59 lines
2.4 KiB
C#
59 lines
2.4 KiB
C#
//----------------------------------------------------------------
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// <copyright company="Microsoft Corporation">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//----------------------------------------------------------------
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namespace Microsoft.Activities.Presentation
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{
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using System.Activities.Expressions;
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using System.Activities.Presentation.Expressions;
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using System.Activities.Presentation.Model;
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using System.Diagnostics;
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.Versioning;
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using Microsoft.VisualBasic.Activities;
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internal static class ExpressionSettingHelper
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{
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internal static readonly string VBExpressionLanguageName = (new VisualBasicValue<string>() as ITextExpression).Language;
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[SuppressMessage("Reliability", "Reliability101", Justification = "We can't use Fx.Assert here since this is not a framework assembly.")]
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internal static string GetRootEditorSetting(ModelTreeManager modelTreeManager, FrameworkName targetFramework)
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{
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Debug.Assert(modelTreeManager != null, "modelTreeManager is null.");
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Debug.Assert(targetFramework != null, "targetFramework is null.");
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string globalEditorSetting = null;
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if (Is45OrHigher(targetFramework))
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{
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if (modelTreeManager != null)
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{
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ModelItem rootItem = modelTreeManager.Root;
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if (rootItem != null)
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{
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object root = rootItem.GetCurrentValue();
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globalEditorSetting = ExpressionActivityEditor.GetExpressionActivityEditor(root);
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if (string.IsNullOrEmpty(globalEditorSetting))
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{
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globalEditorSetting = VBExpressionLanguageName;
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}
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}
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}
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}
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else
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{
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// When the target framework is less than 4.5, the root setting is ignored and always return VB
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globalEditorSetting = VBExpressionLanguageName;
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}
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return globalEditorSetting;
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}
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private static bool Is45OrHigher(FrameworkName frameworkName)
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{
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return frameworkName.Version.Major > 4 || (frameworkName.Version.Major == 4 && frameworkName.Version.Minor >= 5);
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}
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}
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}
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