When I enter a value in XamDataGrid Editor cell which has regular Expression validation,  some values are not validated properly.

eg: “tester” is invalidated by regex “test|tester”.

I am using this assembly of yours “Infragistics3.Wpf.Editors.v10.1, Version=10.1.20101.1000” . A class called 'value constraint' seems to have a bug as follows:

    if (flag && this.ShouldTestConstraint(ValueConstraintFlags.RegexPattern, constraintFlags))

    {

        if (this._regex == null)

        {

            try

            {

                this._regex = new Regex(this.RegexPattern);

            }

            catch

            {

                return true;

            }

        }

        Match match = this._regex.Match(input);

        if ((!match.Success || (match.Index != 0)) || (match.Length != input.Length))   // Leads to incorrect validation. Eg: “tester” is invalidated by regex “test|tester”.

        {                                                                                                                      

            flag = false;

            errorMsg = SR.GetString("LMSG_ValueConstraint_RegexPattern");

        }

    }

Is there a work around to modify this behavior ?

Please guide me with the same.