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Thread: QDataWidgetMapper and QComboBox

  1. #1
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    Question QDataWidgetMapper and QComboBox

    I have the classical QSqlRelationalTableModel situation where the customerModel is the master and the countryModel is the detail. The problem is that I don't want to display this model in a table, but show one record at a time in individual widgets using the QDataWidgetMapper.

    How do I wire up the QComboBox that allows the user to pick the country?

    Possible options:

    1. Make the customerModel a QSqlTableModel, pass a 3rd param to the addMapper function
    2. Make the customerModel a QSqlRelationalTableModel, wire up the relationship, and Qt does the rest.
    3. something else

  2. #2
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    Default Re: QDataWidgetMapper and QComboBox

    Use QSqlRelationalDelegate on the widget mapper.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  3. #3
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    Question Re: QDataWidgetMapper and QComboBox

    Ok, let me see if I understand what you mean.

    1. the customerModel needs to be QSqlRelationalTableModel
    2. Wire up the relationship to the countryModel
    3. Create a QDataWidgetMapper
    4. Make the mappers delegate the QSqlRelationalDelegate
    5. Add a mapping for the QComboBox


    Correct?

  4. #4
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    Default Re: QDataWidgetMapper and QComboBox

    Yes, something like that.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  5. #5
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    Default Re: QDataWidgetMapper and QComboBox

    Tried that and it did not work

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