oprette en paintbox ved tryk på en anden knap

Har selv løst problemet 



        private PictureBox PictureBoxA;
        private void button4_Click(object sender, EventArgs e)
        {



            this.PictureBoxA = new System.Windows.Forms.PictureBox();
            this.PictureBoxA.BackColor = System.Drawing.SystemColors.ActiveCaption;
            this.PictureBoxA.Location = new System.Drawing.Point(300, 300);
            this.PictureBoxA.Name = "";
            this.PictureBoxA.Size = new System.Drawing.Size(50, 50);
            this.Controls.Add(PictureBoxA);


        }