public bool LoadFromJsonString(string json)
{
JsonArray result = JsonArray.Parse(json);
ProductList products = new ProductList();
foreach (var jsonProd in result)
{
JsonObject jsonProdObject = jsonProd.GetObject();
products.Add(new Product
{
ProductID = Convert.ToInt32(jsonProdObject.GetNamedNumber("ProductID")),
ProductName = jsonProdObject.GetNamedString("ProductName"),
//CategoryName = jsonProdObject.GetNamedString("CategoryName"),
UnitPrice = (decimal)jsonProdObject.GetNamedNumber("UnitPrice"),
QuantityPerUnit = jsonProdObject.GetNamedString("QuantityPerUnit"),
UnitsInStock = Convert.ToInt16(jsonProdObject.GetNamedNumber("UnitsInStock"))
}
);
}
foreach (Product p in products)
{
this.Items.Add(p);
}
return(Items.Count > 0);
}
private static string GetProductsAsJson()
{
string json = "";
var products = new ProductList();
string appDataDirectory = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + @"\DesktopBridge.Samples\";
string savedappDataDirectory = Windows.Storage.ApplicationData.Current.TemporaryFolder.Path;
string savedappDataFilePath = savedappDataDirectory + @"\" + filenName;
appDataFilePath = appDataDirectory + filenName;
//Load Product list from last save
if (File.Exists(savedappDataFilePath))
{
File.Delete(appDataFilePath);
File.Copy(savedappDataFilePath, appDataFilePath);
}
if (!File.Exists(appDataFilePath))
{
if (!Directory.Exists(appDataDirectory))
{
Directory.CreateDirectory(appDataDirectory);
}
string installDirectory = System.Reflection.Assembly.GetExecutingAssembly().Location;
DirectoryInfo info = Directory.GetParent(installDirectory);
File.Copy(info.FullName + @"\" + filenName, appDataFilePath);
}
ds = new DataSet();
ds.ReadXml(appDataFilePath);
var reader = ds.CreateDataReader();
while (reader.Read())
{
Product product = new Product();
product.ProductID = int.Parse((string)reader.GetValue(0));
product.ProductName = (string)reader.GetValue(1);
product.QuantityPerUnit = (string)reader.GetValue(2);
product.UnitPrice = decimal.Parse((string)reader.GetValue(3));
product.UnitsInStock = int.Parse((string)reader.GetValue(4));
products.Add(product);
Console.WriteLine("Product: " + product.ProductName);
}
Console.WriteLine("Products count: {0}", products.Count);
ds.Dispose();
if (products.Count > 0)
{
Console.WriteLine("Serializing products...");
JsonArray jsonArray = new JsonArray();
foreach (Product prod in products)
{
JsonObject jsonProd = new JsonObject();
jsonProd.Add("ProductID", JsonValue.CreateNumberValue(prod.ProductID));
jsonProd.Add("ProductName", JsonValue.CreateStringValue(prod.ProductName));
jsonProd.Add("QuantityPerUnit", JsonValue.CreateStringValue(prod.QuantityPerUnit));
jsonProd.Add("UnitPrice", JsonValue.CreateNumberValue((double)(prod.UnitPrice)));
jsonProd.Add("UnitsInStock", JsonValue.CreateNumberValue(prod.UnitsInStock));
jsonArray.Add(jsonProd);
}
json = jsonArray.Stringify();
}
return(json);
}
