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Add Field to List in SharePoint 2010 Programmatically Using VS 2010 Via COM

On September 19, 2012 Articles | SharePoint
Today, in this article let’s play around with one of the interesting and most useful concepts in SharePoint 2010.
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Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in SharePoint 2010.

Question: What is adding field to list via COM?

In simple terms "To enables to create new field for list using client object model".

Step 1: Open Visual Studio 2010 and create an "ASP.NET Web Forms Application", as in:

 

open-asp.net-web-application.jpg
 

Now two references need to be added to the application, they are:

  • Microsoft.SharePoint.Client

  • Microsoft.SharePoint.Client.Runtime

 Step 2: The complete code of webform1.aspx looks like this:

 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AddFieldtoListCOMApp._Default" %>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

    <center>

        <div>

            <table style="text-align: center">

                <tr>

                    <td colspan="2">

                        <asp:Label ID="Label1" runat="server" Text="Client Object Model List Field Creation - SharePoint 2010 Programatically"

                            Font-Bold="true" Font-Size="Large" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>

                    </td>

                </tr>

                <tr>

                    <td>

                        <asp:Label ID="Label4" runat="server" Text="Please Enter List Name" Font-Size="Large"

                            Font-Names="Verdana" Font-Italic="true"></asp:Label>

                    </td>

                    <td>

                        <asp:TextBox ID="TextBox4" runat="server" Width="117px"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td>

                        <asp:Label ID="Label2" runat="server" Text="Please Enter Field Name" Font-Size="Large"

                            Font-Names="Verdana" Font-Italic="true"></asp:Label>

                    </td>

                    <td>

                        <asp:TextBox ID="TextBox1" runat="server" Width="117px"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td>

                        <asp:Label ID="Label3" runat="server" Text="Please Enter Field Type" Font-Size="Large"

                            Font-Names="Verdana" Font-Italic="true"></asp:Label>

                    </td>

                    <td>

                        <asp:TextBox ID="TextBox2" runat="server" Width="117px"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td colspan="2">

                        <br />

                        <asp:Button ID="Button1" runat="server" Text="Create Field" Font-Names="Verdana"

                            Width="282px" BackColor="Orange" Font-Bold="True" OnClick="Button1_Click" />

                    </td>

                </tr>

                <tr>

                    <td colspan="2">

                        <br />

                        <asp:Label ID="Label5" runat="server" Font-Bold="true" Font-Names="Verdana"></asp:Label>

                    </td>

                </tr>

            </table>

        </div>

    </center>

    </form>

</body>

</html>

 

Step 3: The complete code of webform1.aspx.cs looks like this:

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Microsoft.SharePoint.Client;

namespace AddFieldtoListCOMApp

{

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            TextBox4.Focus();

        }

        protected void Button1_Click(object sender, EventArgs e)

        {

            if (string.IsNullOrEmpty(TextBox1.Text) || string.IsNullOrEmpty(TextBox2.Text) || string.IsNullOrEmpty(TextBox4.Text))

            {

                Label5.Text = "Please Enter Some Values";

                Label5.ForeColor = System.Drawing.Color.Red;

            }

            else

            {

                ClientContext objContext = new ClientContext("http://win-kv3bo1rqqf7:25339/");

                Web objWeb = objContext.Web;

                List objList = objWeb.Lists.GetByTitle(TextBox4.Text);

                Field objField = objList.Fields.AddFieldAsXml("<Field DisplayName='" + TextBox1.Text + "' Type='" + TextBox2.Text + "' />", true, AddFieldOptions.DefaultValue);

                objField.Update(); objContext.ExecuteQuery();

                Label5.Text = "Field Created Successfully";

                Label5.ForeColor = System.Drawing.Color.Green;

                TextBox4.Text = string.Empty;

                TextBox1.Text = string.Empty;

                TextBox2.Text = string.Empty;

            }

        }

    }

}

 

Step 4: The output of the application looks like this:

 

client-object-model-list-sharepoint2010.jpg
 

 

 

Step 5: Data entering output of the application looks like this:

 

field-client-object-model-list-sharepoint2010.jpg
 

 

Step 6: The output of the field created SharePoint application looks like this:

output-field-created-sharepoint-application.jpg

I hope this article is useful for you.

Vijay Prativadi

Hey Everyone, It's Vijay. I am SDE mostly up on Microsoft Technologies. If you are thinking to know what I do mostly when at work. I get a chance to work upon few Microsoft technologies. All the wa...

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