C# how to clear radiobutton when changing tab in tabcontrol

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Hi I have a winforms app in c# witch has a tabControl with 3 pages each page has 4 radioButtons. The problem is when I change to a different tab page and click a RadioButton, it becomes checked but the RadioButton on the previous page remains checked as well.

Is there any way of grouping all the RadioButtons on all the pages together, so that only one RadioButton is checked at any one time?

I tried the code below but get an error selectin the radiobutton.
<pre lang="c#">You can not bind the object of type 'System.Windows.Forms.Label' to type 'System.Windows.Forms.RadioButton'.</pre>

What I have tried:

C#

private void UncheckLayouts(TabPage activePage)
       {
           foreach (Control control in tabControl1.Controls)
           {
               if (control is RadioButton)
               {
                   RadioButton rb = control as RadioButton;
                   rb.Checked = false;
               }
           }
       }
       private void radioButton1_Click(object sender, EventArgs e)
       {
           UncheckLayouts(tabControl1.SelectedTab);
       }

       private void radioButton2_Click(object sender, EventArgs e)
       {
           UncheckLayouts(tabControl1.SelectedTab);
       }

I get no errors but can switch tabs and the radiobuttons stay selected

Posted 12-Dec-16 4:05am

Marc-IT

Updated 30-Apr-19 23:34pm

v5

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Comments

Philippe Mori 12-Dec-16 16:30pm

This is a bad UI design. You should always see all related radio buttons at once.

And there is nothing difficult to uncheck a radio button as you just have to set its Checked property to false.

4 solutions

Solution 3

In order to uncheck the radio buttons when switching tabs you will need to run the foreach loop code in the TabControl's Deselecting event.

The below effectively Unchecks all radio buttons on the tab page that you clicked out of.

C#

private void tabControl1_Deselecting(object sender, TabControlCancelEventArgs e) {
    foreach (var ctrl in e.TabPage.Controls) {
         if (ctrl is RadioButton) {
             RadioButton tb = ctrl as RadioButton;
             rb.Checked = false;
         }
    }
}

Posted 12-Dec-16 6:42am

Ramza360

Updated 12-Dec-16 6:45am

v2

Comments

Marc-IT 13-Dec-16 3:23am

Thanks for the help,
However there must be another problem with my app.
It still does nothing, the radiobutton stays selected even when i change tabpage :\
What i did is simply put 4 radiobuttons on each of the 3 pages with the designer.
am i missing something?

Ramza360 13-Dec-16 9:58am

Hi Marc you need to subscribe to the Deselecting Event on the TabControl.
Right click the TabControl and select Properties. In the Property Grid click the thunderbolt icon which will show you the events. Locate the Deselecting Event and type in the name of the method you would like. Copy/Paste the code into that method (only copy the foreach loop into the new method)

Solution 1

I would probably add a "Clicked" event to all of the radio buttons, and set the handler to use the same method. At that point, you can marshal what happens based on what button was clicked. If you want all of the radio buttons in a given group to be unchecked, you may need to set their TabStop property to false.

Posted 12-Dec-16 4:15am

#realJSOP

Updated 12-Dec-16 4:55am

v2

Comments

Marc-IT 12-Dec-16 11:23am

Hi,
Thanks for the help,
Can you please take a look at my post, i updated the code but still not working.

Solution 4

private void tabList_Deselecting(object sender, KryptonPageCancelEventArgs e)
{
foreach (var ctrl in e.Item.Controls)
{
if (ctrl is ComponentFactory.Krypton.Toolkit.KryptonRadioButton)
{
ComponentFactory.Krypton.Toolkit.KryptonRadioButton rb = ctrl as ComponentFactory.Krypton.Toolkit.KryptonRadioButton;
rb.Checked = false;
}
}
}

Posted 30-Apr-19 23:35pm

saumyabrata

Comments

Richard MacCutchan 1-May-19 5:49am

Reason for my vote of 1: this is nothing to do with the question.

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Ehsan Sajjad · Accepted Answer · 2016-12-12T04:16:00

Solution 2

Every control inside the tab page will not be radiobutton type, you need to check first if it is radio button then cast it and change it's state :

C#

foreach (Control control in tabPage.Controls)
{
   if(control is RadioButton)
   {
       RadioButton rb =  control as RadioButton;  
       rb.Checked = false;
   }
}

another solution is to filter out the RadioButton type instances from the Controls collection like:

C#

foreach (RadioButton rb in tabPage.Controls.OfType<RadioButton>())
{  
   rb.Checked = false;
}

Posted 12-Dec-16 4:16am

Ehsan Sajjad

Updated 12-Dec-16 4:17am

v2

Comments

Marc-IT 12-Dec-16 10:22am

Hi,
Thanks for the tips.
I get no errors now but the radiobutton stays selected while moving to another tab :\

Ehsan Sajjad 12-Dec-16 10:25am

do you have controls directly in the tabpage or you have put a user control inside the tabpage, if yes then you would need to iterate the controls inside the user control

Marc-IT 12-Dec-16 10:33am

Sorry, i´m new at this.
What i did is add the tab control in a form and deveral radio buttons in the each page of the tabControl.
Can you help please?