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  4. how to call or change the text of a lineEdit which locates in another cpp
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how to call or change the text of a lineEdit which locates in another cpp

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  • C Offline
    C Offline
    cinar
    wrote on last edited by
    #1

    Hi all,
    how can i reach the lineEdit which locates in another cpp?

    ui->roomnolineEdit->setText(qry.value(0).toString()); what i know all is not like this...

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Have a look at the signals and slots chapter of Qt's documentation. Basically, your widget handling the query should emit a signal containing that string value, and in your other widget, you implement a slot that will call ui->roomnolineEdit->setText(). Doing so also allows you to avoid tight coupling between your widgets.

      Hope it helps

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      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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