CODEWITHSUNDEEP
c#
fbdg
fbdg

Reputation: 11

Set up single event handler for multiple buttons

Hi im practically new to C# i usually program with c++ so please bear with me. I am coding an application and i have 10 buttons, 5 of which which are practically doing the same thing. Currently I have 5 event handlers doing the same thing. How can I change this to a single even handler with if statements. Also my problem is that even though the methods of each button are the same i have some small differences from one to another as described below:

button 1 copared with button 5 button 2 copmpared with button 6 button 3 compared with button 7 and so on

How can i tackle this small difference in each case?

Thankyou so much

Upvotes: 0

Views: 1242

Answers (2)

Hogan
Hogan

Reputation: 70513

You could set them all to the same handler, get the button that called it, check the id in an if statement and do different actions -- OR -- you could use the much more common refactor that looks like this:

void Button1Action(object sender, EventArgs e)
{

   // do stuff for button 1 here

   SharedCode();
}

void Button2Action(object sender, EventArgs e)
{

   // do stuff for button 2 here

   SharedCode();
}

void Button3Action(object sender, EventArgs e)
{

   // do stuff for button 3 here

   SharedCode();
}


void Button4Action(object sender, EventArgs e)
{

   // do stuff for button 4 here

   SharedCode();
}

void SharedCode()
{

    // do stuff for all buttons

}

Upvotes: 0

Stilgar
Stilgar

Reputation: 23551

button.SomeEvent += SomeHandler

void SomeHandler(object sender, EventArgs e)
{
   Button b = (Button)sender; //get the specific button that was pressed
   ...
}

Use the += operator to add a method to an event and simply add the same method.

Upvotes: 2

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