public TestForm()
        {        
            InitializeComponent(); 
          
             GridViewCheckBoxColumn checkBoxColumn = new GridViewCheckBoxColumn("checkbox");
            checkBoxColumn.EnableHeaderCheckBox = true;
            this.radGridView1.Columns.Add(checkBoxColumn);
            this.radGridView1.Columns.Add("text");
            this.Shown += TestForm_Shown;
        }

        private void TestForm_Shown(object sender, EventArgs e)
        {
            this.radGridView1.Columns["checkbox"].IsVisible = !this.radGridView1.Columns["checkbox"].IsVisible;
        }

        private void radButton1_Click(object sender, EventArgs e)
        {
           
            this.radGridView1.ReadOnly = !this.radGridView1.ReadOnly;
        }