Question

I’ve got this code to dynamically create checkboxes and hook them up to a shared OnTapped event handler:

private void CreateNewGroup(int currentItem, string groupName)
{
    CheckBox ckbx = new CheckBox();
    ckbx.Content = groupName;
    ckbx.Tag = currentItem; // Don't know if this is needed
    ckbx.Tapped += new TappedEventHandler(this.Checkbox_OnTapped);
    stackPanelCheckBoxesParent.Children.Add(ckbx);
}

…as the comment shows, I don’t know if assigning a val to the Tag property is superfluous. The only reason I added it is because here: Dynamically (programatically) adding check boxes and checkedchanged events, a couple of people say to be sure to assing to the ID property of the dynamically created checkbox. Yet in Windows 8 C# apps there is no such property, apparently.

Answer 1

Definition of Control.Tag:

A common use for the Tag property is to store data that is closely
associated with the control. For example, if you have a control that
displays information about a customer, you might store a DataSet that
contains the customer’s order history in that control’s Tag property
so the data can be accessed quickly.

So unless you need to associate an object with your control you can omit it, will you be later accessing the currentItem?