public static bool GreaterThan( FilterOperation operation, IInputType type, IValueNode value, IQueryableFilterVisitorContext context, [NotNullWhen(true)] out Expression?result) { object parsedValue = type.ParseLiteral(value); if (parsedValue == null) { context.ReportError( ErrorHelper.CreateNonNullError(operation, type, value, context)); result = null; return(false); } if (operation.Type == typeof(IComparable) && type.IsInstanceOfType(value)) { Expression property = GetProperty(operation, context); parsedValue = ParseValue(parsedValue, operation, type, context); result = FilterExpressionBuilder.GreaterThan(property, parsedValue); return(true); } else { throw new InvalidOperationException(); } }
protected override bool TryCreateExpression( FilterOperation operation, MemberExpression property, Func <object> parseValue, out Expression expression) { switch (operation.Kind) { case FilterOperationKind.GreaterThan: expression = FilterExpressionBuilder.GreaterThan( property, parseValue()); return(true); case FilterOperationKind.NotGreaterThan: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.GreaterThan( property, parseValue()) ); return(true); default: expression = null; return(false); } }
public bool TryHandle( FilterOperation operation, IInputType type, IValueNode value, Expression instance, ITypeConversion converter, out Expression expression) { if (operation.Type == typeof(IComparable) && value is IValueNode <IComparable> s) { MemberExpression property = Expression.Property(instance, operation.Property); var parsedValue = type.ParseLiteral(value); if (operation.Property.PropertyType .IsInstanceOfType(parsedValue)) { parsedValue = converter.Convert( typeof(object), operation.Property.PropertyType, parsedValue); } switch (operation.Kind) { case FilterOperationKind.Equals: expression = FilterExpressionBuilder.Equals( property, parsedValue); return(true); case FilterOperationKind.NotEquals: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.Equals( property, parsedValue) ); return(true); case FilterOperationKind.GreaterThan: expression = FilterExpressionBuilder.GreaterThan( property, parsedValue); return(true); case FilterOperationKind.NotGreaterThan: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.GreaterThan( property, parsedValue) ); return(true); case FilterOperationKind.GreaterThanOrEqual: expression = FilterExpressionBuilder.GreaterThanOrEqual( property, parsedValue); return(true); case FilterOperationKind.NotGreaterThanOrEqual: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.GreaterThanOrEqual( property, parsedValue) ); return(true); case FilterOperationKind.LowerThan: expression = FilterExpressionBuilder.LowerThan( property, parsedValue); return(true); case FilterOperationKind.NotLowerThan: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.LowerThan( property, parsedValue)); return(true); case FilterOperationKind.LowerThanOrEqual: expression = FilterExpressionBuilder.LowerThanOrEqual( property, parsedValue); return(true); case FilterOperationKind.NotLowerThanOrEqual: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.LowerThanOrEqual( property, parsedValue)); return(true); } } if (operation.Type == typeof(IComparable) && value is ListValueNode li) { MemberExpression property = Expression.Property(instance, operation.Property); var parsedValue = type.ParseLiteral(value); switch (operation.Kind) { case FilterOperationKind.In: expression = FilterExpressionBuilder.In( property, operation.Property.PropertyType, parsedValue); return(true); case FilterOperationKind.NotIn: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.In( property, operation.Property.PropertyType, parsedValue) ); return(true); } } expression = null; return(false); }