Run a Sample Query
One of the final checks you can perform on a created connection string is a simple query that fetches a list of available files and data sources in the target database. Once you create the connection string, you can run this query using DataAccessControl.Microsoft.HostIntegration.DataAccessLibrary.DataAccessControl.SampleQuery%2A?displayProperty=fullName
.
Run a sample query
Create or retrieve the connection string on which you run the sample query.
For more information on creating and retrieving connection strings, see Creating a Connection String and How to Retrieve Data.
Run the sample query with a call to
Microsoft.HostIntegration.DataAccessLibrary.DataAccessControl.SampleQuery%2A
.If successful,
Microsoft.HostIntegration.DataAccessLibrary.DataAccessControl.SampleQuery%2A
returns a data table with the relevant values. Otherwise, the method returns null.