Updates the values of records in the current recordset, after the current record, that satisfy the specified filter expression.

[Visual Basic]Overloads Public Function UpdateRecords( _
   ByVal records As IDictionary, _
   ByVal filterExpression As String _
) As Integer

Parameters

records

Specifes one or more name-value pairs for the record elements to be updated.

filterExpression

Specifies an expression that qualifies the records to be updated. See the Remarks section for details.

Return Value

This method returns the number of records updated.

Remarks

Using Filter Expressions

Some of the methods in the .NET connector allow you to use filter expressions when fetching records from a recordset. The syntax you can use to build filter expressions is:

condition_statement=condition_expression

You can use expressions on both the left and right sides of the condition statement. Be sure to enclose data in quotation marks.

Condition Expressions

Value Expressions

A value expression can take any of the following:

• Variable (variables.variablename)
• Attribute (attribute name)
• Field (recordset.recordsetfield)
• String
• Integer
• Floating point number

Filter Expression Examples

This example returns all records in the patients recordset that are not "Smith":

patients.lastname  <> "Smith" 

This example returns the exact same set of records as the preceding example:

NOT (patients.lastname = "Smith")

This example returns all records in the SearchResults recordset with the last name "Smith" and first name "Steven":

(SearchResults.LastName = "Smith") and (SearchResults.FirstName =* "Steven")

This example returns all fields in the AccountNumbers recordset greater than or equal to 10000 and less than or equal to 20000:

(AccountNumbers.Accounts >= 10000) and (AccountNumbers.Accounts <= 20000)

See Also

HostIntegratorSession Class | HostIntegratorSession Members | WRQ.Verastream.HostIntegrator Namespace | HostIntegratorSession.UpdateRecords Overload List