读写XML文件

来源：互联网发布：ppt数据展示模板编辑：程序博客网时间：2024/05/17 22:40

        #region 读写xml配置文件        public void ReadPrintConfig()        {            string sFileName = Application.StartupPath + @"\" + this.Text + ".xml";            if (!File.Exists(sFileName)) return;            //读取打印机参数            XmlDocument xmldoc = new XmlDocument();            xmldoc.Load(sFileName);            //            XmlNode PrinterParam = xmldoc.SelectSingleNode("PrintConfig/PrinterParam");            if (PrinterParam != null)            {                XmlNode xesub1 = PrinterParam.SelectSingleNode("PrinterName");                if (xesub1 != null) this.cbxSelectPrinter.Text = xesub1.InnerText;                XmlNode xesub2 = PrinterParam.SelectSingleNode("PaperSize");                if (xesub2 != null)                {                    XmlElement xe = (XmlElement)xesub2;                    this.cbxPaperKind.Text = xe.GetAttribute("Kind");                    this.nudPaperWidth.Value = Math.Max(Convert.ToInt32(xe.GetAttribute("Width")), 50);                    this.nudPaperHeight.Value = Math.Max(Convert.ToInt32(xe.GetAttribute("Height")), 50);                }            }            //读取打印项目位置            XmlNode PrintItemList = xmldoc.SelectSingleNode("PrintConfig/PrintItemList");            if (PrintItemList == null) return;            XmlNodeList xnl = PrintItemList.ChildNodes;            foreach (XmlNode xnf in xnl)            {                XmlElement xe = (XmlElement)xnf;                string sName = xe.Name;                int x = Convert.ToInt32(xe.GetAttribute("X"));                int y = Convert.ToInt32(xe.GetAttribute("Y"));                //                //MessageBox.Show(sName);                Control[] ctrlList = this.Controls.Find(sName, true);                if (ctrlList.Length > 0)                {                    ctrlList[0].Left = x;                    ctrlList[0].Top = y;                }            }        }        private void WritePrintConfig()        {            XmlDocument xmldoc = new XmlDocument();            //xml声明行            var xmlnode = xmldoc.CreateNode(XmlNodeType.XmlDeclaration, "", "");            xmldoc.AppendChild(xmlnode);            //打印配置            XmlNode PrintConfig = xmldoc.CreateNode(XmlNodeType.Element, "PrintConfig", null);            xmldoc.AppendChild(PrintConfig);            //打印机参数            XmlNode PrinterParam = xmldoc.CreateNode(XmlNodeType.Element, "PrinterParam", null);            PrintConfig.AppendChild(PrinterParam);            XmlElement xesub1 = xmldoc.CreateElement("PrinterName");            xesub1.InnerText = this.cbxSelectPrinter.Text;            PrinterParam.AppendChild(xesub1);            XmlElement xesub2 = xmldoc.CreateElement("PaperSize");            xesub2.SetAttribute("Kind", this.cbxPaperKind.Text);            xesub2.SetAttribute("Width", this.nudPaperWidth.Value.ToString());            xesub2.SetAttribute("Height", this.nudPaperHeight.Value.ToString());            PrinterParam.AppendChild(xesub2);            //打印项目列表            XmlNode PrintItemList = xmldoc.CreateNode(XmlNodeType.Element, "PrintItemList", null);            PrintConfig.AppendChild(PrintItemList);            foreach (Control ctrl in this.Controls)            {                //MessageBox.Show(ctrl.Name);                if (ctrl is Label)                {                    XmlElement xe = xmldoc.CreateElement(ctrl.Name);                    xe.SetAttribute("X", ctrl.Left.ToString());                    xe.SetAttribute("Y", ctrl.Top.ToString());                    PrintItemList.AppendChild(xe);                }            }            //保存            string sFileName = Application.StartupPath + @"\" + this.Text + ".xml";            if (File.Exists(sFileName)) File.Delete(sFileName);            xmldoc.Save(sFileName);            MessageBox.Show("打印配置已成功保存到文件：\n\n" + sFileName);        }        #endregion

生成的XML文件格式如下：

<?xml version="1.0"?><PrintConfig>  <PrinterParam>    <PrinterName>Microsoft XPS Document Writer</PrinterName>    <PaperSize Kind="自定义" Width="241" Height="152" />  </PrinterParam>  <PrintItemList>    <lbl备注 X="538" Y="441" />    <lbl税务机关 X="554" Y="81" />    <lbl纳税人识别号 X="151" Y="117" />    <lbl填票人 X="156" Y="468" />    <lbl金额合计 X="732" Y="333" />    <lbl金额合计大写 X="151" Y="387" />    <lbl税种 X="151" Y="230" />    <lbl实缴金额 X="731" Y="230" />    <lbl品目名称 X="330" Y="231" />    <lbl地址 X="151" Y="165" />    <lbl填开日期 X="323" Y="81" />    <lbl纳税人名称 X="395" Y="114" />  </PrintItemList></PrintConfig>

确实很方便，比使用INI文件灵活多了！

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