Xamarin iOS UiPickerView教程

@H_502_11@

var examplePVM = new ExamplePickerviewmodel(myListOfItems);
YourPickerView.Model = examplePVM ;

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public class ExamplePickerviewmodel : UIPickerviewmodel
{
    private List<String> _myItems;
    protected int SELEctedIndex = 0;

    public ExamplePickerviewmodel(List<String> items)
    {
        _myItems = items;
    }

    public String SELEctedItem
    {
        get { return _myItems[SELEctedIndex]; }
    }

    public override nint GetComponentcount (uIPickerView picker)
    {
        return 1;
    }

    public override nint GetRowsInComponent (UIPickerView picker,nint component)
    {
        return _myItems.Count;
    }

    public override String Gettitle (UIPickerView picker,nint row,nint component)
    {
        return _myItems[row];
    }

    public override void SELEcted (UIPickerView picker,nint component)
    {
        SELEctedIndex = (int)row; 
    }
}