（winform编程）form2中的点击事件实现form1中pictureBox之间的连线！~

Question

虽然你把form1上的pictureBox都设置为public,但你还要获得form1的对象才能进行设置

Answer 1

Form1打开Form2的代码：
        private void button1_Click(object sender, EventArgs e)
        {
            Form2 frm = new Form2();
            frm.Tag = this;
            frm.Show();
        }
Form2设置连线的代码，连线我是不会的了，给你设置背景的吧，自己连线
private void button1_Click(object sender, EventArgs e)
        {
            if (comboBox1.Text == "" || comboBox2.Text == "")
                return;            if (this.Tag != null)
            {
                Form1 frm = (Form1)this.Tag;
                PictureBox pic = null;
                for (int i = 0; i < comboBox1.Items.Count; i++)
                {
                    pic = (PictureBox)frm.Controls.Find(comboBox1.Items[i].ToString(), false)[0];
                    if (pic != null)
                    {
                        pic.BackColor = System.Drawing.Color.FromName("Control");
                    }
                }                PictureBox pic1 = (PictureBox)frm.Controls.Find(comboBox1.Text, false)[0];
                PictureBox pic2 = (PictureBox)frm.Controls.Find(comboBox2.Text, false)[0];                if (pic1 != null && pic2 != null)
                {
                    pic1.BackColor = System.Drawing.Color.Red;
                    pic2.BackColor = System.Drawing.Color.Red;
                }
            }
        }