Button id as an event handler

I am creating 7 buttons on the fly

when i create the but开发者_运维百科tons i am trying to have an event handler than can deal with all clicks in one method via a switch. Ideally i want to pass an id with the button that indicates what was clicked, opposed to this solution of

void pdfButton_Click(object sender, EventArgs e)
{
    Button b = (Button)sender;
    Console.WriteLine(b.Text);
}

as all of the buttons using this event handler have the same text. I have a unique id associated witht the buttons but no idea how to send them

thanks

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You can use the Name or Tag properties.

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Put the ID in the Tag property on the button when you create them and then check the ID in your event handler.

Button button = new Button();
button.Tag = 1;

...

void pdfButton_Click(object sender, EventArgs e)
{
    Button b = (Button)sender;
    switch ((int)b.Tag)
    {
        ...
    }

}

---

First: Bad practice to handle several clicks in one event via switch. But however a solution would be:

Create your own control which inherits the button and ad your ID as an property. So you can access it via:

MyButton b = (MyButton)sender;

switch(b.ID) { 
    //Code goes here 
}

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If each button you add has a unique Id, why not just use the ID property of the button?

Button button = new Button();
button.ID= "Button1";

//...

void pdfButton_Click(object sender, EventArgs e)
{
    Button b = (Button)sender;
    switch(button.ID)
    {
        case "Button1":
          //...
    }

}