保存程序配置到xml文件里

准备:

新建一个文本文档(.txt)修改扩展名为.xml,用记事本打开写入变量,格式如下:

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
  <Settings>
    <text></text>
    <R>255</R>
    <G>255</G>
    <B>255</B>
  </Settings>
</NewDataSet> 

定义:

DataSet ds;     //来存放数据
string path;    //XML文件路径

读取方法: 

        private void Form1_Activated(object sender, EventArgs e)
        {
            path = Application.StartupPath+"//Settings.xml";
            ds = new DataSet();
            ds.ReadXml(path);                       //ds以表格形式读取xml的数据
            textBox1.Text = ds.Tables[0].Rows[0][0].ToString();
            textBox1.BackColor =Color.FromArgb(Convert.ToInt16(ds.Tables[0].Rows[0][1])
                               ,Convert.ToInt16(ds.Tables[0].Rows[0][2])
                               , Convert.ToInt16(ds.Tables[0].Rows[0][3]));
            Activated -= new EventHandler(Form1_Activated);
        }

保存方法:
 
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            ds.Tables[0].Rows[0][0] = textBox1.Text;
            ds.Tables[0].Rows[0][1] = textBox1.BackColor.R;
            ds.Tables[0].Rows[0][2] = textBox1.BackColor.G;
            ds.Tables[0].Rows[0][3] = textBox1.BackColor.B;
            ds.WriteXml(path);
        } 

注意:dataset可读入多个表,在

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
  <Settings>
    <text></text>
    <R>255</R>
    <G>255</G>
    <B>255</B>
  </Settings>
  <Settings2>
    <text></text>
    <R>255</R>
    <G>255</G>
    <B>255</B>
  </Settings2>
  <Settings2>
    <text></text>
    <R>255</R>
    <G>255</G>
    <B>255</B>
  </Settings2>
</NewDataSet> 

 

中Settings与Settings1是dataset中的两个Table名,Settings1表有两行,text,R,G,B,为列名.