How to create an instance of a form dinamically?

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Dear all
I have a project that created all forms at design time, and saved its names in database, now when the application is running, it loads the all forms names from the database and store each one in array as a string.
Now I have the form name as a string, I want to create the form by the name which I have at run time. Can you help me please?

ex:

VB

Dim strFormName As String = "frmMyForm"

Posted 20-May-15 22:01pm

fadi77_net

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DamithSL · Answer 1 · 2015-05-20T22:09:00

Solution 1

try with below method

VB

Public Function TryGetFormByName(frmname As String) As Form
    Dim formType = Assembly.GetExecutingAssembly().GetTypes().Where(Function(a) a.BaseType = GetType(Form) AndAlso a.Name = frmname).FirstOrDefault()

    If formType Is Nothing Then
        Return Nothing
    End If

    Return DirectCast(Activator.CreateInstance(formType), Form)
End Function

refer : Winforms, get form instance by form name[^]

Posted 20-May-15 22:09pm

DamithSL

Comments

fadi77_net 21-May-15 10:48am

I can see a.Name, Function(a), and a.BaseType
What is a?

fadi77_net 21-May-15 12:32pm

I tried it but it is not working with me, because my form is not form type Form, I have another type, it is frmBasedChiled, so I want to get an instance of the frmBasedChiled class

DamithSL 21-May-15 13:02pm

then change Form to frmBasedChiled

fadi77_net 22-May-15 15:00pm

Thank you very much, it is working with me