Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

Professional Opinions
Ask a Question
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

troubleshooting Question

Getting Error when Updating AccessDataSource via Gridview in asp.net

Avatar of trims30
trims30 asked on
3 Comments1 Solution459 ViewsLast Modified:
I am working in ASP.Net - Visual Studio 2008 - VB Code

Have a Gridview bound to an AccessDataSource and have configured it to allow Updating

It works correctly and updates columns as long as all grid columns (except Primary Key) are set to ReadOnly=False
Setting one or more columns to ReadOnly=True gives me the error:
You tried to assign the Null value to a variable that is not a Variant data type

My guess is that the ReadOnly fields are trying to put Null values into database fields on update.

How do I get around this problem??

Avatar of Todd Gerbert
Todd GerbertFlag of United States of America imageSenior Engineer
This problem has been solved!
Unlock 1 Answer and 3 Comments.
See Answers