Example with GroupBox&Panel:-

Add a new Form i.e.,FormGroupPanel to the Windows Application WABasics

Create two labels,one  textboxe and  Eight checkBoxes one Panel,one GroupBox

set the following properties to the checkboxes :-

Label1:      Text       : Enter AnyData      Name     : chkSampleData Label2:      Text       : ForeColor      Name     : lblForeColor groupBox1:      Text       : BackColor      Name     : groupBox1 Panel1:      Name       : panel1

checkBox1:      Text       : Red      Name     : chkRed checkBox2:      Text       : Green      Name     : chkGreen checkBox3:      Text       : Blue      Name     : chkBlue checkBox4:      Text       : White      Name     : chkWhite

checkBox5:      Text       : Cyan      Name     : chkCyan checkBox6:      Text       : Gold      Name     : chkGold checkBox7:      Text       : Yellow      Name     : chkYellow checkBox8:      Text       : Black      Name     : chkBlack

Design :-

Generate theEventHandlers for chkRed,chkGreen,chkBlue,chkWhite,chkCyan,chkGold,chkYellow,chkBlack CheckedChanged Events

& write the following code in Source[FormGroupPanel.cs] 

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WABasics {     public partial class FormGroupPanel : Form     {         public FormGroupPanel()         {             InitializeComponent();         }         private void optRed_CheckedChanged(object sender, EventArgs e)         {             txtSample.BackColor = Color.Red;         }         private void optGreen_CheckedChanged(object sender, EventArgs e)         {             txtSample.BackColor = Color.Green;         }         private void optBlue_CheckedChanged(object sender, EventArgs e)         {             txtSample.BackColor = Color.Blue;         }         private void optWhite_CheckedChanged(object sender, EventArgs e)         {             txtSample.BackColor = Color.White;         }         private void Cyan_CheckedChanged(object sender, EventArgs e)         {             txtSample.ForeColor = Color.Cyan;         }         private void optGold_CheckedChanged(object sender, EventArgs e)         {             txtSample.ForeColor = Color.Gold;         }         private void Yellow_CheckedChanged(object sender, EventArgs e)         {             txtSample.ForeColor = Color.Yellow;         }         private void optBlack_CheckedChanged(object sender, EventArgs e)         {             txtSample.ForeColor = Color.Black;         }     } }

Result :-