how to upload an image in a web app and store the same in a database

@using (Html.BeginForm("UploadFile", "Upload", FormMethod.Post, new {enctype = "multipart/form-data"}))
{
      @Html.AntiForgeryToken()
      <div class="form-group">
           <input type="file" id="fileToUpload" name="file" />
           <span class="field-validation-error" id="spanfile"></span>
      </div>
      <div class="form-group">
           <input type="submit" value="Upload" class="btn btn-info" id="UploadFile" name="action" />
      </div>
} 

[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> UploadFile(HttpPostedFileBase file, CustomModel model)
{
    if (ModelState.IsValid)
    {
        if (file == null)
        {
            ModelState.AddModelError(string.Empty, "please upload a file");
        }
        else if (file.ContentLength > 0)
        {
             // check if its a valid image type

             // get the byte array
             byte[] byteArray = file.ToByteArray();
             // Store this byte array in db
        }
    }

    return View(model);
}