private void button1_Click(object sender, EventArgs e)
{
this.panel1.Controls.Clear();//点击按钮,先清空panel里的内容
Form2 form = new Form2 { TopLevel = false, FormBorderStyle = FormBorderStyle.None };//要添加的Form不显示窗体头和边框
this.panel1.Controls.Add(form);//把form里的内容添到panel中
form.Show();//显示内容
}
{
this.panel1.Controls.Clear();//点击按钮,先清空panel里的内容
Form2 form = new Form2 { TopLevel = false, FormBorderStyle = FormBorderStyle.None };//要添加的Form不显示窗体头和边框
this.panel1.Controls.Add(form);//把form里的内容添到panel中
form.Show();//显示内容
}