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C# Expression.QueryableSelectMany方法代碼示例

本文整理匯總了C#中System.Linq.Expressions.Expression.QueryableSelectMany方法的典型用法代碼示例。如果您正苦於以下問題:C# Expression.QueryableSelectMany方法的具體用法?C# Expression.QueryableSelectMany怎麽用?C# Expression.QueryableSelectMany使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在System.Linq.Expressions.Expression的用法示例。


在下文中一共展示了Expression.QueryableSelectMany方法的4個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。

示例1: SelectMultiple

 private static Expression SelectMultiple(Expression queryExpression, ResourceProperty property)
 {
     Type iEnumerableElement = BaseServiceProvider.GetIEnumerableElement(property.Type);
     ParameterExpression expression = Expression.Parameter(queryExpression.ElementType(), "element");
     LambdaExpression selector = Expression.Lambda(Expression.ConvertChecked(Expression.Property(expression, property.Name), typeof(IEnumerable<>).MakeGenericType(new Type[] { iEnumerableElement })), new ParameterExpression[] { expression });
     return queryExpression.QueryableSelectMany(selector);
 }
開發者ID:nickchal,項目名稱:pash,代碼行數:7,代碼來源:RequestUriProcessor.cs

示例2: SelectLateBoundPropertyMultiple

        private static Expression SelectLateBoundPropertyMultiple(Expression queryExpression, ResourceProperty property)
        {
            Debug.Assert(queryExpression != null, "queryExpression != null");
            Debug.Assert(property != null && property.Kind == ResourcePropertyKind.ResourceSetReference && !property.CanReflectOnInstanceTypeProperty, "property != null && property.Kind == ResourcePropertyKind.ResourceSetReference && !property.CanReflectOnInstanceTypeProperty");

            Type enumerableElement = BaseServiceProvider.GetIEnumerableElement(property.Type);
            ParameterExpression parameter = Expression.Parameter(queryExpression.ElementType(), "element");
            MethodInfo getter = DataServiceProviderMethods.GetSequenceValueMethodInfo.MakeGenericMethod(enumerableElement);
            Expression body = Expression.Call(null /*instance*/, getter, parameter, Expression.Constant(property));
            LambdaExpression selector = Expression.Lambda(body, parameter);
            return queryExpression.QueryableSelectMany(selector);
        }
開發者ID:AlineGuan,項目名稱:odata.net,代碼行數:12,代碼來源:RequestUriProcessor.cs

示例3: SelectLateBoundPropertyMultiple

 private static Expression SelectLateBoundPropertyMultiple(Expression queryExpression, ResourceProperty property)
 {
     Type iEnumerableElement = BaseServiceProvider.GetIEnumerableElement(property.Type);
     ParameterExpression expression = Expression.Parameter(queryExpression.ElementType(), "element");
     MethodInfo method = DataServiceProviderMethods.GetSequenceValueMethodInfo.MakeGenericMethod(new Type[] { iEnumerableElement });
     LambdaExpression selector = Expression.Lambda(Expression.Call(null, method, expression, Expression.Constant(property)), new ParameterExpression[] { expression });
     return queryExpression.QueryableSelectMany(selector);
 }
開發者ID:nickchal,項目名稱:pash,代碼行數:8,代碼來源:RequestUriProcessor.cs

示例4: SelectMultiple

        private static Expression SelectMultiple(Expression queryExpression, ResourceProperty property)
        {
            Debug.Assert(queryExpression != null, "queryExpression != null");
            Debug.Assert(property.Kind == ResourcePropertyKind.ResourceSetReference, "property == ResourcePropertyKind.ResourceSetReference");

            Type enumerableElement = BaseServiceProvider.GetIEnumerableElement(property.Type);
            Debug.Assert(enumerableElement != null, "Providers should never expose a property as a resource-set if it doesn't implement IEnumerable`1.");

            ParameterExpression parameter = Expression.Parameter(queryExpression.ElementType(), "element");
            UnaryExpression body =
                Expression.ConvertChecked(
                    Expression.Property(parameter, property.Name),
                    typeof(IEnumerable<>).MakeGenericType(enumerableElement));
            LambdaExpression selector = Expression.Lambda(body, parameter);
            return queryExpression.QueryableSelectMany(selector);
        }
開發者ID:AlineGuan,項目名稱:odata.net,代碼行數:16,代碼來源:RequestUriProcessor.cs


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