I use SetEntityFieldError in the OnValidateFieldValue() nicely.

When the user fixes the data, the OnValidateFieldValue doesn't fire.

What should I override to clear the IDataError...and how do I clear that so it bubbles up to the UI?

When the user fix the value, he back to the original value? Is your GUI ASP.Net or WinForms?

Also, post the code you have on the OnValidateFieldValue() method.

Hi,

It's WinForms.

When the user corrects the data, it does not clear.

This is a Hello-World kind of app. Simple POC.

        protected override bool OnValidateFieldValue(int fieldIndex, object value)
        {
            bool toReturn = true;
            switch ((CustomerFieldIndex)fieldIndex)
            {
                case CustomerFieldIndex.Country:
                    if (value.ToString() != "USA" && this.User != null && this.User.Country == "USA")
                    {
                        SetEntityFieldError(CustomerFields.Country.Name, "USA users can only set country to USA", true);
                        toReturn = false;
                    }
                    break;
                default:
                    toReturn = true;
                    break;
            }
            return toReturn;
        }

You have to clean it if the validation passes...:

        protected override bool OnValidateFieldValue(int fieldIndex, object value)
        {
            bool toReturn = true;
            switch ((CustomerFieldIndex)fieldIndex)
            {
                case CustomerFieldIndex.Country:
                    if (value.ToString() != "USA" && this.User != null && this.User.Country == "USA")
                    {
                        SetEntityFieldError(CustomerFields.Country.Name, "USA users can only set country to USA", true);
                        toReturn = false;
                    }
                    else
                    {
                          SetEntityFieldError(CustomerFields.Country.Name, string.Empty, false);
                    }
                    break;
                default:
                    toReturn = true;
                    break;
            }
            return toReturn;
        }