C# XMLDocument-白红宇

C# XMLDocument

阅读量：6569 次

发布时间：2019-06-24

本文共 14075 字，大约阅读时间需要 46 分钟。

今天开发一个WPF模块需要本地化保存一些用户设置，鉴于数据量不大，用XML。（要是再小的话可以用Resources 和 Settings）。

清晰简短教程移步：

代码如下：

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows;using System.Xml;using System.Xml.Serialization;using Microsoft.Kinect;namespace KinectHost{    class SettingsXMLConfig    {        public SettingsXMLConfig(){            createXML();        }        public void AddDoor(string name, string x, string y, string z, string threshold)        {            try            {                XmlElement doors = null;                XmlElement theDoor = null, theName = null, theX = null, theY = null, theZ = null, theThreshold = null, root = null;                string path = GetFolderPath();                string filepath = Path.Combine(path, "XMLSettings.xml");                if (File.Exists(filepath))                {                    XmlDocument xmlSetting = new XmlDocument();                    xmlSetting.Load(filepath);                    root = xmlSetting.DocumentElement;                    doors = (XmlElement)root.SelectSingleNode("/XMLSettings/doors");                    theDoor = xmlSetting.CreateElement("door");                    theName = xmlSetting.CreateElement("name");                    theName.InnerText = name;                    theX = xmlSetting.CreateElement("x");                    theX.InnerText = x;                    theY = xmlSetting.CreateElement("y");                    theY.InnerText = y;                    theZ = xmlSetting.CreateElement("z");                    theZ.InnerText = z;                    theThreshold = xmlSetting.CreateElement("threshold");                    theThreshold.InnerText = threshold;                    theDoor.AppendChild(theName);                    theDoor.AppendChild(theX);                    theDoor.AppendChild(theY);                    theDoor.AppendChild(theZ);                    theDoor.AppendChild(theThreshold);                    doors.AppendChild(theDoor);                    xmlSetting.Save(filepath);                }                else                {                    MessageBox.Show("XML Settings file doesn't extist!");                }            }            catch (Exception exc)            {                MessageBox.Show(exc.ToString());            }        }        public void RemoveDoor(string name)        {            XmlElement root = null, door = null;            try            {                 string path = GetFolderPath();                string filepath = Path.Combine(path, "XMLSettings.xml");                if (File.Exists(filepath))                {                    XmlDocument xmlSetting = new XmlDocument();                    xmlSetting.Load(filepath);                    root = xmlSetting.DocumentElement;                    door = (XmlElement)root.SelectSingleNode("/XMLSettings/doors/door[name='" + name + "']");                    door.ParentNode.RemoveChild(door);                                                         xmlSetting.Save(filepath);                }                else                {                    MessageBox.Show("XML Settings file doesn't extist!");                }            }            catch (Exception exc)            {                MessageBox.Show(exc.ToString());            }        }        public List
     
       SelectDoors(KinectSensor kinectSensor){            XmlElement root = null, doors = null;            List
      
