private void InitializeComponent() { this.btnHomePage.Click += new System.EventHandler(this.btnHomePage_Click); } private void btnHomePage_Click(object sender, System.EventArgs e) { Response.Write("Done"); }try making a new page in a new project. VS does get it's knickers in a twist sometimes, like when you drop a control on the form, can see the declaration in the CodeBehind but can't reference it in IntelliSense