Hi Boyan Boev,
I have find the solution to calculate the length for rad masked textbox using object.
string homephonetext= homephone.ToString().Remove(3,1);
int home_length= sphome.Length;
Using above code, i have get the expected value but i am not satisfied with this solution as unnecessarly it increases the LOC.
As you said, i have use the same code which you have replies me but still getting the, "Object reference not set to an instance of an object." exception using following code line.
RadInput textbox = Manager.Current.ActiveBrowser.Find.ById<RadInput>("rmtbHomePhoneNumber");
By the thanx for your valuable guidance.