DataSourceDefinition.Prompt Property
Gets or sets the prompt that the report server displays to the user when prompting for credentials.
Namespace: ReportService2005
Assembly: ReportService2005 (in ReportService2005.dll)
If the CredentialRetrieval property is not set to Prompt, this value is ignored.
If multiple data sources are associated with a report and the report's connection CredentialRetrieval setting is set to Prompt, the Report Server prompts for each data source.