如何区分代码中的 2 个或多个输入字段

Question

Raw newbie to Xamarin here. VS 2019, C#, latest Xamarin. Looked everywhere but must be searching with non-relevant search terms.

So if I have 2 or more entry fields on a Xamarin form how do I know which one caused an event like onCompleted to fire. I do not see a Name or Id property for an entry field.

Answer 1

Entry (and Element in general!) have an Id property that can be retrieved when you need it, to uniquely identify them.

If you have an Entry myEntry , then you can identify it on your event handler as:

Entry myEntry = new Entry()
{
    Id = Guid.NewGuid()
};

...

void Entry_Completed (object sender, EventArgs e)
{
    var entryID = ((Entry)sender).Id; //cast sender to access the properties of the Entry
    if (entryID.ToString() == myEntry.Id.ToString())
    {
        // Do something...
    }
}

I hope that helps!

Note: Not proved code!