public void RemoveElement(GuestHistory guestHistory)
{
Type fileType = guestHistory.GetType();
var reader = new XmlGuestHistoryReader(this._filePath);
_ = reader.Exist(guestHistory) ? "Delete this one" : throw new ArgumentException($"There is no the same {fileType.Name}.");
XmlElement xRoot = this.Xml.DocumentElement;
XmlNode child = xRoot.SelectSingleNode(fileType.Name + $"[Id='{fileType.GetProperty("Id").GetValue(guestHistory)}']");
this.Xml.DocumentElement.RemoveChild(child);
this.Xml.Save(this._filePath);
}
public void AppendElement(GuestHistory guestHistory)
{
Type fileType = guestHistory.GetType();
XmlGuestHistoryReader reader = new XmlGuestHistoryReader(this._filePath);
_ = reader.Exist(guestHistory) ? throw new ArgumentException($"The same {fileType.Name} already exists.") : "Create new one";
XmlElement newElement = this.Xml.CreateElement(string.Empty, fileType.Name, string.Empty);
_ = this.Xml.DocumentElement?.AppendChild(newElement) ?? throw new ArgumentException("There is no root in xml file");
foreach (var propertyInfo in fileType.GetProperties())
{
XmlElement child = this.Xml.CreateElement(string.Empty, propertyInfo.Name, string.Empty);
XmlText childText = this.Xml.CreateTextNode(propertyInfo.GetValue(guestHistory).ToString());
child.AppendChild(childText);
newElement.AppendChild(child);
}
this.Xml.Save(this._filePath);
}