using Microsoft.Office.InfoPath;

using System;

using System.Xml;

using System.Xml.XPath;

namespace copytable

{

    public partial class FormCode

    {

        // 注意: 以下是 Microsoft Office InfoPath 所需的过程。

        // 可以使用 Microsoft Office InfoPath 对其进行修改。

        public void InternalStartup()

        {

            EventManager.XmlEvents["/my:myFields/my:group1/my:group2"].Changed += new XmlChangedEventHandler(group2_Changed);

        }

        public void group2_Changed(object sender, XmlEventArgs e)

        {

            DelRange("/my:myFields/my:group3", "my:group4");

            string strExpression = @"/my:myFields/my:group1/my:group2[my:check1='Y']";

            string toNav = "/my:myFields/my:group3/my:group4[last()]";

            string[] fromNodes ={ "my:field2", "my:field3" };

            string[] toNodes ={ "my:field4", "my:field5" };

            copyTable(strExpression, toNav, fromNodes, toNodes);

            AddBlank("/my:myFields/my:group3/my:group4[last()]");

        }

        public void copyTable(string strExpression, string toNav, string[] fromNodes, string[] toNodes)

        {

            XPathNavigator xn = MainDataSource.CreateNavigator();

            XPathNodeIterator itor = xn.Select(strExpression, NamespaceManager);

            XPathNavigator to = this.MainDataSource.CreateNavigator().SelectSingleNode(toNav, this.NamespaceManager);

            XPathNavigator clone = null;

            while (itor.MoveNext())

            {

                {

                    clone = to.Clone();

                    for (int i = 0; i < fromNodes.Length;i++ )

                    {

                        to.SelectSingleNode(toNodes[i], NamespaceManager).SetValue(itor.Current.SelectSingleNode(fromNodes[i], NamespaceManager).Value);

                    }

                    to.InsertBefore(clone);

                }

            }

        }

        public void DelRange(string body, string node)

        {

            try

            {

                XPathNavigator parent = this.MainDataSource.CreateNavigator().SelectSingleNode(body, this.NamespaceManager);

                if (parent != null)

                {

                    XPathNodeIterator rowitor = parent.Select(node, this.NamespaceManager);

                    XPathNavigator xn = this.MainDataSource.CreateNavigator();

                    XPathNavigator n1 = xn.SelectSingleNode(body + "/" + node + "[1]", this.NamespaceManager);

                    XPathNavigator n2 = n1.SelectSingleNode(body + "/" + node + "[" + (rowitor.Count - 1) + "]", this.NamespaceManager);

                    xn.MoveTo(n1);

                    if (rowitor.Count > 1)

                    {

                        xn.DeleteRange(n2);

                    }

                }

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }

        public void DeleteAll(string body,string node)

        {

            XPathNavigator parent = this.MainDataSource.CreateNavigator().SelectSingleNode(body, this.NamespaceManager);

            if (parent != null)

            {

                XPathNodeIterator rowitor = parent.Select(node, this.NamespaceManager);

                if (rowitor.Count > 0)

                {

                    for (int i = 0; i < Convert.ToInt32(rowitor.Count)-1; i++)

                    {

                        rowitor.Current.DeleteSelf();

                        rowitor.MoveNext();

                    }

                }

            }

 

        }

        public void AddBlank(string node)

        {

            try

            {

                XPathNavigator group = this.MainDataSource.CreateNavigator().SelectSingleNode(node, this.NamespaceManager);

                group.SelectSingleNode("my:field4", NamespaceManager).SetValue("");

                group.SelectSingleNode("my:field5", NamespaceManager).SetValue("");

                group.SelectSingleNode("my:field6", NamespaceManager).SetValue("");

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }

    }

}