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Get CheckBox Controls From GroupBoxes

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Question

Tuesday, August 20, 2013 11:08 PM

I have 8 Group Boxes that have checkbox controls on all of them.  I am looking for a way to traverse all of the group boxes, and get the status of the checkboxes in these group boxes.

I can find the checkboxes when I do one groupbox at a time shown below, but struggling with multiple group boxes.

          foreach(Control g in groupBox2)
          {

                if (g is CheckBox)
                {
                    
                    listBox1.Items.Add(g.Name.ToString());
                }
              
            }

All replies (3)

Thursday, August 22, 2013 6:16 AM ✅Answered

Hi Radgator,

  Welcome to MSDN Forum Support.

  You need to replace  groupBox2 into groupBox2.Controls,otherwise Visual Studio develop environment would rase the  Error 1 "foreach statement cannot operate on variables of type 'System.Windows.Forms.GroupBox' because 'System.Windows.Forms.GroupBox' does not contain a public definition for 'GetEnumerator' D:\ProgramInThread\GetCheckBoxControlsDemo\GetCheckBoxControlsDemo\GetCheckBoxControlsDemo\Form1.cs 22 13 GetCheckBoxControlsDemo".

  Here is its code snipppet as follows:

 

 foreach (Control g in groupBox2.Controls)            {                if (g is CheckBox)                {                    listBox1.Items.Add(g.Name.ToString());                }            }

  Its compressed solution I will upload it to Skydriver at https://skydrive.live.com/?cid=0b0be87e30d620ca#cid=0B0BE87E30D620CA&id=B0BE87E30D620CA%21105. The slution name is GetCheckBoxControlsDemo.zip.

  Sincerely,

  Jason Wang

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Thursday, August 22, 2013 10:32 AM ✅Answered

Here I write an extension method to handle adding all names of checkboxes in GroupBox into Listbox.

public static void AddCheckBoxNamesToListBox(this GroupBox groupBox, ListBox listBox)
{
    listBox.Items.AddRange( groupBox.Controls.OfType<CheckBox>().Select(s => s.Name));
}

Please let me know if any problem

Hope this will help you!!

Friday, August 23, 2013 4:33 AM ✅Answered

Loop through your Form.Controls collection and then through each GroupBox.Controls collection:

foreach (Control gb in this.Controls)
{
    if (gb is GroupBox)
    {
        foreach (Control cb in gb.Controls)
        {
            if (cb is CheckBox)
                listBox1.Items.Add(cb.Name);
        }
    }
}

~~Bonnie Berent DeWitt [C# MVP]

http://geek-goddess-bonnie.blogspot.com