初接触Windows Form，不用MDI，能否实现Web Form中IFRAME的功能
如题：

MainForm中的容器控件能否根据需要加载一个子窗体。


[最优解释]
设置toplevel = false就可以了
SubForm sb = new Subform();
sb.toplevel = false;
sb.dockstyle = dockstyle.fill;
panel1.Controls.add(sb);
sb.show();
[其他解释]

            Form2 f2 = new Form2();
            f2.TopLevel = false;
            f2.FormBorderStyle = FormBorderStyle.None;
            this.panel1.Controls.Add(f2);
            f2.Show();

用Panel天价就可以了。
[其他解释]

引用:

C# code?12345 Form2 f2 = new Form2(); f2.TopLevel = false; f2.FormBorderStyle = FormBorderStyle.None; this.panel1.Controls.Add(f2); ……

就是这个思路


private void FrmTableLayout_Load(object sender, EventArgs e)
{
var frmTimeM1A = new FrmTime("M1A");
frmTimeM1A.TopLevel = false;
frmTimeM1A.FormBorderStyle = FormBorderStyle.None;
frmTimeM1A.StartPosition = FormStartPosition.CenterParent;
frmTimeM1A.Dock = DockStyle.Fill;
this.pnlM1A.Controls.Add(frmTimeM1A);
frmTimeM1A.Show();

var frmTimeM1B = new FrmTime("M1B");
frmTimeM1B.TopLevel = false;
frmTimeM1B.FormBorderStyle = FormBorderStyle.None;
frmTimeM1B.StartPosition = FormStartPosition.CenterParent;
frmTimeM1B.Dock = DockStyle.Fill;
this.pnlM1B.Controls.Add(frmTimeM1B);
frmTimeM1B.Show();
}

效果如图