How to use a dynamic forms names in a class (C#.Net)

Question

I had long time developing windows applications using VB.NET and one of thing that I was always use is:

Class (Test) and inside it there are some subs like the following:

VB.NET Code

 Friend Sub FLoadKeyLock(ByVal FRMNAME As Object)
        FRMNAME.Button3.Enabled = true;
        FRMNAME.Button4.Enabled = true;
        FRMNAME.Button1.Enabled = false;
        FRMNAME.Button2.Enabled = false;
        FRMNAME.Button5.Enabled = false;
        FRMNAME.Button6.Enabled = false;
        FRMNAME.Button7.Enabled = false;
        FRMNAME.Button8.Enabled = false;
        FRMNAME.Button9.Enabled = false;
        FRMNAME.Button10.Enabled = false;
 End Sub

Where FRMNAME refers to forms name that I send from different forms and I use (me) keyword to send current form name to apply that sub.

That was totally works fine in VB.NET but I cannot use it the same way in C#.NET.

C#.NET Code

 internal void FLoadKeyLock (Form FRMNAME)
    {
        FRMNAME.Button3.Enabled = true;
        FRMNAME.Button4.Enabled = true;
        FRMNAME.Button1.Enabled = false;
        FRMNAME.Button2.Enabled = false;
        FRMNAME.Button5.Enabled = false;
        FRMNAME.Button6.Enabled = false;
        FRMNAME.Button7.Enabled = false;
        FRMNAME.Button8.Enabled = false;
        FRMNAME.Button9.Enabled = false;
        FRMNAME.Button10.Enabled = false;
    }

The Error is: System.Windows.Forms.Form' does not contain a definition for 'Button3' and no extension method 'Button3' accepting a first argument of type

And same error for all used buttons.

So I have two questions:

1 - How to use such a function in C#.NET?

2 - Why it's not working the same way as VB.NET?

If you want to use dynamic, change the C# method signature to internal void FLoadKeyLock (dynamic FRMNAME). Obviously you compile-time type-safety. — Maarten
– Maarten, Commented Nov 12, 2015 at 12:31
Your method has no actual way of "knowing" what buttons are there in your form, unless you pass the actual type of the form (like MyForm, instead of the base Form class. If it was a Form, how can you ensure that your method will not receive a form instance that doesn't actually have any of those buttons? — Fede
– Fede, Commented Nov 12, 2015 at 12:39
That said, I suggest you research about proper design patterns. — Fede
– Fede, Commented Nov 12, 2015 at 12:40

Marlis Havroc · Accepted Answer · 2015-11-12 12:56:31Z

1

As @Maarten said. dynamic has solved my problem

internal void FLoadKeyLock (dynamic FRMNAME)
{
    FRMNAME.Button3.Enabled = true;
    FRMNAME.Button4.Enabled = true;
    FRMNAME.Button1.Enabled = false;
    FRMNAME.Button2.Enabled = false;
    FRMNAME.Button5.Enabled = false;
    FRMNAME.Button6.Enabled = false;
    FRMNAME.Button7.Enabled = false;
    FRMNAME.Button8.Enabled = false;
    FRMNAME.Button9.Enabled = false;
    FRMNAME.Button10.Enabled = false;
}

answered Nov 12, 2015 at 12:56

Marlis Havroc

431 silver badge7 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to use a dynamic forms names in a class (C#.Net)

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related