[Solved] Dynamically assign namefilter to FileDialog?

[QphiuchuS]

Hello!

I am trying to dynamically assign a namefilter to a FileDialog, but this does not seem to work at all.

import QtQuick 2.2
import QtQuick.Dialogs 1.1
 
FileDialog {
 
title: qsTr("Export to File")
selectExisting: false
 
onVisibleChanged: {
    if(visible)
        nameFilters = ["Image files (*.jpg *.png)", "All files (*)"]
    }
}

import QtQuick 2.2
import QtQuick.Dialogs 1.1

FileDialog {

title: qsTr("Export to File")
selectExisting: false

onVisibleChanged: {
    if(visible)
        nameFilters = ["Image files (*.jpg *.png)", "All files (*)"]
    }
}

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Obviously this is just a test case, in real life I need to determine the available plugins of my application at runtime and assign the nameFilters accordingly. If I add

console.log(nameFilters)

console.log(nameFilters)

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after I set them, they show up just fine. So why does this fail I wonder?

Best Regards

[anda_skoa]

So you are saying that the change of nameFilters does not affect the already visible dialog?

Maybe make the test more realistic by doing something you would do in the actual case?

E.g. create a property somewhere that holds the list and then make a binding for nameFilters to that property.
This property is then a placeholder for the property your C++ code will be exporting.

Cheers,
_

[QphiuchuS]

Thank you for your answer! I already tried to use a property:

import QtQuick 2.2
import QtQuick.Dialogs 1.1

FileDialog {

title: qsTr("Export to File")

property var nameFilterList: []

selectExisting: false
nameFilters: nameFilterList

onVisibleChanged: {
if(visible)
nameFilterList = ["Image files (*.jpg *.png)", "All files (*)"]
}
}

It had the same effect (that is none). At first I used the realistic approach, that is, get a QStringList from my C++ model and assign it. When this failed I further simplified my approach and found that I could not assign anything dynamically.


BUT: you just gave the correct hint! I should have assigned the namefilter *before* I show the whole friggin dialog! Thank you a lot!

Before:

exportDialog.open()

exportDialog.open()

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After:

exportDialog.nameFilters = ["All Files (*.*)"]
exportDialog.open()

exportDialog.nameFilters = ["All Files (*.*)"]
exportDialog.open()

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Thanks again.