C# Passing a method as a parameter to another method [duplicate]

Answer 1

Look into the Func and Action classes. You can achieve this using the following:

public void ErrorDBConcurrency(DBConcurrencyException e, Action method)
{
    if (MessageBox.Show("You must refresh the datasource") == DialogResult.OK)
        method()
}

public void Method()
{
    // do stuff
}
//....

Call it using

ErrorDBConcurrency(ex, Method)

Take a look at this article for some details. If you want your method to take a parameter, use Action, Action, etc. If you want it to return a value, use Func etc. There are many overloads of these generic classes.