Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / Rules / Design / LogicalExpressionEditor.cs / 1305376 / LogicalExpressionEditor.cs
using System; using System.CodeDom; using System.ComponentModel; using System.ComponentModel.Design; using System.Security.Permissions; using System.Windows.Forms; using System.Windows.Forms.Design; using System.Drawing.Design; using System.Workflow.ComponentModel; using System.Workflow.ComponentModel.Design; using System.Globalization; using Microsoft.Win32; using System.Workflow.Activities.Common; namespace System.Workflow.Activities.Rules.Design { [PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")] internal sealed class LogicalExpressionEditor : UITypeEditor { private IWindowsFormsEditorService editorService; public LogicalExpressionEditor() { } public override object EditValue(ITypeDescriptorContext typeDescriptorContext, IServiceProvider serviceProvider, object o) { if (typeDescriptorContext == null) throw new ArgumentNullException("typeDescriptorContext"); if (serviceProvider == null) throw new ArgumentNullException("serviceProvider"); object returnVal = o; // Do not allow editing expression if the name is not set. RuleConditionReference conditionDeclaration = typeDescriptorContext.Instance as RuleConditionReference; if (conditionDeclaration == null || conditionDeclaration.ConditionName == null || conditionDeclaration.ConditionName.Length <= 0) throw new ArgumentException(Messages.ConditionNameNotSet); Activity baseActivity = null; IReferenceService rs = serviceProvider.GetService(typeof(IReferenceService)) as IReferenceService; if (rs != null) baseActivity = rs.GetComponent(typeDescriptorContext.Instance) as Activity; RuleConditionCollection conditionDefinitions = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(serviceProvider, Helpers.GetRootActivity(baseActivity)); if (rules != null) conditionDefinitions = rules.Conditions; if (conditionDefinitions != null && !conditionDefinitions.Contains(conditionDeclaration.ConditionName)) { string message = string.Format(CultureInfo.CurrentCulture, Messages.ConditionNotFound, conditionDeclaration.ConditionName); throw new ArgumentException(message); } this.editorService = (IWindowsFormsEditorService)serviceProvider.GetService(typeof(IWindowsFormsEditorService)); if (editorService != null) { CodeExpression experssion = typeDescriptorContext.PropertyDescriptor.GetValue(typeDescriptorContext.Instance) as CodeExpression; try { using (RuleConditionDialog dlg = new RuleConditionDialog(baseActivity, experssion)) { if (DialogResult.OK == editorService.ShowDialog(dlg)) returnVal = dlg.Expression; } } catch (NotSupportedException) { DesignerHelpers.DisplayError(Messages.Error_ExpressionNotSupported, Messages.ConditionEditor, serviceProvider); } } return returnVal; } public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext typeDescriptorContext) { return UITypeEditorEditStyle.Modal; } } [PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")] internal sealed class ConditionNameEditor : UITypeEditor { private IWindowsFormsEditorService editorService; public ConditionNameEditor() { } public override object EditValue(ITypeDescriptorContext typeDescriptorContext, IServiceProvider serviceProvider, object o) { if (typeDescriptorContext == null) throw new ArgumentNullException("typeDescriptorContext"); if (serviceProvider == null) throw new ArgumentNullException("serviceProvider"); object returnVal = o; this.editorService = (IWindowsFormsEditorService)serviceProvider.GetService(typeof(IWindowsFormsEditorService)); if (editorService != null) { Activity baseActivity = null; IReferenceService rs = serviceProvider.GetService(typeof(IReferenceService)) as IReferenceService; if (rs != null) baseActivity = rs.GetComponent(typeDescriptorContext.Instance) as Activity; string conditionName = typeDescriptorContext.PropertyDescriptor.GetValue(typeDescriptorContext.Instance) as string; ConditionBrowserDialog dlg = new ConditionBrowserDialog(baseActivity, conditionName); if (DialogResult.OK == editorService.ShowDialog(dlg)) returnVal = dlg.SelectedName; } return returnVal; } public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext