c# - 如何将数据类型(string)转换为类型(form)

Question

我有一个存储在字符串变量中的表单名称，我想将这个字符串传递给采用表单类型的类

string Str = "MainForm";       // this is form name 
// I try to convert the data type string to form type like this
Form FormNm = (Form) Str ;
// there is the message appears cannot convert type 'sting'   to 'form'
TransLang.SaveControlsLanguage(FormNm);   // this is the class

谢谢

Answer 1

string myType = "MyAssembly.MyType";

Assembly asm = Assembly.LoadFrom("MyAssembly.dll"); // creating instance by loading from other assembly
//Assembly asm = Assembly.GetExecutingAssembly();  // for creating instance from same assembly
//Assembly asm = Assembly.GetEntryAssembly(); // for creating instance from entry assembly
Type t = asm.GetType(myType);

Object obj = Activator.CreateInstance(t, null, null);

因为它是一个 System.Windows.Form 如果你想显示你可以做的表单

Form frm = obj as Form; // safely typecast
if (frm != null) // kewl it is of type Form
{
    //work with your form
    fmr.Show();
}