web controls in satic metho

HI,
i have 2 web pages UploadImages.aspx and browsImages.aspx .


In browsImages.aspx.cs i called satatic method of UploadImages.aspx.cs previewImages() but i cant acces web control to binda data in previewImages() method


here is the code
/***********************************

1.i access UploadImages.aspx class using
browsImages.aspx.cs
uploadImagesaspx.previewImages();


*************************************************************

UploadImages.aspx
<ext:Store runat="server" ID="Store1" AutoLoad="true">
                <Reader>
                    <ext:JsonReader>
              &n ...