        crossDoorDetectorList = new List
       
        ();            try            {                string path = GetFolderPath();                string filepath = Path.Combine(path, "XMLSettings.xml");                if (File.Exists(filepath))                {                    XmlDocument xmlSetting = new XmlDocument();                    xmlSetting.Load(filepath);                    root = xmlSetting.DocumentElement;                    doors = (XmlElement)root.SelectSingleNode("/XMLSettings/doors");                    string name = "";                    float x = 0;                    float y = 0;                    float z = 0;                    double threshold = 0;                    if (doors.ChildNodes.Count > 0)                    {                        //XmlNode xn = doors.SelectSingleNode("door");                        XmlNodeList xnl = doors.ChildNodes;                        foreach (XmlNode xnf in xnl)                        {                            XmlElement xe = (XmlElement)xnf;                            name = ((XmlElement)xe.SelectSingleNode("name")).InnerText;                            float.TryParse(((XmlElement)xe.SelectSingleNode("x")).InnerText, out x);                            float.TryParse(((XmlElement)xe.SelectSingleNode("y")).InnerText, out y);                            float.TryParse(((XmlElement)xe.SelectSingleNode("z")).InnerText, out z);                            double.TryParse(((XmlElement)xe.SelectSingleNode("threshold")).InnerText, out threshold);                            crossDoorDetectorList.Add(new CrossDoorDetector(name, x, y, z, threshold, kinectSensor));                        }                        return crossDoorDetectorList;                    }                    else                    {                        return null;                    }                }                else                {                    MessageBox.Show("XML Settings file doesn't extist!");                    return null;                }            }            catch (Exception exc)            {                MessageBox.Show(exc.ToString());                return null;            }        }        public void AddObject(string name, string x, string y, string z, string radius)        {            try            {                XmlElement doors = null;                XmlElement theObject = null, theName = null, theX = null, theY = null, theZ = null, ObjectRadius = null, root = null;                string path = GetFolderPath();                string filepath = Path.Combine(path, "XMLSettings.xml");                if (File.Exists(filepath))                {                    XmlDocument xmlSetting = new XmlDocument();                    xmlSetting.Load(filepath);                    root = xmlSetting.DocumentElement;                    doors = (XmlElement)root.SelectSingleNode("/XMLSettings/objects");                    theObject = xmlSetting.CreateElement("object");                    theName = xmlSetting.CreateElement("name");                    theName.InnerText = name;                    theX = xmlSetting.CreateElement("x");                    theX.InnerText = x;                    theY = xmlSetting.CreateElement("y");                    theY.InnerText = y;                    theZ = xmlSetting.CreateElement("z");                    theZ.InnerText = z;                    ObjectRadius = xmlSetting.CreateElement("radius");                    ObjectRadius.InnerText = radius;                    theObject.AppendChild(theName);                    theObject.AppendChild(theX);                    theObject.AppendChild(theY);                    theObject.AppendChild(theZ);                    theObject.AppendChild(ObjectRadius);                    doors.AppendChild(theObject);                    xmlSetting.Save(filepath);                }                else                {                    MessageBox.Show("XML Settings file doesn't extist!");                }            }            catch (Exception exc)            {                MessageBox.Show(exc.ToString());            }        }        public List
        
          SelectObjects()        {            XmlElement root = null, objects = null;            List
         
           objectPointingList = new List
          
           (); try { string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); xmlSetting.Load(filepath); root = xmlSetting.DocumentElement; objects = (XmlElement)root.SelectSingleNode("/XMLSettings/objects"); string name = ""; float x = 0; float y = 0; float z = 0; float radius = 0; if (objects.ChildNodes.Count > 0) { //XmlNode xn = doors.SelectSingleNode("door"); XmlNodeList xnl = objects.ChildNodes; foreach (XmlNode xnf in xnl) { XmlElement xe = (XmlElement)xnf; name = ((XmlElement)xe.SelectSingleNode("name")).InnerText; float.TryParse(((XmlElement)xe.SelectSingleNode("x")).InnerText, out x); float.TryParse(((XmlElement)xe.SelectSingleNode("y")).InnerText, out y); float.TryParse(((XmlElement)xe.SelectSingleNode("z")).InnerText, out z); float.TryParse(((XmlElement)xe.SelectSingleNode("radius")).InnerText, out radius); objectPointingList.Add(new ObjectPointing(name, x, y, z, radius)); } return objectPointingList; } else { return null; } } else { MessageBox.Show("XML Settings file doesn't extist!"); return null; } } catch (Exception exc) { MessageBox.Show(exc.ToString()); return null; } } public void RemoveObject(string name) { XmlElement root = null, Object = null; try { string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); xmlSetting.Load(filepath); root = xmlSetting.DocumentElement; Object = (XmlElement)root.SelectSingleNode("/XMLSettings/objects/object[name='" + name + "']"); Object.ParentNode.RemoveChild(Object); xmlSetting.Save(filepath); } else { MessageBox.Show("XML Settings file doesn't extist!"); } } catch (Exception exc) { MessageBox.Show(exc.ToString()); } } public void AddLocation(string name, string x, string y, string z) { try { XmlElement doors = null; XmlElement theLocation = null, theName = null, theX = null, theY = null, theZ = null, root = null; string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); xmlSetting.Load(filepath); root = xmlSetting.DocumentElement; doors = (XmlElement)root.SelectSingleNode("/XMLSettings/locations"); theLocation = xmlSetting.CreateElement("location"); theName = xmlSetting.CreateElement("name"); theName.InnerText = name; theX = xmlSetting.CreateElement("x"); theX.InnerText = x; theY = xmlSetting.CreateElement("y"); theY.InnerText = y; theZ = xmlSetting.CreateElement("z"); theZ.InnerText = z; theLocation.AppendChild(theName); theLocation.AppendChild(theX); theLocation.AppendChild(theY); theLocation.AppendChild(theZ); doors.AppendChild(theLocation); xmlSetting.Save(filepath); } else { MessageBox.Show("XML Settings file doesn't extist!"); } } catch (Exception exc) { MessageBox.Show(exc.ToString()); } } public List
           
