can I call shared events contained in one class from another class?
for example:
logonclass.vb : handles login logic and authenticates against database
logonmanager.vb: hold current user reference and some logon and timeout events
Logon.vb: A form with a submit button.
I would like to do something like this but I can't get the compiler to agree with it
If VerifyEntries() Then
Try
privLvl = LoginClass.AttemptLogin(txtUserName.Text, txtPassword.Text)
Catch
End Try
If privLvl > 0 Then
'RaiseEvent LoginClass.UserLoggedIn()
'RaiseEvent LoginManager.UIdisplaychange(privLvl)
Me.Close()
End If
End If
If this isn't the proper way to wire things together let me know so I can learn to structure differently. In my planning it seemed like I was raising a lot of extra duplicate events from my logonclass to my loginmanager class. Then the loginmanager had to raise it again for the main form to see the change event. It got me thinking that if I publicly shared the events and could raise them from wherever then it would cut down on the amount of events I needed in code and the amount of them flying around at runtime.
In C# the "event" keyword generates a private delegate member object. So it can be accessed only for the class where is defined. But you can expose a public method that will fire the event, and this method can be accessed from outside. I think that in VB is the same.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With