Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / Designers / EventSinkActivityDesigner.cs / 1305376 / EventSinkActivityDesigner.cs
namespace System.Workflow.Activities { using System; using System.Text; using System.Reflection; using System.Collections; using System.CodeDom; using System.ComponentModel; using System.ComponentModel.Design; using System.Drawing; using System.Drawing.Drawing2D; using System.Workflow.ComponentModel; using System.Workflow.ComponentModel.Design; using System.Workflow.ComponentModel.Compiler; using System.Workflow.Activities.Common; #region Class HandleExternalEventActivityDesigner [ActivityDesignerTheme(typeof(EventSinkDesignerTheme))] internal class HandleExternalEventActivityDesigner : ActivityDesigner { protected override void PreFilterProperties(IDictionary properties) { base.PreFilterProperties(properties); object corrRefProperty = properties["CorrelationToken"]; HandleExternalEventActivity eventSink = Activity as HandleExternalEventActivity; AddRemoveCorrelationToken(eventSink.InterfaceType, properties, corrRefProperty); Type type = eventSink.InterfaceType; if (type == null) return; AddRemoveCorrelationToken(type, properties, corrRefProperty); eventSink.GetParameterPropertyDescriptors(properties); } private void AddRemoveCorrelationToken(Type interfaceType, IDictionary properties, object corrRefProperty) { if (interfaceType != null) { object[] corrProvAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationProviderAttribute), false); object[] corrParamAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationParameterAttribute), false); if (corrProvAttribs.Length != 0 || corrParamAttribs.Length != 0) { if (!properties.Contains("CorrelationToken")) properties.Add("CorrelationToken", corrRefProperty); return; } } if (properties.Contains("CorrelationToken")) properties.Remove("CorrelationToken"); } protected override void OnActivityChanged(ActivityChangedEventArgs e) { base.OnActivityChanged(e); if (e.Member != null) { if (e.Member.Name == "InterfaceType") { if (Activity.Site != null) { Type interfaceType = e.NewValue as Type; if (interfaceType != null) new ExternalDataExchangeInterfaceTypeFilterProvider(Activity.Site).CanFilterType(interfaceType, true); HandleExternalEventActivity eventSinkActivity = e.Activity as HandleExternalEventActivity; PropertyDescriptorUtils.SetPropertyValue(Activity.Site, TypeDescriptor.GetProperties(Activity)["EventName"], Activity, String.Empty); IExtendedUIService extUIService = (IExtendedUIService)Activity.Site.GetService(typeof(IExtendedUIService)); if (extUIService == null) throw new Exception(SR.GetString(SR.General_MissingService, typeof(IExtendedUIService).FullName)); } } else if ((e.Member.Name == "EventName") && e.Activity is HandleExternalEventActivity) { (e.Activity as HandleExternalEventActivity).ParameterBindings.Clear(); } if (e.Member.Name == "InterfaceType" || e.Member.Name == "EventName" || e.Member.Name == "CorrelationToken") TypeDescriptor.Refresh(e.Activity); } } } #endregion #region EventSinkDesignerTheme internal sealed class EventSinkDesignerTheme : ActivityDesignerTheme { public EventSinkDesignerTheme(WorkflowTheme theme) : base(theme) { this.ForeColor = Color.FromArgb(0xFF, 0x00, 0x00, 0x00); this.BorderColor = Color.FromArgb(0xFF, 0x9C, 0xAE, 0x73); this.BorderStyle = DashStyle.Solid; this.BackColorStart = Color.FromArgb(0xFF, 0xF5, 0xFB, 0xE1); this.BackColorEnd = Color.FromArgb(0xFF, 0xD6, 0xEB, 0x84); this.BackgroundStyle = LinearGradientMode.Horizontal; } } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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