sharepoint 下Infopath 表单启动工作流

using Microsoft.Office.InfoPath;
using System;
using System.Xml;
using System.Xml.XPath;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Workflow;
using System.Web;

namespace 表单109
{
    public partial class FormCode
    {
        // 启用浏览器功能的表单不支持成员变量。
        // 请使用代码从 FormState 词典
        // 写入和读取这些值，如下所示:
        //
        // private object _memberVariable
        // {
        //     get
        //     {
        //         return FormState["_memberVariable"];
        //     }
        //     set
        //     {
        //         FormState["_memberVariable"] = value;
        //     }
        // }

        // 注意: 以下是 Microsoft InfoPath 所需的过程。
        // 可以使用 Microsoft InfoPath 对其进行修改。
        public void InternalStartup()
        {
            ((ButtonEvent)EventManager.ControlEvents["btnsubmit"]).Clicked += new ClickedEventHandler(btnsubmit_Clicked);
            ((ButtonEvent)EventManager.ControlEvents["btnsave"]).Clicked += new ClickedEventHandler(btnsave_Clicked);
            ((ButtonEvent)EventManager.ControlEvents["btnclose"]).Clicked += new ClickedEventHandler(btnclose_Clicked);


            EventManager.FormEvents.Loading += new LoadingEventHandler(FormEvents_Loading);
        }
    
        public void btnsubmit_Clicked(object sender, ClickedEventArgs e)
        {
            // 在此处编写代码。
            // 在此处编写代码。
            //    XPathNavigator field2 = this.MainDataSource.CreateNavigator().SelectSingleNode("/my:myFields/my:标题", NamespaceManager);

            FileSubmitConnection osssubmit = (FileSubmitConnection)this.DataConnections["OSSSubmit"];

            string tempfilename = DateTime.Now.ToString("yyyyMMddHHmmss");
            //设置提交表单的文件名
            osssubmit.Filename.SetStringValue(tempfilename + ".xml");
            //执行提交
            osssubmit.Execute();

            try
            {


                using (SPSite mysite = new SPSite(osssubmit.FolderUrl))
                {

                    string workflowName = "TestInfoPath";
                    string fileurl = osssubmit.FolderUrl + "/" + tempfilename + ".xml";
                    if (osssubmit.FolderUrl.EndsWith("/"))
                    {
                        fileurl = osssubmit.FolderUrl + tempfilename + ".xml";
                    }
                    SPList mylist = mysite.RootWeb.GetList(osssubmit.FolderUrl);

                    SPListItem mylistitem = mysite.RootWeb.GetListItem(fileurl);

                    SPWorkflowAssociation mywfass = mylist.WorkflowAssociations.GetAssociationByName(workflowName, System.Globalization.CultureInfo.CurrentCulture);
                    string EventData = mywfass.AssociationData;
                    mysite.AllowUnsafeUpdates = true;
                    mysite.RootWeb.AllowUnsafeUpdates = true;
                    //根据设定的信息，启动工作流
                    mysite.WorkflowManager.StartWorkflow(mylistitem, mywfass, EventData);
                    // SPUtility.Redirect(osssubmit.FolderUrl, SPRedirectFlags.DoNotEndResponse, HttpContext.Current);
                }
            }
            catch (Exception ex)
            {

            }
        }

        public void btnsave_Clicked(object sender, ClickedEventArgs e)
        {
            // 在此处编写代码。

            FileSubmitConnection osssubmit = (FileSubmitConnection)this.DataConnections["OSSSubmit"];

            string tempfilename = DateTime.Now.ToString("yyyyMMddHHmmss");
            //设置提交表单的文件名
            osssubmit.Filename.SetStringValue(tempfilename + ".xml");
            //执行提交
            osssubmit.Execute();
            
        }

        public void btnclose_Clicked(object sender, ClickedEventArgs e)
        {
            // 在此处编写代码。
            
        }
        public void loadinfo()
        {
            FileSubmitConnection osssubmit = (FileSubmitConnection)this.DataConnections["OSSSubmit"];

            using (SPSite mysite = new SPSite(osssubmit.FolderUrl))
            {

                XPathNavigator field2 = this.MainDataSource.CreateNavigator().SelectSingleNode("/my:myFields/my:填写人", NamespaceManager);
                string username = mysite.RootWeb.CurrentUser.LoginName;
                field2.SetValue(username);
            }
        }
        public void FormEvents_Loading(object sender, LoadingEventArgs e)
        {
            // 在此处编写代码。
            loadinfo();
        }
    }
}