[:: CheckBox as RadioButton? ::]

Question

Hello all,

Is it possible to use CheckBox as RadioButton ?

If so, please help.

Thanks,

Trusted

Answer 1

Yes, you can:

  public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
 
            radioButton1.Click+=new EventHandler(radioButton1_Click);
        }
 
        bool checkStatus = false;
 
        void radioButton1_Click(object sender, System.EventArgs e)
        {
           checkStatus = !checkStatus;
           radioButton1.Checked = checkStatus;
        }
 
    }

Hope it helps,

---

Adriano

Answer 2

Hi Adriano,

Thanks for your reply.

I want CheckBoxes to be act like RadioButtons or RadioButtons without using any groupbox.

Sorry, I did not follow what you wrote above, cause I am a novice [newbie] in VB 2010. Do you mean to create a new class and paste this code? Please explain.

Thanks again,

Trusted

 

Answer 3

Hi Trusted,

sorry I was wrong interpreting your request. In fact, I supposed you wanted to do the opposite (use a Radio like a Checkbox) ... because nrmally if you use a Radio button alone, you can't de-select it after selecting. You should do as above.

However since your request is make CheckBoxes act like Radio Buttons, basically there is no problem on doing that since it's simple to make like this:

1) Add your checkboxes to the form

2) Add a "Click" event handler on all the checkboxes, where you will be clearing the checkbox on the other ones and keep checked only the one you just checked... for instance

And you're done.

Obviously to make this you should write some lines of code.

Hope it helps,

---

Adriano

Answer 4

Adrino,

Take a look at this thread : Proposing an Answer

 

~Peace~

---

Thanks

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Living on Earth may be expensive, but did you know that it includes a free trip around the sun? Isn't that worth it?

Answer 5

Trusted , man, why do you do such a thing? CheckBoxes are used to make a multiple choice, and RadioButtons are used to make a single choice.

So, everybody knows it and is an common use.

 

If you however want to use images, you can use a toolbox (with buttons (checked - one image, unchecked- other image)

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Best regards, Sergiu

Answer 6

If you're a little creative you can make a selected thing. I know this isn't the most efficient method but it'll work.

 

void update_boxes(int a)

{

if (a==1) checkBox1.Checked = true; else checkBox1.Checked = false;

if (a==2) checkBox2.Checked = true; else checkBox2.Checked = false;

if (a==3) checkBox3.Checked = true; else checkBox3.Checked = false;

}

 

Then just add in the checkboxes' changed event:

if (checkBox1.Checked) update_boxes(1); else checkBox1.Checked = true; // Turn back on if it's unchecked again

 

Doesn't my awesome scripts look newbie?

Answer 7

Hi Sergiu,

 

I was using a GroupBox on a PictureBox holding a Bitmap. When I use RadioButtons on GroupBox, some text from Bitmap [which is in picturebox] is not visible. And there is no way I found to make GroupBox backcolor transparent.

 

So, I decided to use checkboxes as radiobuttons, IF POSSIBLE.

Trusted.

Answer 8

Hi Yoshi,

You look smart, but is this the VB code?

I tried to copy and paste, and I got error on each and every word. ???

If it can be used in VB 2010, please help.

Thanks,

Trusted

Answer 9

1) Add your checkboxes to the form

2) Add a "Click" event handler on all the checkboxes, where you will be clearing the checkbox on the other ones and keep checked only the one you just checked... for instance

And you're done.

Hi Adriano,

Thanks a bunch of millions.

It worked. May Allah give you the best reward.

The simple code I wrote is follows: [I am writing this so that it can be helpful for others].

----------------------------

 

Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged

        If CheckBox1.Checked = True Then

            CheckBox2.Checked = False

        End If

    End Sub

 

 

Private Sub CheckBox2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox2.CheckedChanged

        If CheckBox2.Checked = True Then

            CheckBox1.Checked = False

        End If

    End Sub

 

-------------------------------

This way to tooooo easy for a newbie like me.

I was stuck on this since three days now.

Thanks again,

Trusted

Answer 10

Trusted, you can make your GroupBox transparent. See my answer on the corresponding thread.

