RefreshLayerCmd.cs
// Copyright 2012 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. // using System; 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; namespace RSSWeatherLayer { /// <summary> /// Refreshes the layer's data (runs the layer update thread) /// </summary> [Guid("30FD7DC6-6696-4101-99AD-4C8CDE968E4B")] [ProgId("RSSWeatherLayer.RefreshLayerCmd")] [ComVisible(true)] public class RefreshLayerCmd: 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 //Class members private IHookHelper m_hookHelper = null; /// <summary> /// CTor /// </summary> public RefreshLayerCmd() { base.m_category = "Weather"; base.m_caption = "Refresh layer"; base.m_message = "Refresh the layer"; base.m_toolTip = "Refresh layer"; base.m_name = base.m_category + "_" + base.m_caption; try { base.m_bitmap = new Bitmap(GetType().Assembly.GetManifestResourceStream(GetType(), "RefreshLayerCmd.bmp")); } 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) { //Instantiate the hook helper if (m_hookHelper == null) m_hookHelper = new HookHelperClass(); //set the hook m_hookHelper.Hook = hook; } /// <summary> /// Occurs when this command is clicked /// </summary> public override void OnClick() { try { if (0 == m_hookHelper.FocusMap.LayerCount) return; RSSWeatherLayerClass weatherLayer = null; //get the weather layer IEnumLayer layers = m_hookHelper.FocusMap.get_Layers(null, false); layers.Reset(); ILayer layer = layers.Next(); while (layer != null) { if (layer is RSSWeatherLayerClass) { weatherLayer = (RSSWeatherLayerClass)layer; weatherLayer.Refresh(); return; } layer = layers.Next(); } } catch (Exception ex) { System.Diagnostics.Trace.WriteLine(ex.Message); } } #endregion } }