protected void btnSave_Click(object sender, EventArgs e)
{
try
{
if (!Page.IsValid) return;
BLTunnit tunti = new BLTunnit();
tunti.koodaaja = txtkoodaaja.Text;
tunti.paivamaara = txtpvm.Text;
tunti.tuntimaara = txttuntimaara.Text;
tunti.minuutit = txtminuutit.Text;
tunti.id = Convert.ToInt64(hndId.Value);
TunnitDAL objTuntiDAL = new TunnitDAL();
if ((hndId.Value.Trim().Length > 0) &&
(Convert.ToInt64(hndId.Value) > 0))
objTuntiDAL.Update(tunti);
else
objTuntiDAL.Create(tunti);
ClearScreen();
BindGrid();
lblMessage.Text = "Record saved successfully";
}
catch (Exception ex)
{
lblMessage.Text = "There is an error occured while processing the request. Please verify the code!";
}
}
/// <summary>
/// This method is used for creating a new employee information in XML file
/// </summary>
/// <param name="employee">employee object</param>
/// <returns>True - Success, False - Failure</returns>
public bool Create(BLTunnit tunti)
{
try
{
// Checking if the file exist
if (!File.Exists(strFileName))
{
// If file does not exist in the database path, create and store an empty tuntit node
XmlTextWriter textWritter = new XmlTextWriter(strFileName, null);
textWritter.WriteStartDocument();
textWritter.WriteStartElement("Tunnit");
textWritter.WriteEndElement();
textWritter.Close();
}
// Create the XML document by loading the file
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(strFileName);
// Creating tunti node
XmlElement subNode = xmlDoc.CreateElement("Tunti");
// Getting the maximum Id based on the XML data already stored
string strId = CommonMethods.GetMaxValue(xmlDoc, "Tunnit" + "/" + "Tunti" + "/" + "id").ToString();
// Adding Id column. tunti generated column
subNode.AppendChild(CommonMethods.CreateXMLElement(xmlDoc, "id", strId));
xmlDoc.DocumentElement.AppendChild(subNode);
subNode.AppendChild(CommonMethods.CreateXMLElement(xmlDoc, "koodaaja", tunti.koodaaja));
xmlDoc.DocumentElement.AppendChild(subNode);
subNode.AppendChild(CommonMethods.CreateXMLElement(xmlDoc, "paivamaara", tunti.paivamaara));
xmlDoc.DocumentElement.AppendChild(subNode);
subNode.AppendChild(CommonMethods.CreateXMLElement(xmlDoc, "tuntimaara", tunti.tuntimaara));
xmlDoc.DocumentElement.AppendChild(subNode);
subNode.AppendChild(CommonMethods.CreateXMLElement(xmlDoc, "minuutit", tunti.minuutit));
xmlDoc.DocumentElement.AppendChild(subNode);
// Saving the file after adding the new tunti node
xmlDoc.Save(strFileName);
return true;
}
catch (Exception ex)
{
throw ex;
}
}
public IList<BLTunnit> GetAll()
{
try
{
if (File.Exists(strFileName))
{
// Loading the file into XPath document
XPathDocument doc = new XPathDocument(strFileName);
XPathNavigator nav = doc.CreateNavigator();
XPathExpression exp = nav.Compile("/Tunnit/Tunti"); // Getting all tuntit
// Sorting the records by id
exp.AddSort("id", System.Xml.XPath.XmlSortOrder.Ascending, System.Xml.XPath.XmlCaseOrder.None, "", System.Xml.XPath.XmlDataType.Text);
XPathNodeIterator iterator = nav.Select(exp);
IList<BLTunnit> objtuntit = new List<BLTunnit>();
while (iterator.MoveNext())
{
XPathNavigator nav2 = iterator.Current.Clone();
BLTunnit objtunti = new BLTunnit();
objtunti.id = Convert.ToInt64(nav2.Select("//tunti").Current.SelectSingleNode("id").InnerXml);
objtunti.koodaaja = nav2.Select("//tunti").Current.SelectSingleNode("koodaaja").InnerXml;
objtunti.paivamaara = nav2.Select("//tunti").Current.SelectSingleNode("paivamaara").InnerXml;
objtunti.tuntimaara = nav2.Select("//tunti").Current.SelectSingleNode("tuntimaara").InnerXml;
objtunti.minuutit = nav2.Select("//tunti").Current.SelectSingleNode("minuutit").InnerXml;
objtuntit.Add(objtunti);
}
return objtuntit;
}
}
catch (Exception ex)
{
throw ex;
}
return null;
}
public bool Update(BLTunnit tunti)
{
try
{
if (File.Exists(strFileName))
{
XmlDocument objXmlDocument = new XmlDocument();
objXmlDocument.Load(strFileName);
// Getting a particular tunti by selecting using Xpath query
XmlNode node = objXmlDocument.SelectSingleNode("//tunti[id='" + tunti.id + "']");
if (node != null)
{
// Assigning all the values
node.SelectNodes("id").Item(0).FirstChild.Value = tunti.id.ToString();
node.SelectNodes("koodaaja").Item(0).FirstChild.Value = tunti.koodaaja;
node.SelectNodes("paivamaara").Item(0).FirstChild.Value = tunti.paivamaara;
node.SelectNodes("tuntimaara").Item(0).FirstChild.Value = tunti.tuntimaara;
node.SelectNodes("minuutit").Item(0).FirstChild.Value = tunti.minuutit;
}
// Saving the file
objXmlDocument.Save(strFileName);
return true;
}
else
{
Exception ex = new Exception("Database file does not exist in the folder");
throw ex;
}
}
catch (Exception ex)
{
throw ex;
}
}
public BLTunnit Get(string id)
{
try
{
if (File.Exists(strFileName))
{
BLTunnit objtunti = new BLTunnit();
XPathDocument doc = new XPathDocument(strFileName);
XPathNavigator nav = doc.CreateNavigator();
XPathNodeIterator iterator;
iterator = nav.Select("//tunti[id='" + id + "']");
while (iterator.MoveNext())
{
XPathNavigator nav2 = iterator.Current.Clone();
objtunti.id = Convert.ToInt64(nav2.Select("//tunti").Current.SelectSingleNode("id").InnerXml);
objtunti.koodaaja = nav2.Select("//tunti").Current.SelectSingleNode("koodaaja").InnerXml;
objtunti.paivamaara = nav2.Select("//tunti").Current.SelectSingleNode("paivamaara").InnerXml;
objtunti.tuntimaara = nav2.Select("//tunti").Current.SelectSingleNode("tuntimaara").InnerXml;
objtunti.minuutit = nav2.Select("//tunti").Current.SelectSingleNode("minuutit").InnerXml;
}
return objtunti;
}
}
catch (Exception ex)
{
throw ex;
}
return null;
}
