Strrange behavior using masked edit

I have simple Windows form (not WEB app), a test app for this problem. It has a masked Edit and a button. mask is "00000000" (8 zeroes) and prompt char is a space, because I don't want a prompt char. In button click event, I set the focus to the text box because in my real app depending on what the user enters, I do not close my dialog and instead force them to reenter data. I can click the button all day and all is fine - textbox get focus. However, if I use the mouse to click in the text box, I get 8 space (size of the mask) inserted into the text box. Why? I don't get it?? See image. I can tell this happens by seeing the blinking cursor.

Visual Basic.NET.NET Programming

Last Comment

HLRosenberger

8/22/2022 - Mon

HLRosenberger

7/21/2016

ASKER

oh, I get this behavior even without the button click. Just clicking into the textbox, and I get the 8 spaces.

HLRosenberger

7/21/2016

ASKER

If I do this in the click event for the textbox, the cursor to the beginning of the text box, and now I can type into it. Otherwise, with those spaces, I can't type.

MaskedTextBox1.Text = ""

Éric Moreau

7/21/2016

the masked control is terribly bad.

You might consider:
-use the NumericUpDown instead: https://msdn.microsoft.com/en-us/library/system.windows.forms.numericupdown(v=vs.110).aspx
-creating your own control: http://emoreau.com/Entries/Articles/2003/03/Creating-your-own-Windows-Custom-Control.aspx

This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.

rwheeler23

AndyAinscow

7/21/2016

>>mask is "00000000" (8 zeroes) and prompt char is a space

Why are you surprised that it works as you instructed it to work ??

HLRosenberger

7/21/2016

ASKER

Not surprised, really I guess. I guess there's not way to truly have no prompt character.