internal static ExpressionEditor GetExpressionEditorInternal(Type expressionBuilderType, string expressionPrefix, IWebApplication webApp, IServiceProvider serviceProvider)
        {
            if (expressionBuilderType == null)
            {
                throw new ArgumentNullException("expressionBuilderType");
            }
            ExpressionEditor editor = null;

            object[] customAttributes           = expressionBuilderType.GetCustomAttributes(typeof(ExpressionEditorAttribute), true);
            ExpressionEditorAttribute attribute = null;

            if (customAttributes.Length > 0)
            {
                attribute = (ExpressionEditorAttribute)customAttributes[0];
            }
            if (attribute != null)
            {
                string editorTypeName = attribute.EditorTypeName;
                Type   c = Type.GetType(editorTypeName);
                if (c == null)
                {
                    ITypeResolutionService service = (ITypeResolutionService)serviceProvider.GetService(typeof(ITypeResolutionService));
                    if (service != null)
                    {
                        c = service.GetType(editorTypeName);
                    }
                }
                if ((c != null) && typeof(ExpressionEditor).IsAssignableFrom(c))
                {
                    editor = (ExpressionEditor)Activator.CreateInstance(c);
                    editor.SetExpressionPrefix(expressionPrefix);
                }
                IDictionary expressionEditorsCache = GetExpressionEditorsCache(webApp);
                if (expressionEditorsCache != null)
                {
                    expressionEditorsCache[expressionPrefix] = editor;
                }
                IDictionary expressionEditorsByTypeCache = GetExpressionEditorsByTypeCache(webApp);
                if (expressionEditorsByTypeCache != null)
                {
                    expressionEditorsByTypeCache[expressionBuilderType] = editor;
                }
            }
            return(editor);
        }
Exemple #2
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        public static ExpressionEditor GetExpressionEditor(Type expressionBuilderType, IServiceProvider serviceProvider)
        {
            object[] attrs = expressionBuilderType.GetCustomAttributes(typeof(ExpressionEditorAttribute), false);

            if (attrs == null || attrs.Length == 0)
            {
                return(null);
            }

            ExpressionEditorAttribute ee = (ExpressionEditorAttribute)attrs[0];

            Type             editor_type = Type.GetType(ee.EditorTypeName);
            ExpressionEditor editor      = (ExpressionEditor)Activator.CreateInstance(editor_type);

            editor.ExpressionBuilderType = expressionBuilderType;

            return(editor);
        }