Null text and validating TextEdit

Hello Sorin,

Thank you for your question. I believe that the issue will be resolved if you set the UpdateSourceTrigger to LostFocus. This prevents TextEdit.EditValue from being posted to the Position field. Let me know if you need further assistance.

Thank you, Marina

Hi
Thank's for reply but it's not the best solution for me.
Indeed it's not raising any error but on LostFocus it raises.
And I need to see Validation in place.
I've even extended my Entity classes with IDataErrorInfo but with this kind of update it's not working.
With a new class implementing IDataErrorInfo it's working.
Any other ideas ?
I think it's something from Entity Framework

I found that if I hit continue after that error in debugger it's showing the error

It's all about Binding to an non nullable property from an entity based on an non nullable column from a table.

Hello Sorin,

Thank you for your feedback. Would you please provide a small sample for us? We will do our best to overcome this issue.

Thank you, Marina

It's a very big project with a SQL Server database.
Just try to bind an TextEdit to an EF4 Entity based on a SQL Table.
One field from table should not accept null.
That's all
Thank's

Thank you for your feedback. We are working on this issue. Please bear with us.

I found a solution
but it's not the best

Just put NullValue = ""

and in my partial class which implements IDataErrorInfo

if (string.IsNullOrEmpty(Position))

yield return new RuleViolation("Error", "Position");

It could be better that by design to throw first validation.

Thank's