Error on 'Timer' is an ambiguous reference between 'System.Windows.Forms.Timer' and 'System.Threading.Timer'

Question

i have error shown:

\'Timer\' is an ambiguous reference between \'System.Windows.Forms.Timer\' and \'System.Threading.Timer\' 

when i added the code for clock

Answer 1

The problem is that you are

using System.Windows.Forms;
using System.Threading;

Both of these namespaces have a Timer class and the compiler can't tell which one to use. When you declare your Timer, use the full name, either:

System.Windows.Forms.Timer

or

System.Threading.Timer

WinForms Timer Class

Threading Timer Class

Based on your usage of the class, I think you want System.Windows.Forms.Timer, like so:

    public SocketClient() 
    { 
        InitializeComponent(); 
        var timer = new System.Windows.Forms.Timer(); 
        timer.Tick += new EventHandler(TimerOnTick); 
        timer.Interval = 1000; 
        timer.Start(); 
    }