Добавление элементов в groupBox

for (int i = 1; i < 10; i++)
            {
                this.Controls.Add(new GroupBox() { Name = "groupbox" + i.ToString(), Location = new Point(50 , 50 *i), Size = new Size(200, 50), Text = i.ToString()});
            }

(Controls["groupbox" + i.ToString()] as GroupBox).Container.Add(new LinkLabel() { Name="linklabel",Text=i.ToString()});

(Controls["groupbox" + i.ToString()] as GroupBox).Controls.Add(new LinkLabel() { Name="linklabel",Text=i.ToString()});

(Controls["linklabel"+i.ToString()]as LinkLabel).LinkClicked+=new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);

var gp = (GroupBox)Controls["groupbox" + i];
var ll = new LinkLabel() { Name="linklabel",Text=i.ToString()};
ll.LinkClicked+=new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);
gp.Controls.Add(ll);

tabPage4.Controls.Add(new GroupBox { Name = "groupbox" + 1,Location=new Point(14,18),Size=new Size(200,100),Text=label7.Text });

tabPage4.Controls.Add(new GroupBox { Name = "groupbox" + 1,Location=new Point(14,18),Size=new Size(200,100),Text=label7.Text });
tabPage4.Controls["groupbox" + 1"].Controls.Add( .... );

var grpBox1 = new GroupBox { Name = "groupbox" + 1,Location=new Point(14,18),Size=new Size(200,100),Text=label7.Text };
grpBox1.Controls.Add( .... );
tabPage4.Controls.Add(grpBox1);