Devart Forums

I Get this error when I hit the Generate Commands button

ArgumentNullException: Value cannot be null. Parameter name: oldValue

What might I be doing wrong?

thanks

O and when i call update from the dataadapter i get the same error

I am also getting this error. Any help would be appreciated.

lz wrote:O and when i call update from the dataadapter i get the same error

Does this problem occur only in design-time? If so, please describe in details what you do and what is the behavior of the DataAdapter designer. Include MySQLDirect .NET version in your message.

I don't know about lz, but in my situation:

I have the MySQL server explorer open.
Step 1: I drag a table from the server explorer onto the form. This creates a MySQLConnection and MySQLDataAdapter component, and a "SELECT * FROM " query.

Step 2: Right click on MySQLDataAdapter component and select "Configure Data Adpater..."

Step 3: Go to Command Generator tab and click generate commands. An error will occur that states:

The following exception has occured:

ArgumentNullException: Value cannot be null.
Parameter name: oldValue

In my situation, this only occurs in design time. I am using:
Visual Studio .NET 2003 7.1.3088
.NET Framework 1.1.4322 sp1
CoreLab.MySql 2.80.7.0

Hope this helps.

Andy

One more thing... This behavior was not occuring with the trial version. It was after I installed the mysqlnet280pro.msi that this started occuring.

Thanks, Andy

We have fixed this problem for the MySQLDirect .NET.

Look forward for the next build.

it doesn't still seem to work. could you elaborate further on how to make it work

so what is the answer with the current version I just bought??

New build will be released on this week. We have fixed this bug in this version.