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protected void Button1_Click(object sender, EventArgs e) { if (IsPostBack) { Boolean fileOK = false; String path = Server.MapPath(~/UploadedImages/); if (FileUpload1.HasFile) { String fileExtension = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower(); String[] allowedExtensions = { .gif, .png, .jpeg, .jpg }; for (int i = 0; i < allowedExtensions.Length; i++) { if (fileExtension == allowedExtensions[i]) { fileOK = true; } } } if (fileOK) { try { FileUpload1.PostedFile.SaveAs(path + FileUpload1.FileName); Label1.Text = File uploaded!; } catch (Exception ex) { Label1.Text = File could not be uploaded.; } } else { Label1.Text = Cannot accept files of this type.; } } }úÿMSDNķ,ϣ
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