             SelectLocations() { XmlElement root = null, objects = null; List
            
              locationDetectorList = new List
             
              (); try { string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); xmlSetting.Load(filepath); root = xmlSetting.DocumentElement; objects = (XmlElement)root.SelectSingleNode("/XMLSettings/locations"); string name = ""; float x = 0; float y = 0; float z = 0; if (objects.ChildNodes.Count > 0) { //XmlNode xn = doors.SelectSingleNode("door"); XmlNodeList xnl = objects.ChildNodes; foreach (XmlNode xnf in xnl) { XmlElement xe = (XmlElement)xnf; name = ((XmlElement)xe.SelectSingleNode("name")).InnerText; float.TryParse(((XmlElement)xe.SelectSingleNode("x")).InnerText, out x); float.TryParse(((XmlElement)xe.SelectSingleNode("y")).InnerText, out y); float.TryParse(((XmlElement)xe.SelectSingleNode("z")).InnerText, out z); locationDetectorList.Add(new LocationDetector(name, x, y, z)); } return locationDetectorList; } else { return null; } } else { MessageBox.Show("XML Settings file doesn't extist!"); return null; } } catch (Exception exc) { MessageBox.Show(exc.ToString()); return null; } } public void RemoveLocation(string name) { XmlElement root = null, location = null; try { string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); xmlSetting.Load(filepath); root = xmlSetting.DocumentElement; location = (XmlElement)root.SelectSingleNode("/XMLSettings/locations/location[name='" + name + "']"); location.ParentNode.RemoveChild(location); xmlSetting.Save(filepath); } else { MessageBox.Show("XML Settings file doesn't extist!"); } } catch (Exception exc) { MessageBox.Show(exc.ToString()); } } private string GetFolderPath() { string folder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "XML"); if (!Directory.Exists(folder)) { Directory.CreateDirectory(folder); } return folder; } private void createXML(){ string path = GetFolderPath(); string filepath = Path.Combine(path, "XMLSettings.xml"); if (!File.Exists(filepath)) { XmlDocument xmlSetting = new XmlDocument(); XmlElement root = xmlSetting.CreateElement("XMLSettings"); xmlSetting.AppendChild(root); XmlElement doors = xmlSetting.CreateElement("doors"); XmlElement objects = xmlSetting.CreateElement("objects"); XmlElement locations = xmlSetting.CreateElement("locations"); root.AppendChild(doors); root.AppendChild(objects); root.AppendChild(locations); //string folder = Path.Combine(path, "XMLSettings.xml"); xmlSetting.Save(filepath); } } }}

XML结果：


       
          
             
        
         Bedroom0
              
        
         165.5378
              
        
         208.586
              
        
         2.553757
              
        
         66.0010801284721
            
         
        
          
         
        
          
             
        
         Desk
              
        
         0.02907251
              
        
         0.02481232
              
        
         2.383653