使用客户端对象模型更新 SharePoint 中的字段值

发布于 2024-11-27 20:56:32 字数 1491 浏览 1 评论 0原文

因此,我尝试创建一种方法,该方法本质上用于更改 SharePoint 中字段的值。

这就是我到目前为止所拥有的...

static String fieldName1 = "Title";
static String fieldName2 = "Keywords";
static String title = "A Beautiful Sunset";
static String keywords1 = "test1";
static String keywords2 = "test2";
static String keywords3 = "test3";

static NetworkCredential credentials = new NetworkCredential(username, password, domain);
static ClientContext clientContext = new ClientContext(URL);
static Web site = clientContext.Web;
static List list = site.Lists.GetByTitle(listName);
static FileCreationInformation newFile = new FileCreationInformation();

private static void updateFields()
{
    clientContext.Load(list);
    FieldCollection fields = list.Fields;
    clientContext.Load(fields);
    clientContext.Load(list.RootFolder);

    ListItemCollection listItems = list.GetItems(CamlQuery.CreateAllItemsQuery());
    clientContext.Load(listItems);
    clientContext.ExecuteQuery();

    foreach (var listItem in listItems)
    {
        Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
        clientContext.Load(listItem.File);
        clientContext.ExecuteQuery();
        Console.WriteLine("listItem File Name: {0}", listItem.File.Name);

        if (listItem.File.Name.Contains("Sunset"))
        {
            ////????????
        }
        listItem.Update();
    }
    clientContext.ExectueQuery();
}

我知道如何访问该字段,但我不确定如何访问该字段中的实际值并修改它。有人有使用客户端对象模型的经验吗?感谢您提供的任何帮助!

So I am trying to create a method that is essentially used to change the value of a field in SharePoint.

This is what I have so far...

static String fieldName1 = "Title";
static String fieldName2 = "Keywords";
static String title = "A Beautiful Sunset";
static String keywords1 = "test1";
static String keywords2 = "test2";
static String keywords3 = "test3";

static NetworkCredential credentials = new NetworkCredential(username, password, domain);
static ClientContext clientContext = new ClientContext(URL);
static Web site = clientContext.Web;
static List list = site.Lists.GetByTitle(listName);
static FileCreationInformation newFile = new FileCreationInformation();

private static void updateFields()
{
    clientContext.Load(list);
    FieldCollection fields = list.Fields;
    clientContext.Load(fields);
    clientContext.Load(list.RootFolder);

    ListItemCollection listItems = list.GetItems(CamlQuery.CreateAllItemsQuery());
    clientContext.Load(listItems);
    clientContext.ExecuteQuery();

    foreach (var listItem in listItems)
    {
        Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
        clientContext.Load(listItem.File);
        clientContext.ExecuteQuery();
        Console.WriteLine("listItem File Name: {0}", listItem.File.Name);

        if (listItem.File.Name.Contains("Sunset"))
        {
            ////????????
        }
        listItem.Update();
    }
    clientContext.ExectueQuery();
}

I know how to get to the field, but I am not sure how to access the actual value within the field and modify it. Does anyone have any experience with this using the client-object model? Thank you for any help that's offered!

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评论(4

不即不离 2024-12-04 20:56:32

使用客户端对象模型更新字段非常简单:

ClientContext ctx = new ClientContext("http://yoursite");
List list = ctx.Web.Lists.GetByTitle("ListName");
ListItemCollection items = list.GetItems(CamlQuery.CreateAllItemsQuery());
ctx.Load(items); // loading all the fields
ctx.ExecuteQuery();

foreach(var item in items)
{
    // important thing is, that here you must have the right type
    // i.e. item["Modified"] is DateTime
    item["fieldName"] = newValue;

    // do whatever changes you want

    item.Update(); // important, rembeber changes
}
ctx.ExecuteQuery(); // important, commit changes to the server

