Duplicate Group Box

How can I开发者_运维问答 Duplicate a Groupbox in C# window application , the group box contain 30 textbox and i need to duplicate it on a special event and I don't know the maximum number of needed groupbox

If you are using winforms, possible solutions:

1. Put a groupbox on form, customize it, copy the generated code (from ..designer.cs file) and put it to a method. When you event occurs you just call the method that will create new control.

2. Using reflection create a new object of the same type and any writable property will get their values copied, use this method:

   private object CloneObject(object o)
   {
       Type t = o.GetType();
       PropertyInfo[] properties = t.GetProperties();
   
   
   Object p = t.InvokeMember("", System.Reflection.
       BindingFlags.CreateInstance, null, o, null);
   
   
   foreach (PropertyInfo pi in properties)
   {
       if (pi.CanWrite)
       {
           pi.SetValue(p, pi.GetValue(o, null), null);
       }
   }
   return p;
   
   
   }
   

Use it like:

private void button1_Click(object sender, EventArgs e)
{
GroupBox g = (GroupBox)CloneObject(groupBox1);
}

Both methods are described here