.netvb.netwinformsradio-buttongroupbox

How to get a checked radio button in a groupbox?

I have a lot of radio buttons in a groupbox. Normally I will check each radio button individually using If radiobutton1.Checked = True Then.

But I think maybe there is smart way to check which radio button being checked in a groupbox. Any idea?

Solution

  • try this

    Dim rButton As RadioButton = 
        GroupBox1.Controls
       .OfType(Of RadioButton)
       .FirstOrDefault(Function(r) r.Checked = True)

    this will return the Checked RadioButton in a GroupBox

    Note that this is a LINQ query, and you must have

    Imports System.Linq

    If you do not, your IDE/Compiler may indicate that OfType is not a member of System.Windows.Forms.Control.ControlCollection