Sharepoint 复制备份系列使用编程方式复制列表1(Copy a SharePoint List Programmatically)

Sharepoint copy list

Sharepoint 复制备份系列--使用编程方式复制列表(Copy a SharePoint List Programmatically)

在sharepoint的开发维护中，经常会用到备份的功能，有时会复制列表，网站，或者其他的对象，这里简单的介绍一下。

1. 1.   MOSS复制一个list的结构

转自jianyi的博客

SPList EnsureArchiveList( SPList templateList)
        {
            SPWeb web = templateList.ParentWeb;
            SPList list = templateList;

            SPList archiveList = null;

            string archiveListTitle = list.Title + "(Archive)";

            try
            {
                archiveList = web.Lists[archiveListTitle];
            }
            catch { }

            if (archiveList == null)
            {
                web.AllowUnsafeUpdates = true;

                string url = "Archive/" + list.RootFolder.Url;
            
                Guid listId = web.Lists.Add(list.Title + "(Archive)", "List for archive.",  url , list.TemplateFeatureId.ToString(), (int)list.BaseTemplate, "");

                archiveList = web.Lists[listId];

                foreach (SPField f in list.Fields)
                {
                    if (archiveList.Fields.ContainsField(f.InternalName) == false)
                    {
                        archiveList.Fields.Add(f);
                    }
                }
            }

            return archiveList;       
        }

2.sharepoint 复制列表，但有些不足的地方，比如说：

列表A是源列表，列表B是目标列表，当修改A的只读field，B复制过去的时候没办法实现完全复制，这也许是我代码的不足。比如标题被改为项目名称，但复制过去的还是标题。

注意：复制过去之后，要记得更新视图

  //更新视图

                            SPView oView = destList.Views["所有项目"];

                            SPViewFieldCollection collViewFields = oView.ViewFields;

                            collViewFields.Add(field.InternalName);

 

                            oView.Update();

 

以下为测试代码：不是很完整

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Microsoft.SharePoint;

 

namespace SPCopyListProject

{

    class Program

    {

        static void Main(string[] args)

        {

 

            // Instantiate web instances

            SPSite sourceSite = new SPSite(@"http://mossdev:13579/itws");

            //  SPWeb sourceWeb = sourceSite.RootWeb;

            SPWeb sourceWeb = sourceSite.OpenWeb();

 

            SPSite destSite = new SPSite(@"http://mossdev:13579/");

            // SPWeb destWeb = destSite.RootWeb;

            SPWeb destWeb = destSite.OpenWeb();

 

            // Get a reference to the source list

 

            //SPListCollection collSiteLists = sourceWeb.Lists;

            //foreach (SPList oList in collSiteLists)

            //{

            //    Console.WriteLine(oList.ID.ToString());

            //    Console.WriteLine(oList.Title.ToString());

            //    Console.WriteLine(oList.ParentWebUrl);

            //}

 

            SPList sourceList = sourceWeb.GetList("/itws/Lists/Projects");

            //Console.WriteLine(sourceList);

            //Console.ReadLine();

            //return;

          

            //  SPListCollection listsCollects = sourceWeb.Lists;

 

            // SPList sourceList = listsCollects["Announcements"];

            // if the list exists on the destination site, delete it

            try

            {

                SPList temp = destWeb.Lists[sourceList.Title];

                destWeb.Lists.Delete(temp.ID);

            }

            catch { }

 

            // create new list on the destination web with same properties

            //SPlistTemplateType must be customList

            Guid newListID = destWeb.Lists.Add(sourceList.Title, sourceList.Description,  SPListTemplateType.GenericList);

            SPList destList = destWeb.Lists[newListID];

 

            // copy items

            foreach (SPListItem item in sourceList.Items)

            {

                SPListItem newDestItem = destList.Items.Add();

                foreach (SPField field in sourceList.Fields)

                {

 

                    //Console.WriteLine(field.InternalName);

                    //Console.WriteLine(field.Title);

 

                    if (field.InternalName == "Author")

                    {

                      

                        newDestItem.Fields.CreateNewField(field.Type.ToString(),"OldAuthor");

 

                        newDestItem.Update();

 

                    }

                    //Console.WriteLine(field.InternalName);

                    //Console.WriteLine(field.Title);

 

 

                    //标题被改为项目名称

                    if (!field.ReadOnlyField && field.InternalName != "Attachments")

                    {

                        if (!newDestItem.Fields.ContainsField(field.InternalName))

                        {

                          

                            newDestItem.Fields.Add(field);

                         

                            //更新视图

                            SPView oView = destList.Views["所有项目"];

                            SPViewFieldCollection collViewFields = oView.ViewFields;

                            collViewFields.Add(field.InternalName);

 

                            oView.Update();

 

                           

                        }

 

                        newDestItem[field.InternalName] = item[field.InternalName];

                      

                    }

 

                    // 删除目标项上已有的附件 

 

                    for (int i = newDestItem.Attachments.Count; i > 0; i--)

                    {

 

                        newDestItem.Attachments.Delete(newDestItem.Attachments[i - 1]);

 

                    }

 

 

 

                    // 复制所有的附件 

 

                    foreach (string fileName in item.Attachments)

                    {

 

                        SPFile file = item.ParentList.ParentWeb.GetFile(item.Attachments.UrlPrefix + fileName);

 

                        byte[] imageData = file.OpenBinary();

 

                        newDestItem.Attachments.Add(fileName, imageData);

 

                    }

 

 

 

                }

        

 

 

 

 

                newDestItem.Update();

            }

 

            // set quicklaunch settings

            destList.OnQuickLaunch = sourceList.OnQuickLaunch;

            destList.Update();

            //SPViewCollection spviewcet = sourceList.DefaultView;

            //foreach (SPView mySpview in spviewcet)

            //{

            //    Console.WriteLine(mySpview.Title);

            //}

            //Console.ReadLine();

 

             

 

                    

 

        }

    }

}

参考：

http://geekswithblogs.net/AnneBougie/archive/2009/01/23/copy-a-sharepoint-list.aspx