c# how to change the tray icon

Question

I'm still learning C# and I'm stuck. My problem is that I have a tray icon, which has to be changed when somthing happens.

I have added the new icon as an existing item to the project and I'm trying to change it by using this code:

this.notifyIcon1.Icon = new Icon(GetType(), "newmailIcon.ico");

But I'm getting the following error:

Resource 'newmailIcon.ico' cannot be found in class 'Traym_Icon.Form1'.

Answer 1

您必须手动将newmailIcon.ico添加为项目中的资源文件。

Answer 2

right click on your image, click propereties and at the Build action, choose Embed.

or create a .resx in which you will keep your icons.