WriteXML.txt

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.IO;

namespace MillToolsDataBase
{
	public class WriteXML
	{
		internal string filename;
		 public  WriteXML() //!!!!
         { filename = "e:/Learn_Programms/Programming/C#/Projects_C#/MillToolsDataBase/tooldatabase.xml"; }
		
		public void writetofile(List<ToolsDataBase.ToolData> toolList)
		{
			 XmlDocument xDoc = new XmlDocument(); 
			int i = 0;
			if ( System.IO.File.Exists(filename)==false || System.IO.File.ReadAllText(filename)=="")
			{
				
			    XmlElement toolsDataBase = xDoc.CreateElement("ToolsDataBase"); 
				xDoc.CreateComment("uraaaaa");
				xDoc.AppendChild(toolsDataBase);
				XmlNode xRoot = xDoc.DocumentElement;  
				for (i = 0; i < toolList.Count; i++)
				{  XmlElement toolData = xDoc.CreateElement("ToolData"); 
				   toolsDataBase.AppendChild(toolData);
				   XmlElement toolID = xDoc.CreateElement("toolID");  toolID.InnerText = toolList[i].ID.ToString(); toolData.AppendChild(toolID);
				   XmlElement toolType = xDoc.CreateElement("type");  toolType.InnerText = toolList[i].type; toolData.AppendChild(toolType);
				   XmlElement toolDiametr = xDoc.CreateElement("diametr"); toolDiametr.InnerText = toolList[i].diametr.ToString(); toolData.AppendChild(toolDiametr);
				} // for
				xDoc.Save(filename);
			}
			else
			{ 
				xDoc.Load(filename);
			   XmlNode xRoot = xDoc.DocumentElement;
              	for (i = 0; i < toolList.Count; i++)
				{   XmlElement toolData = xDoc.CreateElement("ToolData"); 
					xRoot.AppendChild(toolData);
				    XmlElement toolID = xDoc.CreateElement("toolID");  toolID.InnerText = toolList[i].ID.ToString(); toolData.AppendChild(toolID);
				   XmlElement toolType = xDoc.CreateElement("type");  toolType.InnerText = toolList[i].type; toolData.AppendChild(toolType);
				   XmlElement toolDiametr = xDoc.CreateElement("diametr"); toolDiametr.InnerText = toolList[i].diametr.ToString(); toolData.AppendChild(toolDiametr);
				} // for
				 xDoc.Save(filename);
			} //else
		}
         public int readIDfromXML()
		{
			XmlTextReader xmlReader = new XmlTextReader(filename);
			string nodename; int i = 0;
			while (xmlReader.Read())
			{
				nodename = xmlReader.Name;
				if (nodename == "toolID") i=Convert.ToInt32(xmlReader.ReadString()); 
				//{ toolList.Last t[i].value_name = xmlReader.ReadString(); }
				//{ arrDat[i].value = (float)Convert.ChangeType(xmlReader.ReadString(), typeof(float)); i++; }
			}
			return i;			
		}
	}
}