Maui picker for Android selecteditem issue

Question

Ver 17.9 preview 2 android Ver 34 Hello how

I can change the text of a selecteditem.

               <x: string> item 1<x: string>

               <x: string> item 2<x: string>

               <x: string> item 3<x: string>  

  I want programmatically change   'item 3' to something else. 

 Thank you. 

Answer 1

Hello,

You can do this by adding the picker's ItemSource to a System.Collections.ObjectModel.ObservableCollection

For example, you have a Picker like following code.

 <Picker x:Name="picker"
  Title="Select a monkey" >

Then, you can create a new ObservableCollection, add data in it and set the picker's ItemSource.

 ObservableCollection<string> values = new ObservableCollection<string>();
     public MainPage()
     {
         InitializeComponent();
         for (int i = 0;i<5;i++)
         {
             values.Add(i.ToString());   
         }
         picker.ItemsSource = values;
     }

I used a Button click event to make a test, if you want to change the third one's value in the Picker. You can set it directly. this value in the DataPicker will be changed.

private async void OnCounterClicked(object sender, EventArgs e)
{
     values[2] = "test";}
}

Best Regards,

Leon Lu

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