Cursor control using Masked Text boxes in C#

Question

In my app in C# I have several input fields that I need to capture.

I need them to be of specific sizes and type and I have used masked Text Boxes for these.

I have fields like name which is 20 text charachters long, and a certificate number which is 5 numeric characters with a preceding C etc.

This works fine except with I click on a field with the mouse, the cursor does not go to the begining of the fild, or the end of any input text.

Is there a way of allowing this to happen using Masked Text Box or will I have to use normal Text Box and do all the field validation manually ?