Define name of winForm that using the class? C#

Question

I am developing a project with 20 winforms in C#. These forms uses comman class named "databaseOperations". My question is how can i define the winform name(sender) that using method in this class. I want to do something like that below;

public class databaseOperations
    {
        public void loadfile(string path)
        {
            //if (sender form.name== "FormA")
                 {// codes...........;}
            //else if (sender form.name== "FormB")
                 {// codes...........;}
            
        }
    }

I want to get name of winform.

Thanx in advance,

question from:https://stackoverflow.com/questions/65942371/define-name-of-winform-that-using-the-class-c-sharp

Answer 1

A standard pattern is to define this method:

public void LoadFile(Form sender, string path)

Which we call like that:

var dbOps = new DatabaseOperations();

dbOps.LoadFile(myForm or this, "pathToFile");

Thus now we can check like that:

if ( sender.Name == "SomeName" )
{ 
  //...
} 

Or anything else from the sender instance like for example:

sender.Tag

typeof(sender)

This last allows to make a difference between:

• MyFormA
• MyFormB
• And so on...

var typeSender = sender.GetType();
if ( typeSender == typeof(MyFormA) )
else
if ( typeSender == typeof(MyFormB) )

Also a switch can be used.

Instead of using a string name, so if is more robust and maintainable as strings can easily be change and we need to propagate that by hand, and this may cause big problems. Using types, refactoring tools do that for us.

But if several instances of MyForm can have differents Name property values, so we can check it, that's fine too, that just needs to take care.