Form problems

This is a discussion on Form problems within the C# Programming forums, part of the General Programming Boards category; Hi: if I have one button on the form, and another form apprears after clicking the button, but if i ...

  1. #1
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    Form problems

    Hi:
    if I have one button on the form, and another form apprears after clicking the button, but if i keep clicking the button, the number of 2nd form would exist as many as I click.
    so is there any way or property to make me no matter how many times I click, there is only one 2nd form.

    thank you
    Don't laugh at me,I am just a SuperNewbie.

  2. #2
    the hat of redundancy hat nvoigt's Avatar
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    The form2 variable should be a variable of form1. Only create a new form, if it is null. Else make the form2 visible.
    hth
    -nv

    She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."

    When in doubt, read the FAQ.
    Then ask a smart question.

  3. #3
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    Sorry, I didn't understand what you mean, can you make a simple example.
    thank you
    Don't laugh at me,I am just a SuperNewbie.

  4. #4
    the hat of redundancy hat nvoigt's Avatar
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    class Form1
    {
    private Form2 f = null;
    ...

    in button click event:

    if( f == null )
    {
    f = new Form2();
    }

    Form2.Visible=true;






    Don't you think making Form2 modal would be better ? Do you actually need to keep both Windows open ?
    hth
    -nv

    She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."

    When in doubt, read the FAQ.
    Then ask a smart question.

  5. #5
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    Yes, I am using Modal, but if there are around 10 forms interacting each other, that would be a problem,
    Thank you for your code.
    Don't laugh at me,I am just a SuperNewbie.

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