使用在SharpDevelop中创建的ShowDialog（）方法时，IronPython错误，“'TextBox'对象没有属性'text'”

I am trying to call a form designed in SharpDevelop within another IDE. I get the following error message: 'TextBox' object has no attribute 'text'. This happens when I run the script which includes the lines shown below in the other IDE. Is the problem in the script itself or in the Form1 class written in SharpDevelop? How can I resolve this? I am trying to call a form designed in SharpDev