#131 I'll see you're 5 lines of code and raise you 15! C# +55 
protected void EnableEditButtons(bool Value)
{
    if (Value == false)
    {
        buttonAdd.Disabled = true;
        buttonDelete.Disabled = true;
    }
    else
    {
        buttonAdd.Disabled = false;
        buttonDelete.Disabled = false;
    }
}

// ...

if (IsEditable(ID))
    EnableEditButtons(true);
else
    EnableEditButtons(false);

I found this old code in an app I was updating for a client a number of years back. It was so good I documented it on my own blog.

By Jon Hartmann, 2017-12-12 17:09:54