Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

TMaskEdit with PASSWORDCHAR set to *

Posted on 1998-11-15
7
Medium Priority
?
1,068 Views
Last Modified: 2010-04-04
I am using a TMaskEdit with passwordchar set to * to hide the 5 digits entered by the user. The mask is set to 99999;0;

The problem is that the 5 * are displayed all the time, even when there is no characters in the maskedit. I would like the maskedit to be blank when no character have been entered.
0
Comment
Question by:moonrise
  • 3
  • 3
7 Comments
 
LVL 12

Accepted Solution

by:
rwilson032697 earned 320 total points
ID: 1346933
Use a TEdit instead of a TMaskEdit and write a handler for the OnKeyDown event. In this event discard the key if it is not a digit. If the entered number if 5 digits then discard all further keypresses.

eg:
  if Length(Text) = 5 then
   key := #0
 else
   if not (key in ['0'..'9']) then
     key := #0

Cheers,

Raymond.
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1346934
Hello moonrise ;-)

Raymond's code can be simply written as follows

if (Length(Text) = 5 and not (key in ['0'..'9'])) then key := #0

;-)

Cheers,
Viktor
0
 

Author Comment

by:moonrise
ID: 1346935
Thank you both.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 12

Expert Comment

by:rwilson032697
ID: 1346936
Of course after Viktor compiled it he would change it to:

if (Length(Text) = 5) and not (key in ['0'..'9']) then key := #0

:-)

Cheers,

Raymond.

Thought for the day: Complexity and complication are not the same.

0
 
LVL 10

Expert Comment

by:viktornet
ID: 1346937
Hello jelousy :)

I didn't compile anything... I just know Delphi well ;-)

I haven't opened Delphi for more than a month if you want to know...

btw- Did you compile it to see if it really works, eh?

Cheers,
Viktor
0
 
LVL 12

Expert Comment

by:rwilson032697
ID: 1346938
Of course I didn't compile it Viktor! That would be taking all the fun out of it!

Raymond.
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1346939
Good for you... I just wanted you to know that I didn't compile it also :)
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Video by: ITPro.TV
In this episode Don builds upon the troubleshooting techniques by demonstrating how to properly monitor a vSphere deployment to detect problems before they occur. He begins the show using tools found within the vSphere suite as ends the show demonst…
Look below the covers at a subform control , and the form that is inside it. Explore properties and see how easy it is to aggregate, get statistics, and synchronize results for your data. A Microsoft Access subform is used to show relevant calcul…
Suggested Courses

971 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question