DevExtreme.AspNet.Data Represents a data aggregator. The type of the data items to be aggregated. Allows reading data item properties. Initializes a new Aggregator class instance with an object that allows reading data item properties. An object that allows reading data item properties. A callback invoked once for each data item. A data item. The name or path to the property whose value should be aggregated. A callback invoked at the aggregation's final stage. The result of the aggregation. Provides methods that manipulate custom aggregators. Registers a custom aggregator. The aggregator's string identifier. The aggregator's type declaration without the generic type parameter T. Provides static methods for loading data from collections that implement the or interface. Loads data from a collection that implements the interface. The type of objects in the collection. A collection that implements the interface. Data processing settings when loading data. The load result. Loads data from a collection that implements the interface. The type of objects in the collection. A collection that implements the interface. Data processing settings when loading data. The load result. Asynchronously loads data from a collection that implements the interface. The type of objects in the collection. A collection that implements the interface. Data processing settings when loading data. A object that delivers a cancellation notice to the running operation. A object that represents the asynchronous operation. The task result contains the load result. A class with properties that specify data processing settings. A global default value for the property A flag indicating whether the total number of data objects is required. A flag indicating whether the number of top-level groups is required. A flag indicating whether the current query is made to get the total number of data objects. The number of data objects to be skipped from the start of the resulting set. The number of data objects to be loaded. A sort expression. A group expression. A filter expression. A total summary expression. A group summary expression. A select expression. An array of data fields that limits the expression. The applied select expression is the intersection of and . A flag that indicates whether the LINQ provider should execute the select expression. If set to false, the select operation is performed in memory. A flag that indicates whether the LINQ provider should execute grouping. If set to false, the entire dataset is loaded and grouped in memory. An array of primary keys. The data field to be used for sorting by default. A flag that indicates whether filter expressions should include a ToLower() call that makes string comparison case-insensitive. Defaults to true for LINQ to Objects, false for any other provider. If this flag is enabled, keys and data are loaded via separate queries. This may result in a more efficient SQL execution plan. Represents a grouping level to be applied to data. A value that groups data in ranges of a given length or date/time period. A flag indicating whether the group's data objects should be returned. Returns the value of the IsExpanded field or true if this value is null. The value of the IsExpanded field or true if this value is null. A parser for the data processing settings. Converts the string representations of the data processing settings to equivalent values of appropriate types. An object that will contain converted values. A function that accepts names of the data source options (such as "filter", "sort", etc.) and returns corresponding values. Allows reading object properties. The type of the object. Reads an object property. An object whose property should be read. The name or path to the property. The property's value. Represents a group in the resulting dataset. The group's key. Subgroups or data objects. The count of items in the group. Group summary calculation results. Represents a load result. A resulting dataset. The total number of data objects in the resulting dataset. The number of top-level groups in the resulting dataset. Total summary calculation results. Represents a sorting parameter. The data field to be used for sorting. A flag indicating whether data should be sorted in a descending order. Represents a group or total summary definition. The data field to be used for calculating the summary. An aggregate function: "sum", "min", "max", "avg", or "count".