By Peter

2009-12-10 11:51:40 8 Comments

Is it possible to capture print output from a T-SQL stored procedure in .NET?

I have a lot of legacy procs that use the print as means of errorMessaging. An example, is it possible to access the outprint 'word' from following PROC?

-- The PROC
CREATE PROC usp_PrintWord AS
    PRINT 'word'
// Some C# Code to would like to pull out 'word'
SqlCommand cmd = new SqlCommand("usp_printWord", TheConnection);
cmd.CommandType = CommandType.StoredProcedure;
// string ProcPrint = ???


@BraveNewMath 2013-05-13 23:05:04

This is really handy if you want to capture Print output in LinqPad's output console:

SqlConnection conn = new SqlConnection(ConnectionString);
//anonymous function to dump print statements to output console
conn.InfoMessage += (object obj, SqlInfoMessageEventArgs e)=>{

@AdaTheDev 2009-12-10 11:58:55

You can do this by adding an event handler to the InfoMessage event on the connection.

myConnection.InfoMessage += new SqlInfoMessageEventHandler(myConnection_InfoMessage);

void myConnection_InfoMessage(object sender, SqlInfoMessageEventArgs e)

@Nicholas 2014-01-25 09:40:06

If you also want the rows affected count then you need a handler for the StatementCompleted event on the SqlCommand.

@Mr. TA 2015-01-20 21:06:53

@Nicholas can you elaborate? I can't get that event to work properly. Please see…

@FrenkyB 2015-03-18 08:49:42

Are you catching all messages produced within sql server with that event ? Is it possible that this event will also catch some other messages, not produced by that stored procedure ?

@IronRod 2016-08-03 17:41:33

This may be obvious but if there is no output from the proc (no print, raiseerror, etc.) then the event is not triggered. This stumped me for a while until I realized what was happening.

@IronRod 2016-08-03 17:42:29

@FrenkyB I can confirm that it will capture all output (print, raiserror, etc.) from the invoked proc or any procs or functions which it calls.

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