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/// <summary>
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    {
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        string filename = ImageUpload.FileName;
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        string picture=filename.Substring(filename.LastIndexOf("/")+1);
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        string str = "image/";
        str += picture;
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        string path = Server.MapPath("image/") + filename;
        ImageUpload.SaveAs(path);
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        Image1.ImageUrl = "image/" + filename;
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