public static void SaveProduct(Product pr)
{
if (pr == null)
return;
Char separator = System.Globalization.CultureInfo.CurrentCulture.NumberFormat.CurrencyDecimalSeparator[0];
DialogResult res = MessageBox.Show("Сохранить изменения?", "Программа ",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question, MessageBoxDefaultButton.Button1);
if (res == DialogResult.Yes)
{
XmlElement xRoot = pr.Xml.DocumentElement;
foreach (XmlElement xnode in xRoot)
{
if (xnode.GetHashCode() == pr.XmlIndex)
{
XmlNode type = xnode.Attributes.GetNamedItem("type");
type.Value = pr.Type;
XmlNode name = xnode.Attributes.GetNamedItem("name");
name.Value = pr.Name;
XmlNode fat = xnode.Attributes.GetNamedItem("fat");
fat.Value = pr.Fat;
foreach (XmlNode childnode in xnode.ChildNodes)
{
if (childnode.Name == "NormalizedMixture")
{
double.Parse(childnode.InnerText = pr.NormalizedMixture.ToString());
XmlNode mixName = childnode.Attributes.GetNamedItem("name");
if (mixName != null)
mixName.Value = pr.MixtureName;
XmlNode mixFat = childnode.Attributes.GetNamedItem("fat");
if (mixFat != null)
mixFat.Value = pr.MixtureFat;
}
if (childnode.Name == "milk_base")
{
double.Parse(childnode.InnerText = pr.MilkBaseValue.ToString());
XmlNode milkFat = childnode.Attributes.GetNamedItem("fat");
if (milkFat != null)
milkFat.Value = pr.MilkBaseFat;
}
if (childnode.Name == "milk_nofat")
{
double.Parse(childnode.InnerText = pr.MilkNofatValue.ToString());
}
if (childnode.Name == "Plotn")
{
Double.Parse(childnode.InnerText = pr.Plotn.ToString());
}
if (childnode.Name == "image_name")
{
pr.ImageName = childnode.InnerText;
}
else { pr.ImageName = ("notfound"); }
}
}
}
try
{
pr.Xml.Save(@"../../Xmls/products.xml");
//MessageBox.Show("Данные успешно сохранены.", "Сообщение.");
}
catch
{
MessageBox.Show("Невозможно сохранить XML файл.", "Ошибка.");
}
}
if (res == DialogResult.No)
{
return;
}
}
public static List<Product> GetProduct() //считывание файла products xml
{
Char separator = System.Globalization.CultureInfo.CurrentCulture.NumberFormat.CurrencyDecimalSeparator[0];
System.Globalization.NumberStyles style;
System.Globalization.CultureInfo culture;
style = System.Globalization.NumberStyles.Number |
System.Globalization.NumberStyles.AllowCurrencySymbol;
culture = System.Globalization.CultureInfo.CurrentUICulture;
string pathFile = @"../../Xmls/products.xml";
if (!File.Exists(pathFile)) //если файл не найден
{
MessageBox.Show("File products not found");
return null;
}
else
{
try
{
List<Product> products = new List<Product>();
XmlDocument xDoc = new XmlDocument();
xDoc.Load(pathFile);
XmlElement xRoot = xDoc.DocumentElement;
foreach (XmlElement xnode in xRoot)
{
Product product = new Product();
product.Xml = xDoc;
product.XmlIndex = xnode.GetHashCode();
foreach (XmlNode childnode in xnode.ChildNodes)
{
XmlNode type = xnode.Attributes.GetNamedItem("type");
if (type == null)
return null;
product.Type = type.Value;
XmlNode name = xnode.Attributes.GetNamedItem("name");
if (name == null)
return null;
product.Name = name.Value;
XmlNode fat = xnode.Attributes.GetNamedItem("fat");
if (fat == null)
return null;
product.Fat = fat.Value;
if (childnode.Name == "NormalizedMixture")
{
if (Double.TryParse(childnode.InnerText.Replace('.', separator), style, culture, out double result))
{
product.NormalizedMixture = result;
}
else { MessageBox.Show("Значение тега NormalizedMixture неверно ", "Ошибка"); product.NormalizedMixture = 0; }
XmlNode mixName = childnode.Attributes.GetNamedItem("name");
if (mixName != null)
product.MixtureName = mixName.Value;
XmlNode mixFat = childnode.Attributes.GetNamedItem("fat");
if (mixFat != null)
product.MixtureFat = mixFat.Value;
}
if (childnode.Name == "milk_base")
{
if (Double.TryParse(childnode.InnerText.Replace('.', separator), style, culture, out double result))
{
product.MilkBaseValue = result;
}
else { MessageBox.Show("Значение тега milk_base неверно ", "Ошибка"); product.MilkBaseValue = 0; }
XmlNode milkFat = childnode.Attributes.GetNamedItem("fat");
if (milkFat != null)
product.MilkBaseFat = milkFat.Value;
}
if (childnode.Name == "milk_nofat")
{
if (Double.TryParse(childnode.InnerText.Replace('.', separator), style, culture, out double result))
{
product.MilkNofatValue = result;
}
else { MessageBox.Show("Значение тега milk_nofat неверно ", "Ошибка"); product.MilkNofatValue = 0; }
}
if (childnode.Name == "Performance")
{
if (Double.TryParse(childnode.InnerText.Replace('.', separator), style, culture, out double result))
{
product.Performance = result;
}
else { MessageBox.Show("Значение тега Performance неверно ", "Ошибка"); product.Performance = 0; }
}
if (childnode.Name == "Plotn")
{
if (Double.TryParse(childnode.InnerText.Replace('.', separator), style, culture, out double result))
{
product.Plotn = result;
}
else { MessageBox.Show("Значение тега Plotn неверно ", "Ошибка"); product.Plotn = 0; }
}
if (childnode.Name == "image_name")
{
product.ImageName = childnode.InnerText;
}
else { product.ImageName = ("notfound"); }
}
products.Add(product);
}
return products;
}
catch(Exception exc)
{
MessageBox.Show("Ошибка чтения файла. \n " + exc.ToString(), "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
}
