How to create a field in SharePoint using client object model

In this article we want to show how to create a field in list using client object model

We are having a requirement to create a new fields in SharePoint site which is in different server, so we created a console application and implemented the code using client object model to create a new fields in the list as shown below.

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This is a sample example to create new fields.

using Microsoft.SharePoint.Client;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Text;

using System.Threading.Tasks;

namespace Newfield

{

    class Program

    {

        static void Main(string[] args)

        {

            ClientContext context = new ClientContext( "http://dotnetsharepoint.com/sites/sharepoint/");

            context.Credentials = new NetworkCredential("username", "password", "domain");

            context.Load(context.Web);

            List c_list = context.Web.Lists.GetByTitle("YourListName");

             Field newfields = c_list.Fields.AddFieldAsXml("<Field

DisplayName = 'YourFieldName' Type = 'Text' />", true, AddFieldOptions .DefaultValue);

            FieldText textfield = context.CastTo<FieldText>(newfields);

            textfield.Update();

               context.ExecuteQuery();

        }

    }

}

SharePoint Online Real Time Training Contact: JLAKSHMITULASI@GMAIL.COM

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update created by and modified by fields in sharepoint using client object model

In this article we can able to see, how to update the created by and modified user name using client object model.

We migrated a site from lotus notes to SharePoint for those items user name is coming as current system login user name, that to SharePoint site is in different environment, we are unable to do using PowerShell, so we done a sample client side object model to update the created by and modified by user names.

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Copy value from one filed to another field using PowerShell - See more at: http://www.dotnetsharepoint.com/2015/07/copy-value-from-one-filed-to-another.html#sthash.QPHZ7Tjz.dpuf

 Copy value from one filed to another field using PowerShell 

Date formula in SharePoint calculated value

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using Microsoft.SharePoint;

using Microsoft.SharePoint.Client;

using SP = Microsoft.SharePoint.Client;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace updatecreatedby

{

    class Program

    {

        static void Main(string[] args)

        {

            ClientContext clicon = new ClientContext("http://dotnetsharepoint.com/sites/SharePoint");

            SP.List list =clicon.Web.Lists.GetByTitle("yourlistname");

            clicon.Load(list);

            SP.ListItem item = list.GetItemById(22); //here item ID updating a single item

            clicon .Load(item);

            item["Author"] = GetUsers(clicon, "domainname\\createdname ");

            item.Update();

            item["Editor"] = GetUsers(clicon, " domainname\\modifiedname ");

            item.Update();

            clicon.ExecuteQuery();

       

        }

        private static SP.FieldUserValue GetUsers(ClientContext clientContext, string UserName)

        {

            SP.FieldUserValue userValue = new SP.FieldUserValue();

            SP.User updateUser = clientContext.Web.EnsureUser(UserName);

            clientContext.Load(updateUser);

            clientContext.ExecuteQuery();

            userValue.LookupId = updateUser.Id;

            return userValue;

        }

    }

}

SharePoint Online Real Time Training Contact: JLAKSHMITULASI@GMAIL.COM

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