Connect Timeout connection string property doesn't work with Oracle

Russ Suter
Russ Suter used Ask the Experts™
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I'm trying to set the connection timeout property for an OleDbConnection object. I read in docs that the property is read-only but can be set by adding a parameter to the connection string. My connection string looks like this:
Provider=MSDAORA;Data Source=[myTNSEntry];User ID=[myUser];Password=[myPassword];Connect Timeout=30;

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Inspecting the OleDbConnection object reveals that the connection timeout is, in fact 30 seconds which is good. Unfortunately, as soon as I try to open the connection I get an OleDbException error saying "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done." If I do not add the "Connect Timeout=30" argument in the connection string then the ConnectionTimeout property of the OleDbConnection object is the default 15 seconds but the Open() method works without errors. Am I missing something or am I just running into some kind of limitation with OleDb or with the Oracle provider?
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Most Valuable Expert 2012
Distinguished Expert 2018

Commented:
>>or with the Oracle provider?

You aren't using the Oracle Provider.  MSDAORA is the Microsoft OLE DB Provider for Oracle.

Use the native Oracle provider.
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
I agree. MSDAORA was a misguided attempt to fix something which is not broken, a long time ago. It causes more issues than it fixes, so skip it and use the Oracle .NET provider, which you need to have installed anyway.
Most Valuable Expert 2012
Distinguished Expert 2018

Commented:
If you can go with the .Net provider I would use the new Managed Driver.  No Client install necessary for it.

To clarify:  You don't have to install the .Net provider to install the OleDB driver.
Russ SuterSenior Software Developer

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Commented:
I'll look into that. Do you happen to know the name of the .NET provider I should be looking for?
Most Valuable Expert 2012
Distinguished Expert 2018
Commented:
Look for ODP.Net.

The ODP.Net drivers are here:
https://www.oracle.com/technetwork/topics/dotnet/index-085163.html

The Core driver is new to me so I've not used it.  It sounds really good with a single DLL.  I've used the Managed Driver and was VERY HAPPY with it.  It was the first s.Net driver that didn't need an Oracle Client install.  Sounds like the Core driver doesn't either.

I always downloaded the XCopy version and just copied the DLL I needed into my projects.

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