Simple point plug-in data source
AddSimplePointLayerCmd.vb
' Copyright 2010 ESRI
' 
' All rights reserved under the copyright laws of the United States
' and applicable international laws, treaties, and conventions.
' 
' You may freely redistribute and use this sample code, with or
' without modification, provided you include the original copyright
' notice and use restrictions.
' 
' See the use restrictions.
' 

Imports Microsoft.VisualBasic
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Runtime.InteropServices
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.Carto
Imports ESRI.ArcGIS.Geodatabase

  ''' <summary>
  ''' This command 
  ''' </summary>
<Guid("b358ec88-8304-4d19-a7af-80d63566e4d1"), ClassInterface(ClassInterfaceType.None), ProgId("SimplePointPlugin.AddSimplePointLayerCmd")> _
Public NotInheritable Class AddSimplePointLayerCmd
  Inherits BaseCommand
#Region "COM Registration Function(s)"
  <ComRegisterFunction(), ComVisible(False)> _
  Private Shared Sub RegisterFunction(ByVal registerType As Type)
    ' Required for ArcGIS Component Category Registrar support
    ArcGISCategoryRegistration(registerType)

    '
    ' TODO: Add any COM registration code here
    '
  End Sub

  <ComUnregisterFunction(), ComVisible(False)> _
  Private Shared Sub UnregisterFunction(ByVal registerType As Type)
    ' Required for ArcGIS Component Category Registrar support
    ArcGISCategoryUnregistration(registerType)

    '
    ' TODO: Add any COM unregistration code here
    '
  End Sub

#Region "ArcGIS Component Category Registrar generated code"
  ''' <summary>
  ''' Required method for ArcGIS Component Category registration -
  ''' Do not modify the contents of this method with the code editor.
  ''' </summary>
  Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type)
    Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
    MxCommands.Register(regKey)
    ControlsCommands.Register(regKey)
  End Sub
  ''' <summary>
  ''' Required method for ArcGIS Component Category unregistration -
  ''' Do not modify the contents of this method with the code editor.
  ''' </summary>
  Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type)
    Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
    MxCommands.Unregister(regKey)
    ControlsCommands.Unregister(regKey)
  End Sub

#End Region
#End Region

  Private m_hookHelper As IHookHelper = Nothing
  Public Sub New()
    MyBase.m_category = ".NET Samples"
    MyBase.m_caption = "Add SimplePoint layer"
    MyBase.m_message = "Add SimplePoint layer data source to the map"
    MyBase.m_toolTip = "Add SimplePoint layer"
    MyBase.m_name = "SimplePointPlugin_AddSimplePointLayerCmd"

    Try
      Dim bitmapResourceName As String = Me.GetType().Name & ".bmp"
      MyBase.m_bitmap = New Bitmap(Me.GetType(), bitmapResourceName)
    Catch ex As Exception
      System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap")
    End Try
  End Sub

#Region "Overridden Class Methods"

    ''' <summary>
    ''' Occurs when this command is created
    ''' </summary>
    ''' <param name="hook">Instance of the application</param>
    Public Overrides Sub OnCreate(ByVal hook As Object)
        If hook Is Nothing Then
            Return
        End If

        Try
            m_hookHelper = New HookHelperClass()
            m_hookHelper.Hook = hook
            If m_hookHelper.ActiveView Is Nothing Then
                m_hookHelper = Nothing
            End If
        Catch
            m_hookHelper = Nothing
        End Try

        If m_hookHelper Is Nothing Then
            MyBase.m_enabled = False
        Else
            MyBase.m_enabled = True
        End If
    End Sub

    ''' <summary>
    ''' Occurs when this command is clicked
    ''' </summary>
    Public Overrides Sub OnClick()
        Try
            Dim dlg As OpenSimplePointDlg = New OpenSimplePointDlg(m_hookHelper)
            dlg.Show()

            '//get the type using the ProgID
            'Type t = Type.GetTypeFromProgID("esriGeoDatabase.SimplePointPluginWorkspaceFactory");
            '//Use activator in order to create an instance of the workspace factory
            'IWorkspaceFactory workspaceFactory = Activator.CreateInstance(t) as IWorkspaceFactory;

            'string path = GetFileName();
            'if (string.Empty == path)
            '  return;

            '//open the workspace
            'IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspaceFactory.OpenFromFile(@"C:\Data\Data", 0);

            '//get a featureclass from the workspace
            'IFeatureClass featureClass = featureWorkspace.OpenFeatureClass("points");

            '//create a new feature layer and add it to the map
            'IFeatureLayer featureLayer = new FeatureLayerClass();
            'featureLayer.Name = featureClass.AliasName;
            'featureLayer.FeatureClass = featureClass;
            'm_hookHelper.FocusMap.AddLayer((ILayer)featureLayer);
        Catch ex As Exception
            System.Diagnostics.Trace.WriteLine(ex.Message)
        End Try
    End Sub

#End Region
End Class