Introduction to ADO Data mapping related usage instructions

Source: Internet
Author: User

ADO Data and DataSet: Describes how a dataset interacts with XML as a data source (including loading and maintaining the contents of the dataset as XML data, you can simply right-click on References node and run local ADO on your own program) Like.

DiffGram: Provides detailed information about DiffGram, DiffGram is an XML format for reading and writing DataSet content. loading datasets from ADO data: Discusses the different options to consider when loading dataset content from an XML document.

write datasets as ADO data: Discusses how to generate the contents of a dataset as XML data and the different XML formatting options you can use. Loading dataset schema information from XML: Discusses the DataSet method used to load a dataset schema from XML.

Writes DataSet schema information in ADO data (XSD): Discusses the purpose of an XML schema and how to generate an XML schema from a DataSet. Synchronize the DataSet with XmlDataDocument: Discusses the features available in the. NET framework for synchronizing access to a single dataset's relationships and hierarchical views, and explains how to create a synchronization relationship between a dataset and a XmlDataDocument.

Nested DataRelation: Discusses the importance of nested DataRelation objects in representing dataset content as ADO data, and describes how to create these objects. Generates a dataset relational structure from an XML Schema (XSD): A relational structure (that is, a schema) that describes a dataset created from an XML Schema definition language (XSD) schema.

Mapping ADO Data (XSD) Constraints to DataSet constraints: Describes the XML schema elements that are used to create unique and foreign key constraints in the DataSet. To generate a DataSet relationship from an XML Schema (XSD): Describes the XML schema elements that are used to create relationships between the table columns in the DataSet.

Understand the interrelationship between constraints and relationships: Describes how to implicitly create a relationship when using XML schema elements to create constraints in the DataSet. Infer a DataSet relational structure from XML: Describes the resulting relational structure (that is, the schema) of the dataset created when you infer from an XML element. Create and work with data tables: Describes how to create and customize a DataTable object.

Create data table: Explains how to create ADO data and add it to a dataset. Defines the schema of a datasheet: Provides information about creating and using DataColumn objects and constraints. Manipulating data in a datasheet: Explains how to add, modify, and delete data in a table. Explains how to use a DataTable event to examine changes to data in a table.

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