Create Sharepoint Custom Lists Using Object Model Code

	using System;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Data;
	using System.Drawing;
	using System.Linq;
	using System.Text;
	using System.Windows.Forms;
	using Microsoft.SharePoint;
	namespace WindowsFormsApplication1
	{
	public partial class Form1 : Form
	{
	public Form1()
	{
	InitializeComponent();
	}
	SPSite siteCollection;
	SPWeb site;
	private void btnCreateSite_Click(object sender, EventArgs e)
	{
	try
	{
	siteCollection = new SPSite(txtSiteCollection.Text);
	site = siteCollection.OpenWeb();
	SPListCollection listCollection = site.Lists;
	listCollection.Add(txtListName.Text, "list description", SPListTemplateType.GenericList);
	}
	catch (Exception)
	{ }
	finally
	{
	site.Dispose();
	siteCollection.Close();
	}
	}
	}
	}
	#region Sample
	//Adding a List Item to a Custom List
	using (SPWeb web = siteCollection.AllWebs["webname"])
	{
	SPList list = web.Lists["Custom List"];
	SPListItem item = list.Items.Add();
	item["Title"] = "New List Item";
	item.Update();
	}
	//------------------------------------------
	//Optimised Adding a List Item to a Custom List
	public static SPListItem OptimizedAddItem(SPList list)
	{
	const string EmptyQuery = "0";
	SPQuery q = new SPQuery {Query = EmptyQuery};
	return list.GetItems(q).Add();
	}
	//--------------------------------------------------
	//Adding a List Item to a Custom List with an Attachment
	using (SPWeb web = siteCollection.AllWebs["webname"])
	{
	SPList list = web.Lists["Custom List"];
	SPListItem item = list.Items.Add();
	item["Title"] = "New List Item";
	SPAttachmentCollection attachments = item.Attachments;
	attachments.Add(fileName, byteArrayContents);
	item.Update();
	}
	//---------------------------------------------------
	//Adding a List Item to a List in SharePoint 2010
	using (SPWeb web = SPContext.Current.Web)
	{
	SPList list = web.GetList(string.concat(web.Url, "/Lists/Custom List"));
	SPListItem item = list.AddItem();
	item["Title"] = "New List Item";
	item.Update();
	}
	//---------------------------------------------
	#endregion

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