Problem with displaying substraction

[Damian7546]

Hi,

I have textField with id: rest.

In other TextField I calcualte value in rest like below :

TextField{
id: paid
onCursorPossitionChanged: {
rest.text = paid.text - toPay.text
}
}

Usually displaying above substraction works good. But when I have paid = 5 and toPay=4 I have a problem because the rest textField dispaying 0 .... ? Any idea why?

[Damian7546]

I changed signal from onCursorPositionChanged to onTextValueChanged and works

[JonB]

@Damian7546
I don't use QML, but does it matter that you have misspelled onCursorPossitionChanged here? Should be onCursorPositionChanged?

[Damian7546]

@JonB you are right, typo when rewriting on the forum, but it is not a problem....

[JonB]

@Damian7546
Show exactly what is in paid.text and toPay.text. I think you are in JavaScript and something like console.log(paid.text) should work? And I think you can also call parseInt(paid.text) to see what number JS parses it as.

[Damian7546]

@JonB Below part code:

TextField {
            id: paid
            width: 200
            height: 50
            onCursorPositionChanged: {
                rest.text = paid.text - toPay.text                                 
            }
            font.pixelSize: paid.height * .7
            Keys.onEnterPressed: {
                accountButton.focus = true
            }
            validator: IntValidator {
                bottom: 0
                top: 500
            }
        }

TextField {
            id: rest
            width: 200
            height: 50
            enabled: false
            font.pixelSize: rest.height * .7
            font.bold: true
            color: "black"
            background: Rectangle {
            color: rest.text !== "0" ? "orange" : "lightgray"
            border.color: "gray"
            }
        }


TextField {
            id: toPay
            width: 200
            height: 75
            font.pixelSize: toPay.height * .5
            text: _toPay
            color: "black"
            background: Rectangle {
                color: "lightgreen"
            }

        }


//////Delay after popup onOpened
   Timer {
        id: timer
        interval: 200
        onTriggered: {
            paid.text = _toPay
            paid.select(0,paid.length)
            rest.text = "0"                       
        }
    }

The problem is only when open popup. When I clear rest TextField and write again everything is ok.

[Damian7546]

I changed signal from onCursorPositionChanged to onTextValueChanged and works