Simple dynamic display application
LoadDynamicLayerCmd.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.Runtime.InteropServices
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.Carto

  ''' <summary>
  ''' Summary description for LoadDynamicLayer.
  ''' </summary>
  <Guid("7f55d7ab-54bf-4887-80e4-8e62436e12b8"), ClassInterface(ClassInterfaceType.None), ProgId("LoadDynamicLayerCmd")> _
  Public NotInheritable Class LoadDynamicLayerCmd : 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)
    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)
    ControlsCommands.Unregister(regKey)

  End Sub

  #End Region
  #End Region

  Private m_hookHelper As IHookHelper

  Public Sub New()
    MyBase.m_category = ".NET Samples"
    MyBase.m_caption = "Add dynamic layer"
    MyBase.m_message = "Add dynamic layer"
    MyBase.m_toolTip = "Add dynamic layer"
    MyBase.m_name = "LoadDynamicLayerCmd"

    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

    If m_hookHelper Is Nothing Then
      m_hookHelper = New HookHelperClass()
    End If

    m_hookHelper.Hook = hook
  End Sub

  ''' <summary>
  ''' Occurs when this command is clicked
  ''' </summary>
  Public Overrides Sub OnClick()
    Dim dynamicMap As IDynamicMap = TryCast(m_hookHelper.FocusMap, IDynamicMap)
    If dynamicMap Is Nothing OrElse dynamicMap.DynamicMapEnabled = False Then
      Return
    End If

    Dim dynamicLayer As MyDynamicLayer = New MyDynamicLayer()
    m_hookHelper.FocusMap.AddLayer(dynamicLayer)
  End Sub

  #End Region
  End Class