[ASP.NET 3.5][C#] CS0103: Name 'Label1' do not exist current content

Could I not use Label1  in Page_Load() ?  Why ?

Compile Error Message: CS0103: Name 'Label1' do not exist current content


Source Code Error:








Line 19: Label3.Text = Resources.Resource.ResourceManager.GetString("LoginName");
Line 20: Label2.Text = Resources.Resource.ResourceManager.GetString("LoginName");
Line 21: Label1.Text = Resources.Resource.ResourceManager.GetString("LoginName");
Line 22: }
Line 23: protected override void InitializeCulture()








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