ConditionalBranch.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / ConditionalBranch.cs / 1305376 / ConditionalBranch.cs
                        

                        
                            namespace System.Workflow.Activities 
{
    #region Imports

    using System; 
    using System.Text;
    using System.Reflection; 
    using System.Collections; 
    using System.CodeDom;
    using System.Collections.Generic; 
    using System.ComponentModel;
    using System.ComponentModel.Design;
    using System.Drawing;
    using System.Workflow.ComponentModel; 
    using System.Workflow.ComponentModel.Design;
    using System.Workflow.ComponentModel.Compiler; 
    using System.Workflow.Activities.Common; 

    #endregion 


    [Designer(typeof(IfElseBranchDesigner), typeof(IDesigner))]
    [ToolboxItem(false)] 
    [ActivityValidator(typeof(IfElseBranchValidator))]
    [ToolboxBitmap(typeof(IfElseBranchActivity), "Resources.DecisionBranch.bmp")] 
    [SRCategory(SR.Standard)] 
    public sealed class IfElseBranchActivity: SequenceActivity
    { 
        public IfElseBranchActivity()
        {
        }
 
        public IfElseBranchActivity(string name)
            : base(name) 
        { 
        }
 
        //metadata properties go here
        public static readonly DependencyProperty ConditionProperty = DependencyProperty.Register("Condition", typeof(ActivityCondition), typeof(IfElseBranchActivity), new PropertyMetadata(DependencyPropertyOptions.Metadata));

 
        [SRCategory(SR.Conditions)]
        [SRDescription(SR.ConditionDescr)] 
        [RefreshProperties(RefreshProperties.Repaint)] 
        [DefaultValue(null)]
        public ActivityCondition Condition 
        {
            get
            {
                return base.GetValue(ConditionProperty) as ActivityCondition; 
            }
            set 
            { 
                base.SetValue(ConditionProperty, value);
            } 
        }
    }

    internal sealed class IfElseBranchValidator : CompositeActivityValidator 
    {
        public override ValidationErrorCollection Validate(ValidationManager manager, object obj) 
        { 
            ValidationErrorCollection validationErrors = base.Validate(manager, obj);
 
            IfElseBranchActivity ifElseBranch = obj as IfElseBranchActivity;
            if (ifElseBranch == null)
                throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(IfElseBranchActivity).FullName), "obj");
 
            // parent must be conditional
            IfElseActivity ifElse = ifElseBranch.Parent as IfElseActivity; 
            if(ifElse == null) 
                validationErrors.Add(new ValidationError(SR.GetString(SR.Error_ConditionalBranchParentNotConditional), ErrorNumbers.Error_ConditionalBranchParentNotConditional));
 
            bool isLastBranch = (ifElse != null && ifElse.EnabledActivities.Count > 1 && (ifElse.EnabledActivities[ifElse.EnabledActivities.Count - 1] == ifElseBranch));
            if (!isLastBranch || ifElseBranch.Condition != null)
            {
                if (ifElseBranch.Condition == null) 
                    validationErrors.Add(ValidationError.GetNotSetValidationError("Condition"));
            } 
            return validationErrors; 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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