MaterialTextField Choices with dynamic data

[rotsen24154]

I have two MaterialTextField, the first has a string's list attached on Choices property and the other one depends of that value to be filled with another string's list (At the beginning this list is empty). But if I choice the first option and try to select the second option throws this exception "The property Choices is null or empty", even though the ObservableCollection of the second MaterialTextField was filled after choice the first option.

With the previous nuget works fine.

[contrix09]

Hi. Can you provide a sample code of how to replicate this?

[rotsen24154]

There is a example project.
Link example project

[rotsen24154]

I could not create a pull request, but I solved doing this on MaterialTextField.xaml.cs

private void SetControl()
{
    trailingIcon.TintColor = this.TextColor;
    persistentUnderline.Color = this.UnderlineColor;
    tapGesture.Command = new Command(() =>
    {
        if (!entry.IsFocused)
        {
            entry.Focus();
        }
    });

    mainTapGesture.Command = new Command(async () =>
    {
        if (Choices == null || Choices?.Count <= 0)
        {
            throw new InvalidOperationException("The property `Choices` is null or empty");
        }
        _choices = GetChoices();

        var result = await MaterialDialog.Instance.SelectChoiceAsync("Select an item", _choices);

        if (result >= 0)
        {
            this.Text = _choices[result];
        }
    });
}

[contrix09]

Ok thanks. I'll apply this fix myself.