应用反射添加新控件的层叠显示

public SplitterPanel splitterPanel2;
public XmlNode xmlNode;
public string userId;
public void SetLabel(Label la)
{
la.Click += new EventHandler(Label_Click);
la.MouseHover += new EventHandler(Mouse_Hover);
la.MouseLeave += new EventHandler(Mouse_Leave);
}
public void Label_Click(object sender, EventArgs e)  //利用反射的方法实现不同按钮的事件响应
{
try
{
Assembly a;
a = Assembly.LoadFile(Application.StartupPath + "//" + xmlNode.Attributes["dll"].Value);
Type t = a.GetType(xmlNode.Attributes["class"].Value, false, true);
MethodInfo method = t.GetMethod(xmlNode.Attributes["method"].Value);
ConstructorInfo coninfo = t.GetConstructor(new Type[] { typeof(SplitterPanel), typeof(XmlNode), typeof(string) });
object[] arg = new object[3] { splitterPanel2, xmlNode, userId };
object obj = coninfo.Invoke(arg);
method.Invoke(obj, null);
}
catch (Exception ee)
{
MessageBox.Show(ee.ToString());
}
}

public SplitterPanel splitterPanel2;
public XmlNode xmlNode;
public string userId;
public BackForm(SplitterPanel splitterPanel2, XmlNode xmlNode, string userId)
{
this.splitterPanel2 = splitterPanel2;
this.xmlNode = xmlNode;
this.userId = userId;
}
public void Addform()
{
AddForm af = new AddForm();
af.TopLevel = false;
af.Top = 0;
af.Left = 0;
af.Anchor = AnchorStyles.Top;
af.Anchor = AnchorStyles.Left;
af.Show();
splitterPanel2.Controls.Add(af);
af.BringToFront();  //实现最上一层的显示
}

<panel title="panel1"  text="panel1" type="panel"  show="true" >
<lable  title="lable"  text="公司信息添加" type="lable"  dll="InfoAdd.dll" class="InfoAdd.BackForm" method="Addform"/>