要求:在ToolbarControl中添加一个自定义命令,点击可清除当前活动工具。
步骤:
1、创建GIS类,选择Base Command模版,Extending ArcObjects,ArcMap MapControl or PageLayoutControl command,命名为ClearCurrentActiveToolCmd.cs
2、在类中定义IToolbarControl的接口变量m_ToolbarControl,并在类的构造函数中改变所继承的基类属性,其中,base.m_bitmap,即该命令的图标可直接双击本工程中的ClearCurrentActiveToolCmd.bmp修改。
3、在OnCreate重载函数中,将Hook转换为IToolbarControl,并赋给m_ToolbarControl变量。
4、在OnClick重载函数中,将m_ToolbarControl接口变量的CurrentTool属性设置为空。
代码如下:
using System; using System.Drawing; using System.Runtime.InteropServices; using ESRI.ArcGIS.ADF.BaseClasses; using ESRI.ArcGIS.ADF.CATIDs; using ESRI.ArcGIS.Controls; namespace WindowsFormsApplication2_1_2 { /// <summary> /// Summary description for ClearCurrentActiveToolCmd. /// </summary> [Guid("df41e943-e173-4d88-90c1-52d7230ca74a")] [ClassInterface(ClassInterfaceType.None)] [ProgId("WindowsFormsApplication2_1_2.ClearCurruntActiveToolCmd")] public sealed class ClearCurrentActiveToolCmd : 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; private IToolbarControl m_ToolbarControl; public ClearCurrentActiveToolCmd() { // // TODO: Define values for the public properties // base.m_category = "Custom Command"; //localizable text base.m_caption = "清除当前活动工具"; //localizable text base.m_message = "清除当前活动工具"; //localizable text base.m_toolTip = "清除当前活动工具"; //localizable text base.m_name = "清除当前活动工具"; //unique id, non-localizable (e.g. "MyCategory_MyCommand") try { // // TODO: change bitmap name if necessary // string bitmapResourceName = GetType().Name + ".bmp"; base.m_bitmap = new Bitmap(GetType(), bitmapResourceName); } catch (Exception ex) { System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap"); } } #region Overridden 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; // TODO: Add other initialization code } /// <summary> /// Occurs when this command is clicked /// </summary> public override void OnClick() { if (m_hookHelper.Hook is IToolbarControl) { m_ToolbarControl = m_hookHelper.Hook as IToolbarControl; m_ToolbarControl.CurrentTool = null; } // TODO: Add ClearCurruntActiveToolCmd.OnClick implementation } #endregion } }
5、在Form1.cs的窗体load事件中添加代码,将该命令添加到toolstrip上。
axToolbarControl1.AddItem(new ClearCurrentActiveToolCmd(), -1, -1, false, 0, esriCommandStyles.esriCommandStyleIconOnly);
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