Using Reflection.Assembly to Load Forms from a Table

Thiscode sample is going to make your day. The scenario where this codecould be quite helpful is where you are fetching a form name from thedatabase and would like to open that form by passing the name as astring variable. To accomplish this task you will have to use theSystem.Reflection.Assembly class.

[C#]

using System.Reflection;
…
…
…
try {
Assembly myAssembly = Assembly.GetExecutingAssembly();
Form myForm = myAssembly.CreateInstance(txtFormName.text) as Form;
myForm.ShowDialog();
}
catch (System.NullReferenceException exNull) {
MessageBox.Show ("Invalid Form name. Please note that Form names " +
"are case sensitive.", "Form not found");

System.Diagnostics.Trace.WriteLine("-*-*-*-*-*-*-*-*-*-*-*-*-*-*-" +
Environment.NewLine + "Project Load" +
Environment.NewLine + exNull.ToString());
}
catch (Exception ex) {
MessageBox.Show (ex.ToString());
}
…
…

Notethat the form name in the textbox should include its completenamespace. For example, "Project1.Formname" or "Inventory.frmItem".