About the Dynamic display layer Sample
[C#]
AddMyDynamicLayerCmd.cs
using System;
using System.Data;
using System.Drawing;
using System.Runtime.InteropServices;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geometry;
namespace MyDynamicLayer
{
/// <summary>
/// Summary description for AddMyDynamicLayerCmd.
/// </summary>
[Guid("0ddfd2b0-45ba-416a-93c8-c7db41de30e4")]
[ClassInterface(ClassInterfaceType.None)]
[ComVisible(true)]
[ProgId("MyDynamicLayer.AddMyDynamicLayerCmd")]
public sealed class AddMyDynamicLayerCmd : BaseCommand
{
#region COM Registration Function(s)
[ComRegisterFunction()]
[ComVisible(false)]
static void RegisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryRegistration(registerType);
//
// TODO: Add any COM registration code here
//
}
[ComUnregisterFunction()]
[ComVisible(false)]
static void UnregisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryUnregistration(registerType);
//
// TODO: Add any COM unregistration code here
//
}
#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 static void ArcGISCategoryRegistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
ControlsCommands.Register(regKey);
}
/// <summary>
/// Required method for ArcGIS Component Category unregistration -
/// Do not modify the contents of this method with the code editor.
/// </summary>
private static void ArcGISCategoryUnregistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
ControlsCommands.Unregister(regKey);
}
#endregion
#endregion
private IHookHelper m_hookHelper = null;
private MyDynamicLayerClass m_dynamicLayer = null;
private bool m_bIsConnected = false;
private bool m_bOnce = true;
public AddMyDynamicLayerCmd()
{
base.m_category = ".NET Samples";
base.m_caption = "Add Dynamic Layer";
base.m_message = "Add Dynamic Layer";
base.m_toolTip = "Add Dynamic Layer";
base.m_name = "MyDynamicLayer_AddMyDynamicLayerCmd";
try
{
string bitmapResourceName = GetType().Name + ".bmp";
base.m_bitmap = new Bitmap(GetType(), bitmapResourceName);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap");
}
}
#region Overriden Class Methods
/// <summary>
/// Occurs when this command is created
/// </summary>
/// <param name="hook">Instance of the application</param>
public override void OnCreate(object hook)
{
if (hook == null)
return;
if (m_hookHelper == null)
m_hookHelper = new HookHelperClass();
m_hookHelper.Hook = hook;
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
//make sure to switch into dynamic mode
IDynamicMap dynamicMap = m_hookHelper.FocusMap as IDynamicMap;
//make sure that the current Map supports the DynamicDisplay
if (null == dynamicMap)
return;
if (!m_bIsConnected)
{
//make sure to switch into dynamic mode
if (!dynamicMap.DynamicMapEnabled)
dynamicMap.DynamicMapEnabled = true;
//do some initializations...
if (m_bOnce)
{
//initialize the dynamic layer
m_dynamicLayer = new MyDynamicLayerClass();
m_dynamicLayer.Name = "Dynamic Layer";
m_bOnce = false;
}
//make sure that the layer did not get added to the map
bool bLayerHasBeenAdded = false;
if (m_hookHelper.FocusMap.LayerCount > 0)
{
IEnumLayer layers = m_hookHelper.FocusMap.get_Layers(null, false);
layers.Reset();
ILayer layer = layers.Next();
while (layer != null)
{
if (layer is MyDynamicLayerClass)
{
bLayerHasBeenAdded = true;
break;
}
layer = layers.Next();
}
}
if (!bLayerHasBeenAdded)
{
//add the dynamic layer to the map
m_hookHelper.FocusMap.AddLayer(m_dynamicLayer);
}
//connect to the synthetic data source
m_dynamicLayer.Connect();
}
else
{
//disconnect to the synthetic data source
m_dynamicLayer.Disconnect();
//delete the layer from the map
m_hookHelper.FocusMap.DeleteLayer(m_dynamicLayer);
//disable the dynamic display
if (dynamicMap.DynamicMapEnabled)
dynamicMap.DynamicMapEnabled = false;
}
//set the connected flag
m_bIsConnected = !m_bIsConnected;
}
/// <summary>
/// set the state of the button of the command
/// </summary>
public override bool Checked
{
get
{
return m_bIsConnected;
}
}
#endregion
}
}
[Visual Basic .NET]
AddMyDynamicLayerCmd.vb
Imports Microsoft.VisualBasic
Imports System
Imports System.Data
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
Imports ESRI.ArcGIS.Geometry
''' <summary>
''' Summary description for AddMyDynamicLayerCmd.
''' </summary>
<Guid("0ddfd2b0-45ba-416a-93c8-c7db41de30e4"), ClassInterface(ClassInterfaceType.None), ComVisible(True), ProgId("AddMyDynamicLayerCmd")> _
Public NotInheritable Class AddMyDynamicLayerCmd : 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 = Nothing
Private m_dynamicLayer As MyDynamicLayerClass = Nothing
Private m_bIsConnected As Boolean = False
Private m_bOnce As Boolean = True
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 = "AddMyDynamicLayerCmd"
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()
'make sure to switch into dynamic mode
Dim dynamicMap As IDynamicMap = TryCast(m_hookHelper.FocusMap, IDynamicMap)
'make sure that the current Map supports the DynamicDisplay
If Nothing Is dynamicMap Then
Return
End If
If (Not m_bIsConnected) Then
'make sure to switch into dynamic mode
If (Not dynamicMap.DynamicMapEnabled) Then
dynamicMap.DynamicMapEnabled = True
End If
'do some initializations...
If m_bOnce Then
'initialize the dynamic layer
m_dynamicLayer = New MyDynamicLayerClass()
m_dynamicLayer.Name = "Dynamic Layer"
m_bOnce = False
End If
'make sure that the layer did not get added to the map
Dim bLayerHasBeenAdded As Boolean = False
If m_hookHelper.FocusMap.LayerCount > 0 Then
Dim layers As IEnumLayer = m_hookHelper.FocusMap.Layers(Nothing, False)
layers.Reset()
Dim layer As ILayer = layers.Next()
Do While Not layer Is Nothing
If TypeOf layer Is MyDynamicLayerClass Then
bLayerHasBeenAdded = True
Exit Do
End If
layer = layers.Next()
Loop
End If
If (Not bLayerHasBeenAdded) Then
'add the dynamic layer to the map
m_hookHelper.FocusMap.AddLayer(m_dynamicLayer)
End If
'connect to the synthetic data source
m_dynamicLayer.Connect()
Else
'disconnect to the synthetic data source
m_dynamicLayer.Disconnect()
'delete the layer from the map
m_hookHelper.FocusMap.DeleteLayer(m_dynamicLayer)
'disable the dynamic display
If dynamicMap.DynamicMapEnabled Then
dynamicMap.DynamicMapEnabled = False
End If
End If
'set the connected flag
m_bIsConnected = Not m_bIsConnected
End Sub
''' <summary>
''' set the state of the button of the command
''' </summary>
Public Overrides ReadOnly Property Checked() As Boolean
Get
Return m_bIsConnected
End Get
End Property
#End Region
End Class