scene

Customize the xml configuration file in Winform and configure the access file path:

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100522648

On the basis of the configuration and reading of the custom configuration file, we continue to read and write the configuration file.

The xml configuration file is as follows:

<?xml version="1.0" encoding="utf-8" ?>
<Configure>
    <!--Y The default number of axes is 1-->
    <yConut>1</yConut>
    <!--Y Axis set-->
    <YAxis>
        <!--Article 1 Y axis-->
        <YAxi>
            <num>1</num>
            <title>temperature</title>
            <color>black</color>
            <min>-1500</min>
            <max>1500</max>
        </YAxi>
        <!--Second article Y axis-->
        <Yaxi>
            <num>2</num>
            <title>Voltage</title>
            <color>black</color>
            <min>-1500</min>
            <max>1500</max>
        </Yaxi>
    </YAxis>
   
</Configure>

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Realization

Configuration file reading

Method to add a tool class

 public static void readConfig()
        {
            //Get the path to the executable file-Namely bin Directory debug perhaps release Catalog
            string context = System.Windows.Forms.Application.StartupPath;
            string path = String.Concat(context,@"\config\YAxisSet.xml"); 
            XmlDocument xml = new XmlDocument();
            //Open one xml
            try
            {
                xml.Load(path);
                //Selection matching XPath The first expression XmlNode
                XmlNode Configure = xml.SelectSingleNode("Configure/YAxis/YAxi");
                //Read node data
                if (Configure !=null)
                {
                    string portName = Configure.SelectSingleNode("title").InnerText;
                    MessageBox.Show("The first node name is:" + portName);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
         }

Then add a button to call this method in the click event of the button.

 private void simpleButton1_Click(object sender, EventArgs e)
        {
            ConfigAccessUtils.readConfig();
        }

Effect

Write to configuration file

Similarly, new methods are added to the toolkit

public static void writeConfig()
        {
            //Get the path to the executable file
            string context = System.Windows.Forms.Application.StartupPath;
            string path = String.Concat(context, @"\config\YAxisSet.xml");
            XmlDocument xml = new XmlDocument();
            //Open one xml
            try
            {
                xml.Load(path);
                //Selection matching XPath The first expression XmlNode
                XmlNode Configure = xml.SelectSingleNode("Configure/YAxis/YAxi");
                //Read node data
                if (Configure != null)
                {
                    string portName = Configure.SelectSingleNode("title").InnerText;
                    MessageBox.Show("Before writing, the node name is:" + portName);
                }
                //Write node data
                Configure.SelectSingleNode("title").InnerText = "Overbearing";
                string afterWrite = Configure.SelectSingleNode("title").InnerText;
                xml.Save(path);
                MessageBox.Show("After writing, the node name is:" + afterWrite);
               
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }

Effect

Before writing

After writing

Note:

To modify the content of the configuration file, the real modification is the configuration file in the debug directory under bin.