In SQL Server 2008 R2 Reporting Services, we are developing our own custom data processing extension, using IDbConnection and friends, and we plan to add our own custom query designer, using IQueryDesigner. That all works fine, so far.
However, we want to enable the use of the connection string "Edit..." button on the Data Source and Shared Data Source wizards.
This only seems to be enabled for the built in data providers. Do we need to implement another interface?
(This question was already asked two years ago, but not answered by someone from Microsoft, on a forum [1]. I found one older forum reply where someone from Microsoft says that "in Reporting Services 2000, the edit button is only enabled for our known internal data providers. [...] In Reporting Services 2005 we are considering adding the capability to allow the user to specify his own connection string builder dialog in which case the edit button would be enabled." Perhaps in SQL Server 2008 R2 this still is not available?)