[GIS] Selecting Multiple Layers under Table of Contents

arcgis-10.0arcgis-engine

I have been trying out what ARCMap10 can do in terms of the TOC. And their TOC has a lot of good functionalities.

I really want to figure out how to Group/Drag and Drop/ and select multiple layers.

As for this question, do you guys know how to select multiple layer in the TOC?
This is for ArcEngine 10 .Net

Best Answer

Bad news, you can't select multiple layers in the TOC, but there is an ideas that you can vote for here: http://ideas.arcgis.com/ideaView?id=0873000000089hK

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ArcGIS Layers – How to Let User Only Rearrange Layers in a Group Layer

Not as visually cool but at least it work, use the MoveLayerEx in IMapLayers can be used to move a layer in a group layer, use the same grouplayer as source and target and apply the index that the layer shall have in the group. Made a small code sample:

Private Sub MoveGroupLayerItem(ByVal up As Boolean)
        Dim layer As ILayer = getLayer()
        Dim layerIndex As Integer = getLayerGroupIndex()

        Dim map As IMap = axMapControl1.ActiveView.FocusMap

        Dim mapLayers As IMapLayers = CType(map, IMapLayers)

        Dim groupLayer As IGroupLayer = CType(map.Layer(0), IGroupLayer)
        Dim compLayer As ICompositeLayer = CType(groupLayer, ICompositeLayer)


        If up Then
            If layerIndex > 0 Then
                mapLayers.MoveLayerEx(groupLayer, groupLayer, layer, layerIndex - 1)
            End If
        Else
            If (layerIndex < compLayer.Count - 1) Then
                mapLayers.MoveLayerEx(groupLayer, groupLayer, layer, layerIndex + 1)
            End If
        End If

        axMapControl1.Refresh(esriViewDrawPhase.esriViewAll, Nothing, Nothing)
    End Sub

[GIS] ArcObjects VB.Net – Looping through Layers from TOC and ListBox

Why not create a .Net generic list and fill it with the layers, something like this:

dim layerList as List(Of ILayer) = new List(Of ILayer)
layerList.Add(layer)

Best Answer

Related Solutions

ArcGIS Layers – How to Let User Only Rearrange Layers in a Group Layer

[GIS] ArcObjects VB.Net – Looping through Layers from TOC and ListBox

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