Type in textbox C#

Question

Hi!

I need help with a programming question. I am not sure how to put it into words but Ill try my best:

I want to have a textbox with a text written in it in advance. Let's imagine this is how it looks like:

Enter phone number: (NXX-XXXX)

The paranthesis is the text box in this case.

When the user will type in the number, I want the written text to stay in the empty spaces. Let's pretend Im putting a number in:

Enter phone number: (3XX-XXXX)

Enter phone number: (34X-XXXX)

etc

But I do not know how to make the N and X's disappear as we put a number in it's place and keep the other X's in place?

Thanks

Answer 1

I would suggest implementing the event handler ValueChanged();

so when the value in the text box is changed, the character is added to the

string buffer