Created a button dynamically but it doesnt fire (ASP.NET)

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ASP.NET

Hi. I managed to create a button dynamically in a panel and assigned a function to fire when clicked. Ok i can see the button in the panel but when i click, function doesnt fire. (Actually button vanishes too.) This is the code:

Button eklemeButonu = new Button();
            eklemeButonu.Text = "Add";
            eklemeButonu.ID = "eklemeButonu";
            eklemeButonu.Attributes.Add("runat", "server");
            eklemeButonu.Click += EklemeButonu_Click;

Panel2.Controls.Add(eklemeButonu);

private void EklemeButonu_Click(object sender, EventArgs e)
       {
            //show message
       }

What I have tried:

put "runat server" attribute and some other attributes. but didnt work.