private void UpdateJson(InfographicSettingsModel model)
{
using (var fs = System.IO.File.Open(Server.MapPath("signups.txt"), FileMode.Truncate))
using (var sw = new StreamWriter(fs))
using (JsonWriter jw = new JsonTextWriter(sw))
{
jw.Formatting = Formatting.None;
var serializer = new JsonSerializer();
serializer.Serialize(jw, model);
}
}
public ActionResult Index()
{
var model = new InfographicSettingsModel();
using (var fs = System.IO.File.Open(Server.MapPath("signups.txt"), FileMode.Open))
{
using (var sw = new StreamReader(fs))
{
using (var jw = new JsonTextReader(sw))
{
var serializer = new JsonSerializer();
model = serializer.Deserialize<InfographicSettingsModel>(jw);
}
}
}
return View(model ?? new InfographicSettingsModel());
}
public ActionResult Index(InfographicSettingsModel model)
{
if (!ModelState.IsValid) return View(model);
try
{
UpdateJson(model);
model.Message = "Changes saved.";
}
catch (IOException ex)
{
//file is being used by another process, retry
UpdateJson(model);
}
return View(model);
}