---

Best regards, Sergiu

Answer 11

Hello Sergiu,

I could not able to make GroupBox transparent ON PictureBox.

PictureBox size is big, let say about 600x400 pixels carrying an image .gif bitmap. That bitmap has questions, like a exam question paper with "Correct" or "Wrong" check options.

So, when I try to use GroupBox on each question, some text from bitmap is hiding behind the GroupBox, and I could not able to make it transparent ON PictureBox specailly in VB 2010.

GroupBox is working fine with transparency without PictureBox.

I hope you understand,

Trusted

Answer 12

Oh, I'm sorry, my code is written in C#.

 

Below you can find the VB translated version.

 

Private Sub UpdateBoxes(ByVal a As Integer)
 If (a==1) Then checkBox1.Checked = True Else checkBox1.Checked = False End If If (a==2) Then checkBox2.Checked = True Else checkBox2.Checked = False End If
 If (a==3) Then checkBox3.Checked = True Else checkBox3.Checked = False End If
 End Sub

 

Then just add in the checkboxes' changed event:

 

If (checkBox1.Checked) Then update_boxes(1) Else checkBox1.Checked = True End If ' Turn back on if it's unchecked again

 

Answer 13

Hey Yoshi ???

You have copied back the same code :)

 

Trusted

Answer 14

That's false, this one has got if's like VB has :].

Answer 15

sorry, but not working... with VB 2010

 

Same full of blue lines under each word :)

Answer 16

Oh, I'm sorry, my code is written in C#.

 

Below you can find the VB translated version.

 

void update_boxes(int a)



{



If (a==1) Then checkBox1.Checked = True Else checkBox1.Checked = False End If



If (a==2) Then checkBox2.Checked = True Else checkBox2.Checked = False End If


If (a==3) Then checkBox3.Checked = True Else checkBox3.Checked = False End If


}

 

Then just add in the checkboxes' changed event:

 

If (checkBox1.Checked) Then update_boxes(1) Else checkBox1.Checked = True End If ' Turn back on if it's unchecked again

 

Actually, that is an unholy mix of VB and C#!

Try this:

Private Sub UpdateBoxes(ByVal a As Integer)
  If a = 1 Then
    CheckBox1.Checked = True
  Else
    CheckBox1.Checked = False
  End If

  If a = 2 Then
    CheckBox2.Checked = True
  Else
    CheckBox2.Checked = False
  End If

  If a = 3 Then
    CheckBox3.Checked = True
  Else
    CheckBox3.Checked = False
  End If
End Sub

Answer 17

Yea, I'm not using VB often (Or not at all the last few years). I dislike all those words.

I updated my code in order to not confuse other people.

@ Trusted, Next time specify with language you're writing your scripts in. I use C# most of the time so I just give answers in that language, it's a forum for all languages here.

Answer 18

Thank you Shawn,

I have done it in other way, posted above.

Trusted

Answer 19

OK Yoshi,

It is my mistake that I did not mention initially, then it is your mistake that you have not seen when I added what language I am using :D

Thanks anyway for your unuseful help. :D

Trusted

Answer 20

Hello, here a simple answer to transform the CheckBox to a RadioButton:

object clickBox = null;

 private void checkBox_Click(object sender, EventArgs e)
    {
        clickBox = sender;

        foreach (Control c in this.Controls)
        {
            if (c is CheckBox)
            {
                if (c != clickBox)
                {
                    ((CheckBox)c).Checked = false;
                }
            }
        }

And add this Click event o every Checkbox Finish

Answer 21

Hello,

Even thou you seem to have a solution I would highly suggest not changing the behavior of standard controls to act like another control as generally speaking this leads to confusion to the customer of the application. One of the base concepts of Windows is commonality in regards to a specific control acts the same way in all applications i.e. a button. If we look at a button for instance you click on the button to trigger something or single click (when there is one) the down arrow on the right side of a button for additional options. The same holds true when talking about RadioButton and CheckBox controls. Of course if business asked for this and you warned them why it's a bad idea and they still want it no matter what then you have no choice but do not simply do this.

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