使用 DocumentLibrary 则完全不同 - 您可以获得相同的 ListItem 对象,但要访问关联的文件,您必须使用 item.File 属性。因此 ListItem 本身将包含字段值,listItem.File 将包含文件,例如图像。
并且不要忘记 - 要访问该文件,您必须 Load() 它,然后 ExecuteQuery()

Updating of a field with Client Object Model is pretty straight forward:

ClientContext ctx = new ClientContext("http://yoursite");
List list = ctx.Web.Lists.GetByTitle("ListName");
ListItemCollection items = list.GetItems(CamlQuery.CreateAllItemsQuery());
ctx.Load(items); // loading all the fields
ctx.ExecuteQuery();

foreach(var item in items)
{
    // important thing is, that here you must have the right type
    // i.e. item["Modified"] is DateTime
    item["fieldName"] = newValue;

    // do whatever changes you want

    item.Update(); // important, rembeber changes
}
ctx.ExecuteQuery(); // important, commit changes to the server

With DocumentLibrary it is quite defferent - you get those same ListItem objects, but to access the associated file you must use item.File property. So ListItem itself will contain field values, listItem.File will contain file, say image.
And don't forget - to access that file you must Load() it and then ExecuteQuery().

寂寞美少年 2024-12-04 20:56:32

请记住,每个字段都有一个内部名称。当您使用索引器查询字段值时,您应该为其指定内部名称,而不是我们在 SharePoint Online 中看到的名称。

例如,您添加一个名为“电话”的列,您应该像这样查询该值:

//query the internal name of the "Phone" field
Field field = list.Fields.GetByInternalNameOrTitle("Phone");
context.Load(field);
context.ExecuteQuery();

//load items
var items = list.GetItems(new CamlQuery());
context.Load(items);
context.ExecuteQuery();

foreach (var item in items)
{
   //here we use the internal name
   Console.WriteLine("\t field, phone:{0}", item[field.InternalName]);
}

Just remember that every field has an internal name. When you query the field value use indexer, you should give it the internal name, not the one we see in the SharePoint Online.

For example, you add a column named Phone, You should query the value like this:

//query the internal name of the "Phone" field
Field field = list.Fields.GetByInternalNameOrTitle("Phone");
context.Load(field);
context.ExecuteQuery();

//load items
var items = list.GetItems(new CamlQuery());
context.Load(items);
context.ExecuteQuery();

foreach (var item in items)
{
   //here we use the internal name
   Console.WriteLine("\t field, phone:{0}", item[field.InternalName]);
}
呢古 2024-12-04 20:56:32

FieldCollection 描述列表项的架构。您需要加载实际列表项才能访问它们的值!

查看 MSDN 上的详细演练,了解有关 SharePoint 和客户端对象模型的更多背景信息:http://msdn.microsoft.com/en-us/library/ee857094.aspx#SP2010ClientOM_The_Managed_Client_Object_Model

因此,在这种情况下,上述 MSDN 页面中的以下示例代码说明了这一点

using System;
using Microsoft.SharePoint.Client;

class Program
{
    static void Main()
    {
        ClientContext clientContext = new ClientContext("http://intranet.contoso.com");
        List list = clientContext.Web.Lists.GetByTitle("Announcements");
        CamlQuery camlQuery = new CamlQuery();
        camlQuery.ViewXml = "<View/>";
        ListItemCollection listItems = list.GetItems(camlQuery);
        clientContext.Load(list);clientContext.Load(listItems);
        clientContext.ExecuteQuery();
        foreach (ListItem listItem in listItems)
            Console.WriteLine("Id: {0} Title: {1}", listItem.Id, oListItem["Title"]);
    }
}

:列表项字段值的检索方式如下:

string itemTitle = oListItem["Title"];

它使用 .NET 索引器语法。

The FieldCollection describes the schema of the list items. You need to load actual list items to access their values!

