CODEWITHSUNDEEP
xamarin.forms
Lars
Lars

Reputation: 281

Trigger Xamarin.Forms Picker

Can i Trigger a Picker programatically?

I would like a button beside the picker that indicates that the picker is a clickable "dropdown". But how could I open the picker when the button is clicked?

Upvotes: 21

Views: 11145

Answers (3)

Hutjepower
Hutjepower

Reputation: 1261

You can name the picker (e.g. myPicker) and call its Focus event. Do make sure that you're on the main thread at the time you're calling myPicker.Focus()

Upvotes: 19

deadlydog
deadlydog

Reputation: 24384

As @Hutjepower and this xamarin forums post mentions, the following code should work:

Device.BeginInvokeOnMainThread(() =>
{
    if (yourPicker.IsFocused)
        yourPicker.Unfocus();

    yourPicker.Focus();
});

However I have found that it does not currently work on Windows 8.1 and UWP apps, at least in the latest 2.3.4-pre1 version of Xamarin.Forms. I haven't tested it on any phone/tablet devices yet though. Hopefully this bug will get fixed up in a later release. I have created a bug report for this problem.

Upvotes: 12

Andy Hopper
Andy Hopper

Reputation: 3678

Unfortunately not; the inner workings of the picker are almost entirely in the renderers and are not exposed via an API.

Upvotes: 1

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