ExpandButtonVisibilityConverter.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / ExpandButtonVisibilityConverter.cs / 1305376 / ExpandButtonVisibilityConverter.cs

                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------

namespace System.Activities.Presentation 
{
    using System.Diagnostics; 
    using System.Globalization; 
    using System.Windows.Data;
    using System.Activities.Presentation.Model; 
    using System.Activities.Presentation.Internal.PropertyEditing.Model;
    using System.Windows;
    using System.Activities.Presentation.View;
    using System.Runtime; 

    internal class ExpandButtonVisibilityConverter : IMultiValueConverter 
    { 

        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) 
        {
            bool isRootDesigner = true;
            if (values[0] is bool)
            { 
                isRootDesigner = (bool)values[0];
            } 
            ModelItem modelItem = values[1] as ModelItem; 
            WorkflowViewElement viewElement = values[2] as WorkflowViewElement;
            Fx.Assert(viewElement != null, "TemplatedParent should be of type WorkflowViewElement"); 
            return GetExpandCollapseButtonVisibility(viewElement);
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) 
        {
            throw FxTrace.Exception.AsError(new NotSupportedException()); 
        } 

        public static Visibility GetExpandCollapseButtonVisibility(WorkflowViewElement viewElement) 
        {
            Visibility visibility = Visibility.Visible;
            if (viewElement == null || viewElement.IsRootDesigner || viewElement.DoesParentAlwaysExpandChild() ||
                viewElement.DoesParentAlwaysCollapseChildren() || viewElement.Content == null || 
                !viewElement.Collapsible || !(viewElement is ActivityDesigner))
            { 
                visibility = Visibility.Collapsed; 
            }
            return visibility; 
        }

    }
} 

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

namespace System.Activities.Presentation 
{
    using System.Diagnostics; 
    using System.Globalization; 
    using System.Windows.Data;
    using System.Activities.Presentation.Model; 
    using System.Activities.Presentation.Internal.PropertyEditing.Model;
    using System.Windows;
    using System.Activities.Presentation.View;
    using System.Runtime; 

    internal class ExpandButtonVisibilityConverter : IMultiValueConverter 
    { 

        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) 
        {
            bool isRootDesigner = true;
            if (values[0] is bool)
            { 
                isRootDesigner = (bool)values[0];
            } 
            ModelItem modelItem = values[1] as ModelItem; 
            WorkflowViewElement viewElement = values[2] as WorkflowViewElement;
            Fx.Assert(viewElement != null, "TemplatedParent should be of type WorkflowViewElement"); 
            return GetExpandCollapseButtonVisibility(viewElement);
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) 
        {
            throw FxTrace.Exception.AsError(new NotSupportedException()); 
        } 

        public static Visibility GetExpandCollapseButtonVisibility(WorkflowViewElement viewElement) 
        {
            Visibility visibility = Visibility.Visible;
            if (viewElement == null || viewElement.IsRootDesigner || viewElement.DoesParentAlwaysExpandChild() ||
                viewElement.DoesParentAlwaysCollapseChildren() || viewElement.Content == null || 
                !viewElement.Collapsible || !(viewElement is ActivityDesigner))
            { 
                visibility = Visibility.Collapsed; 
            }
            return visibility; 
        }

    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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