SourceDescription {get;}

Remarks

_With ArcGIS Server 9.3 release, this property is deprecated and always returns empty string._

IMapLayerInfo.SubLayers Property

The list identifying the sublayers if the layer is a composite layer.

Public ReadOnly Property SubLayers As ILongArray
public ILongArray SubLayers {get;}

IMapLayerInfo.Type Property

The layer type.

Public ReadOnly Property Type As String
public string Type {get;}

Classes that implement IMapLayerInfo

Classes Description
MapLayerInfo The Map Layer Info coclass provides read-only information about a layer in a map.

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