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Thread: Label with text and number

  1. #1
    Join Date
    Jun 2020
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    Default Label with text and number

    Hey,
    I have a Label and I want to put in a number and a text.
    Qt Code:
    1. int a;
    2. ui->label->setText(a "is the answer");
    To copy to clipboard, switch view to plain text mode 

    but this does not work, because qt can not see a there as a number. Maybe someone can help me?

    Also when I want the label to say a over b I would write "a/b" and use
    Qt Code:
    1. int a;
    2. int b;
    3. ui->label->setNum(a/b);
    To copy to clipboard, switch view to plain text mode 

    But obviously it calculates the result. I think it would also be possible if I could put Numbers in the setText function.

  2. #2
    Join Date
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    Default Re: Label with text and number

    Look at the QString::arg() methods for formatting strings with extra arguments.

    Qt Code:
    1. int a = 42;
    2. QString formattedString = QString( "%1 is the answer to life, the universe, and everything" ).arg( a );
    To copy to clipboard, switch view to plain text mode 

    Cracking open a C++ textbook would help you, too. You should realize that

    Qt Code:
    1. ui->label->setText( a "some string" );
    To copy to clipboard, switch view to plain text mode 

    isn't correct C++ syntax.
    Last edited by d_stranz; 30th June 2020 at 21:58.
    <=== The Great Pumpkin says ===>
    Please use CODE tags when posting source code so it is more readable. Click "Go Advanced" and then the "#" icon to insert the tags. Paste your code between them.

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