Empty event handler

• Jun 07, 2019

CodeRush Classic shows the Empty event handler code issue if an event handler is empty.

Fix

Remove the empty event handler.

Purpose

Empty event handler directs your attention to empty event handlers, which can be removed to improve your code readability.

Example

C#

public Button CreateButton()
{
    Button myButton = new Button();
    myButton.Text = "Click me";
    myButton.Click += myButton_Click;
    myButton.Enter += myButton_Enter;
    return myButton;
}
void myButton_Click(object sender, EventArgs e)
{
    Console.WriteLine("Button clicked");
}
void │myButton_Enter(object sender, EventArgs e)
{

}

Fix:

C#

public Button CreateButton()
{
    Button myButton = new Button();
    myButton.Text = "Click me";
    myButton.Click += myButton_Click;
    return myButton;
}
void myButton_Click(object sender, EventArgs e)
{
    Console.WriteLine("Button clicked");
}