Check out this detailed walkthrough on MSDN for more background on SharePoint and the Client Object Model: http://msdn.microsoft.com/en-us/library/ee857094.aspx#SP2010ClientOM_The_Managed_Client_Object_Model

So in this case the following sample code from the above MSDN page illustrates it:

using System;
using Microsoft.SharePoint.Client;

class Program
{
    static void Main()
    {
        ClientContext clientContext = new ClientContext("http://intranet.contoso.com");
        List list = clientContext.Web.Lists.GetByTitle("Announcements");
        CamlQuery camlQuery = new CamlQuery();
        camlQuery.ViewXml = "<View/>";
        ListItemCollection listItems = list.GetItems(camlQuery);
        clientContext.Load(list);clientContext.Load(listItems);
        clientContext.ExecuteQuery();
        foreach (ListItem listItem in listItems)
            Console.WriteLine("Id: {0} Title: {1}", listItem.Id, oListItem["Title"]);
    }
}

In particular the value of a list item filed is retrieved as follows:

string itemTitle = oListItem["Title"];

It uses .NET indexer syntax.

铁轨上的流浪者 2024-12-04 20:56:32

希望这可以帮助某人走出困境。感谢大家的意见!

private static void updateFields()
        {
            //Loads the site list
            clientContext.Load(list);
            //Creates a ListItemCollection object from list
            ListItemCollection listItems = list.GetItems(CamlQuery.CreateAllItemsQuery());
            //Loads the listItems
            clientContext.Load(listItems);
            //Executes the previous queries on the server
            clientContext.ExecuteQuery();

            //For each listItem...
            foreach (var listItem in listItems)
            {
                //Writes out the item ID and Title
                Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
                //Loads the files from the listItem
                clientContext.Load(listItem.File);
                //Executes the previous query
                clientContext.ExecuteQuery();
                //Writes out the listItem File Name
                Console.WriteLine("listItem File Name: {0}", listItem.File.Name);

                //Looks for the most recently uploaded file, if found...
                if (listItem.File.Name.Contains("Sunset"))
                {
                    //Changes the Title field value
                    listItem["Title"] = title;
                    //Changes the Keywords field value
                    listItem["Keywords"] = keywords1 + keywords2 + keywords3;
                    //Writes out the item ID, Title, and Keywords
                    Console.WriteLine("Id: {0} Title: {1} Keywords: {2}", listItem.Id, listItem["Title"], listItem["Keywords"]);
                }
                //Remember changes...
                listItem.Update();
            }
            //Executes the previous query and ensures changes are committed to the server
            clientContext.ExecuteQuery();
        }

Hope this helps someone out down the road. Thanks everyone for your input!

private static void updateFields()
        {
            //Loads the site list
            clientContext.Load(list);
            //Creates a ListItemCollection object from list
            ListItemCollection listItems = list.GetItems(CamlQuery.CreateAllItemsQuery());
            //Loads the listItems
            clientContext.Load(listItems);
            //Executes the previous queries on the server
            clientContext.ExecuteQuery();

            //For each listItem...
            foreach (var listItem in listItems)
            {
                //Writes out the item ID and Title
                Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
                //Loads the files from the listItem
                clientContext.Load(listItem.File);
                //Executes the previous query
                clientContext.ExecuteQuery();
                //Writes out the listItem File Name
                Console.WriteLine("listItem File Name: {0}", listItem.File.Name);

                //Looks for the most recently uploaded file, if found...
                if (listItem.File.Name.Contains("Sunset"))
                {
                    //Changes the Title field value
                    listItem["Title"] = title;
                    //Changes the Keywords field value
                    listItem["Keywords"] = keywords1 + keywords2 + keywords3;
                    //Writes out the item ID, Title, and Keywords
                    Console.WriteLine("Id: {0} Title: {1} Keywords: {2}", listItem.Id, listItem["Title"], listItem["Keywords"]);
                }
                //Remember changes...
                listItem.Update();
            }
            //Executes the previous query and ensures changes are committed to the server
            clientContext.ExecuteQuery();
        }
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