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Site Column in SharePoint 2010 Programmatically Using VS 2010

By Vijay Prativadi on Aug 12 2012
Today, in this article let’s play around with one of the interesting and most useful concepts in SharePoint 2010.
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Today, in this article let's play around with one of the interesting and most useful concepts in SharePoint 2010.

Question: What is a Site column?

In simple terms "It is a specific column which can be used across any list or libraries for a site or subsites".


Step 1: Open SharePoint 2010 Central Administration and navigate to a specific site.


Step 2: Open Visual Studio 2010 and create an "Empty SharePoint project":



Step 3: Select "Deploy as a farm solution" and click the "Finish" button. Now an empty project will be created, as in:



 Step 4: Add a new visual webpart for that project.



 Step 5: The complete code of visualwebpart1usercontrol.ascx looks like this:


<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>

<%@ Assembly Name="Microsoft.Web.CommandUI, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"

    Assembly="Microsoft.SharePoint, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>

<%@ Import Namespace="Microsoft.SharePoint" %>

<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages"

    Assembly="Microsoft.SharePoint, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@  Control Language="C#" AutoEventWireup="true" CodeBehind="SiteColumnWPUserControl.ascx.cs"

    Inherits="SiteColumnApp.SiteColumnWP.SiteColumnWPUserControl" %>

<div align="center" style="font-family: Verdana; font-weight: bold">




                <asp:label id="Label1" runat="server" text="Please Enter Site Column Name: " forecolor="Brown"></asp:label>



                <asp:textbox id="TextBox1" runat="server"></asp:textbox>




            <td colspan="2">

                <asp:button id="Button1" runat="server" text="Create Site Column" onclick="Button1_Click"

                    backcolor="Orange" />




            <td colspan="2">

                <asp:label id="Label2" runat="server"></asp:label>





Step 6: The complete code of visualwebpart1usercontrol.ascx.cs looks like this:


using System;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using Microsoft.SharePoint;

namespace SiteColumnApp.SiteColumnWP


    public partial class SiteColumnWPUserControl : UserControl


        protected void Page_Load(object sender, EventArgs e)



        protected void Button1_Click(object sender, EventArgs e)


            if (string.IsNullOrEmpty(TextBox1.Text))


                Label2.Text = "Please Enter Some Values.";

                Label2.ForeColor = System.Drawing.Color.Red;




                SPSite site = new SPSite("http://win-5d57sl2rvt1:6901/");

                SPWeb web = site.OpenWeb();

                string internal_Name = web.Fields.Add(TextBox1.Text, SPFieldType.Currency, true);

                SPFieldCurrency currency = (SPFieldCurrency)web.Fields.GetFieldByInternalName(internal_Name);

                currency.Currency = SPCurrencyFieldFormats.India;

                currency.DisplayFormat = SPNumberFormatTypes.TwoDecimals;

                currency.ValidationMessage = "Incorrect Currency";


                Label2.Text = TextBox1.Text + " - Site Column is successfully created.";

                Label2.ForeColor = System.Drawing.Color.Green; TextBox1.Text = string.Empty;






Step 7: Deploy the solution file and add the created webpart to the SharePoint site:


Step 8: The output of the application looks like this:




Step 9: The Site column entering output of the application looks like this:





Step10: The Site column created output of the application looks like this:






I hope this article is useful for you.