Add,Update,Delete sharepoint list data programmatically

Follow this code to perform insert,Update delete in sharepoint list.

using (SPSite oSPsite = new SPSite(SPContext.Current.Web.Url))

{

using (SPWeb oSPWeb = oSPsite.OpenWeb())

      {

            oSPWeb.AllowUnsafeUpdates = true;

 

            // Fetch the List

            SPList list = oSPWeb.Lists["ListName"];

                   

            //Add a new item in the List

            SPListItem itemToAdd = list.Items.Add();

            itemToAdd["Title"] = "Test Title";

            itemToAdd.Update();

 

            // Get the Item ID

            listItemId = itemToAdd.ID;

 

            // Update the List item by ID

            SPListItem itemToUpdate = list.GetItemById(listItemId);

            itemToUpdate["Title"] = "Changed Title";

            itemToUpdate.Update();

 

            // Delete List item

            SPListItem itemToDelete = list.GetItemById(listItemId);

            itemToDelete.Delete();

 

            oSPWeb.AllowUnsafeUpdates = false;

       }

}