typeDescriptorContext) { return UITypeEditorEditStyle.Modal; } } #region class RuleSetNameEditor [PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")] internal sealed class RuleSetNameEditor : UITypeEditor { private IWindowsFormsEditorService editorService; public RuleSetNameEditor() { } public override object EditValue(ITypeDescriptorContext typeDescriptorContext, IServiceProvider serviceProvider, object o) { if (typeDescriptorContext == null) throw new ArgumentNullException("typeDescriptorContext"); if (serviceProvider == null) throw new ArgumentNullException("serviceProvider"); object returnVal = o; this.editorService = (IWindowsFormsEditorService)serviceProvider.GetService(typeof(IWindowsFormsEditorService)); if (editorService != null) { Activity baseActivity = null; IReferenceService rs = serviceProvider.GetService(typeof(IReferenceService)) as IReferenceService; if (rs != null) baseActivity = rs.GetComponent(typeDescriptorContext.Instance) as Activity; string ruleSetName = null; RuleSetReference ruleSetReference = typeDescriptorContext.PropertyDescriptor.GetValue(typeDescriptorContext.Instance) as RuleSetReference; if (ruleSetReference != null) ruleSetName = ruleSetReference.RuleSetName; RuleSetBrowserDialog dlg = new RuleSetBrowserDialog(baseActivity, ruleSetName); if (DialogResult.OK == editorService.ShowDialog(dlg)) returnVal = typeDescriptorContext.PropertyDescriptor.Converter.ConvertFrom(typeDescriptorContext, CultureInfo.CurrentUICulture, dlg.SelectedName); } return returnVal; } public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext typeDescriptorContext) { return UITypeEditorEditStyle.Modal; } } #endregion #region class RuleSetDefinitionEditor [PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")] internal sealed class RuleSetDefinitionEditor : UITypeEditor { private IWindowsFormsEditorService editorService; public RuleSetDefinitionEditor() { } public override object EditValue(ITypeDescriptorContext typeDescriptorContext, IServiceProvider serviceProvider, object o) { if (typeDescriptorContext == null) throw new ArgumentNullException("typeDescriptorContext"); if (serviceProvider == null) throw new ArgumentNullException("serviceProvider"); object returnVal = o; // Do not allow editing if in debug mode. WorkflowDesignerLoader workflowDesignerLoader = serviceProvider.GetService(typeof(WorkflowDesignerLoader)) as WorkflowDesignerLoader; if (workflowDesignerLoader != null && workflowDesignerLoader.InDebugMode) throw new InvalidOperationException(Messages.DebugModeEditsDisallowed); // Do not allow editing expression if the name is not set. RuleSetReference ruleSetReference = typeDescriptorContext.Instance as RuleSetReference; if (ruleSetReference == null || ruleSetReference.RuleSetName == null || ruleSetReference.RuleSetName.Length <= 0) throw new ArgumentException(Messages.RuleSetNameNotSet); Activity baseActivity = null; IReferenceService rs = serviceProvider.GetService(typeof(IReferenceService)) as IReferenceService; if (rs != null) baseActivity = rs.GetComponent(typeDescriptorContext.Instance) as Activity; RuleSetCollection ruleSetCollection = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(serviceProvider, Helpers.GetRootActivity(baseActivity)); if (rules != null) ruleSetCollection = rules.RuleSets; if (ruleSetCollection != null && !ruleSetCollection.Contains(ruleSetReference.RuleSetName)) { string message = string.Format(CultureInfo.CurrentCulture, Messages.RuleSetNotFound, ruleSetReference.RuleSetName); throw new ArgumentException(message); } this.editorService = (IWindowsFormsEditorService)serviceProvider.GetService(typeof(IWindowsFormsEditorService)); if (editorService != null) { RuleSet ruleSet = ruleSetCollection[ruleSetReference.RuleSetName]; using (RuleSetDialog dlg = new RuleSetDialog(baseActivity, ruleSet)) { if (DialogResult.OK == editorService.ShowDialog(dlg)) returnVal = dlg.RuleSet; } } return returnVal; } public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext typeDescriptorContext) { return UITypeEditorEditStyle.Modal; } } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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