System.Data.SqlClient Namespace

---

Provides a means of automatically generating single-table commands used to reconcile changes made to a DataSet with the associated SQL Server™ database.

SqlCommandBuilder Class Members

Show Inherited Members

Constructors Visibility Constructor Parameters public SqlCommandBuilder ( ) public SqlCommandBuilder ( SqlDataAdapter adapter )   Properties Visibility Name Value Type Accessibility public CatalogLocation CatalogLocation [ Get , Set ] public CatalogSeparator String [ Get , Set ] public DataAdapter SqlDataAdapter [ Get , Set ] public QuotePrefix String [ Get , Set ] public QuoteSuffix String [ Get , Set ] public SchemaSeparator String [ Get , Set ]   Methods Visibility Name Parameters Return Type protected ApplyParameterInfo ( DbParameter parameter , DataRow datarow , StatementType statementType , Boolean whereClause ) Void public static DeriveParameters ( SqlCommand command ) Void public GetDeleteCommand ( ) SqlCommand public GetDeleteCommand ( Boolean useColumnsForParameterNames ) SqlCommand public GetInsertCommand ( Boolean useColumnsForParameterNames ) SqlCommand public GetInsertCommand ( ) SqlCommand protected GetParameterName ( String parameterName ) String protected GetParameterName ( Int32 parameterOrdinal ) String protected GetParameterPlaceholder ( Int32 parameterOrdinal ) String protected GetSchemaTable ( DbCommand srcCommand ) DataTable public GetUpdateCommand ( Boolean useColumnsForParameterNames ) SqlCommand public GetUpdateCommand ( ) SqlCommand protected InitializeCommand ( DbCommand command ) DbCommand public QuoteIdentifier ( String unquotedIdentifier ) String protected SetRowUpdatingHandler ( DbDataAdapter adapter ) Void public UnquoteIdentifier ( String quotedIdentifier ) String

The SqlDataAdapter does not automatically generate the Transact-SQL statements required to reconcile changes made to a DataSet with the associated instance of SQL Server. However, you can create an SqlCommandBuilder object to automatically generate Transact-SQL statements for single-table updates if you set the SelectCommand property of the SqlDataAdapter. Then, any additional Transact-SQL statements that you do not set are generated by the SqlCommandBuilder.

The SqlCommandBuilder registers itself as a listener for RowUpdating events whenever you set the DataAdapter property. You can only associate one SqlDataAdapter or SqlCommandBuilder object with each other at one time.

To generate INSERT, UPDATE, or DELETE statements, the SqlCommandBuilder uses the SelectCommand property to retrieve a required set of metadata automatically. If you change the SelectCommand after the metadata has is retrieved ( for example, after the first update ), you should call the RefreshSchema method to update the metadata.

The SqlCommandBuilder also uses the Connection, CommandTimeout, and Transaction properties referenced by the SelectCommand. The user should call RefreshSchema if any of these properties are modified, or if the SelectCommand itself is replaced. Otherwise the InsertCommand, UpdateCommand, and DeleteCommand properties retain their previous values.

If you call Dispose, the SqlCommandBuilder is disassociated from the SqlDataAdapter, and the generated commands are no longer used.

The following examples demonstrate using the SqlCommandBuilder to dynamically generate the INSERT, UPDATE, and DELETE statements of a given SqlDataAdapter.

Adding a Row of Data to a DataSet Run Sample   View Source

Editing a Row of Data in a DataSet Run Sample   View Source

Removing a Row of Data in a DataSet Run Sample   View Source

SqlCommand   SqlDataAdapter   Updating Data at the DataSet Level

Books and more ...

Custom Search

Suggested Reading

Need a break ?