How to add C# code in PowerShell script for adding a SharePoint list item

In this article we will be creating C# code to add an item in the SharePoint list. Then we will make the C# code as a powershell script.

C# Code:

using System;
using Microsoft.SharePoint;

namespace Vijai.Script
{
    public static class AddanItem
    {
        public static void Add()
        {
            using (SPSite site = new SPSite("http://ServerName:12345/"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    web.AllowUnsafeUpdates = true;
                    SPList list=web.Lists["CustomList"];
                    SPListItem item = list.Items.Add();
                    item["Title"] = "Test";
                    item.Update();
                }
            }
        }
    }
}

Adding C# code in PowerShell script:

CSharpScript.ps1
$assembly = ("Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c")
$code = @"
using System;
using Microsoft.SharePoint;
namespace Vijai.Script
{
    public static class AddanItem
    {
        public static void Add()
        {
            using (SPSite site = new SPSite("http://ServerName:12345/"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    web.AllowUnsafeUpdates = true;
                    SPList list=web.Lists["CustomList"];
                    SPListItem item = list.Items.Add();
                    item["Title"] = "Test";
                    item.Update();
                }
            }
        }
    }
}
"@

Add-Type -ReferencedAssemblies $assembly -TypeDefinition $code -Language CSharp

[Vijai.Script.AddanItem]::Add()

write-host -foreground "green" "An item added successfully to the SharePoint List"

Testing:

• Open the SharePoint 2010 Management Shell as an Administrator.

• Run the CSharpScript.ps1 file as shown in the following.
  
  
  

• Go to the SharePoint site and check the CustomList.

• An item is added successfully to the list.