MapMemberPosition Property (BulkLayerCreationParams)

In This Topic

Gets and sets the mapMember position. Specifies whether the mapMember should be auto positioned or be on the top or at the bottom. Default value is MapMemberPosition.AutoArrange.

Syntax

C#
Visual Basic (Declaration)

public new MapMemberPosition MapMemberPosition {get; set;}

Public Shadows Property MapMemberPosition As MapMemberPosition

Remarks

To specify a specific index for the mapMember to be positioned, set this to MapMemberPosition.Index and set the MapMemberIndex.

If the set of layers to be added are specified by a set of LayerCreationParams objects, then this property overrides the individual MapMemberPosition properties.

Example

Create multiple layers with BulkLayerCreationParams 1

var uriShp = new Uri(@"c:\data\roads.shp");
var uriSde = new Uri(@"c:\MyDataConnections\MySDE.sde\Census");
var uri = new Uri(@"http://sampleserver6.arcgisonline.com/arcgis/rest/services/NapervilleShelters/FeatureServer/0");

var uris = new List<Uri>() { uriShp, uriSde, uri }; ;

// set the index and visibility
var blkParams = new BulkLayerCreationParams(uris);
blkParams.MapMemberPosition = MapMemberPosition.Index;
blkParams.MapMemberIndex = 2;
blkParams.IsVisible = false;

var layers = LayerFactory.Instance.CreateLayers(blkParams, MapView.Active.Map);

Create multiple layers with BulkLayerCreationParams 2 - Valid

var uriShp = new Uri(@"c:\data\roads.shp");
var uriSde = new Uri(@"c:\MyDataConnections\MySDE.sde\Census");
var uri = new Uri(@"http://sampleserver6.arcgisonline.com/arcgis/rest/services/NapervilleShelters/FeatureServer/0");

var lcpShp = new FeatureLayerCreationParams(uriShp);
lcpShp.Name = "Roads";
lcpShp.IsVisible = false;
lcpShp.DefinitionQuery = new DefinitionQuery("shpQuery", "OBJECTID > 10");

var lcpSde = new FeatureLayerCreationParams(uriSde);
lcpSde.Name = "Census Polygons";
lcpSde.IsVisible = true;

var lcpService = new FeatureLayerCreationParams(uri);
lcpService.Name = "Shelters";
lcpService.IsVisible = true;
// set some renderer here ...
//lcpService.RendererDefinition = ...

var lcps = new List<FeatureLayerCreationParams>();
lcps.Add(lcpShp);
lcps.Add(lcpSde);
lcps.Add(lcpService);

var blkParams = new BulkLayerCreationParams(lcps);
// set the positioning on the BulkLayerCreationParams
blkParams.MapMemberPosition = MapMemberPosition.Index;
blkParams.MapMemberIndex = 0;

var layers = LayerFactory.Instance.CreateLayers(blkParams, MapView.Active.Map);

Create multiple layers with BulkLayerCreationParams - Using RollbackBehavior

var uriShp = new Uri(@"c:\data\roads.shp");
var uriSde = new Uri(@"c:\MyDataConnections\MySDE.sde\Census");
var uri = new Uri(@"http://sampleserver6.arcgisonline.com/arcgis/rest/services/NapervilleShelters/FeatureServer/0");

var lcpShp = new FeatureLayerCreationParams(uriShp);
lcpShp.Name = "Roads";
lcpShp.IsVisible = false;
lcpShp.DefinitionQuery = new DefinitionQuery("shpQuery", "OBJECTID > 10");

var lcpSde = new FeatureLayerCreationParams(uriSde);
lcpSde.Name = "Census Polygons";
lcpSde.IsVisible = true;

var lcpService = new FeatureLayerCreationParams(uri);
lcpService.Name = "Shelters";
lcpService.IsVisible = true;
// set some renderer here ...
//lcpService.RendererDefinition = ...

var lcps = new List<FeatureLayerCreationParams>();
lcps.Add(lcpShp);
lcps.Add(lcpSde);
lcps.Add(lcpService);

var blkParams = new BulkLayerCreationParams(lcps);
// set the positioning on the BulkLayerCreationParams
blkParams.MapMemberPosition = MapMemberPosition.Index;
blkParams.MapMemberIndex = 0;

// set the rollback behavior
// - rollback if one or more layers cannot be created due to an invalid data source
blkParams.RollbackBehavior = LayerCreationRollbackBehavior.RollbackOnMissingLayers;

var layers = LayerFactory.Instance.CreateLayers(blkParams, MapView.Active.Map);

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.6 or higher.

Reference

BulkLayerCreationParams Class
BulkLayerCreationParams Members

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