ComboBox with dynamic model

[nununoisy]

I have a ComboBox widget in my application that is intended to allow the user to pick from sections in a file they choose. Setting the model of the ComboBox to an in [string] property works in that the choices provided update when the user picks a different file. However, if the user selects any option before the model update, the previous choice's text is not cleared from the box. This occurs on SlintPad and Windows using Slint on Rust with the Qt and winit-femtovg backends. MRE on SlintPad

I've tried the following to no avail:

• Binding current-index to an in-out bool property and setting it to -1 before and after updating the model
• Binding current-value to an in-out string property and setting it to a placeholder value before and after updating the model
• Updating the model to an empty array first before updating it to the next model
  • I have also tried this with a conditional that only renders the ComboBox if the model is not empty
• Calling request_redraw() after updating the model

If anyone has any ideas for this they would be much appreciated.

[ogoffart]

You may need to create a callback that sets the text value manually when you change the model.

So something like this: https://slint-ui.com/releases/1.0.2/editor/?snippet=import+%7B+ComboBox%2C+CheckBox+%7D+from+%22std-widgets.slint%22%3B%0Aexport+component+Example+inherits+Window+%7B%0A++++width%3A+200px%3B%0A++++height%3A+130px%3B%0A++++cb+%3A%3D+ComboBox+%7B%0A++++++++y%3A+0px%3B%0A++++++++width%3A+self.preferred-width%3B%0A++++++++height%3A+self.preferred-height%3B%0A++++++++model%3A+check.checked+%3F+%5B%22other%22%2C+%22other+2%22%5D+%3A+%5B%22first%22%2C+%22second%22%2C+%22third%22%5D%3B%0A++++%7D%0A++++check+%3A%3D+CheckBox+%7B%0A++++++++text%3A+%22Use+second+set%22%3B%0A++++++++toggled+%3D%3E+%7B+cb.current-value+%3D+%22+%22%3B+%7D%0A++++%7D%0A%7D%0A

[nununoisy]

Sorry for getting back to this so late. Using a binding to current-value did work, it's just that I forgot to use <=> when linking the property. 'Twas my own inexperience that got me.