Equate array of controls to existing control

Question

I tried something like:

RadioButton[] diff = new RadioButton[10];

for (int i = 0; i < 10; ++i)
{
    diff[i] = (RadioButton)Control("rad_D" + i.ToString());
}

Clearly does not work. But what was the correct way?

Not clear what you are trying to do. Are you trying to find all the RadioButtons with names of "rad_D*x*"? — Matt Burland, Mar 17 '12 at 16:43
@MattBurland: Something like that. I have several radiobuttons named "rad_D0", "rad_D1"... Then I wanted to add them to an array of radiobuttons. — Shibli, Mar 17 '12 at 16:57

Matt Burland · Accepted Answer · 2012-03-17T17:06:32.567

0

Edit: Ok, so you are looking for already existing RadioButtons, in that case, use FindName. Something like this:

RadioButton[] diff = new RadioButton[10];

for (int i = 0; i < 10; ++i)
{
    diff[i] = someparentControl.FindName("rad_D" + i.ToString()) as RadioButton;
}

You need a parent control, which can just be the window itself as it will search recursively for a matching name.

edited Mar 17 '12 at 17:06

answered Mar 17 '12 at 17:00

Matt Burland

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I dont want to create radiobuttons. They are created anyway. I just want to equate array of radiobuttons to already existing radiobuttons. – Shibli Mar 17 '12 at 17:05

score 0 · Answer 2 · edited May 23 '17 at 10:34

Try this, if the radio buttons are direct children of a Panel such as a Grid, StackPanel etc then you can do this:

var buttons = grid.Children.OfType<RadioButton>().
    Where(rb => rb.Name.StartsWith("rad_D").ToList();

to obtain a List, or if you really want an array

var buttons = grid.Children.OfType<RadioButton>().
    Where(rb => rb.Name.StartsWith("rad_D").ToArray();

And you can use this article Find all controls in WPF Window by type which has several methods for finding all controls of a specific type.

Equate array of controls to existing control

2 Answers2