Deleting a Web Part from a page

using System;
using Microsoft.SharePoint.Client;
using Microsoft.SharePoint.Client.WebParts;

namespace SampleCode
{
class DeleteWebPart
{
static void Main()
{
ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection");
File oFile = oClientContext.Web.GetFileByServerRelativeUrl("/sites/MySiteCollection/SitePages/Home.aspx ");
LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared);

oClientContext.Load(limitedWebPartManager.WebParts);

oClientContext.ExecuteQuery();

if (limitedWebPartManager.WebParts.Count == 0)
{
throw new Exception("No Web Parts to delete.");
}

WebPartDefinition webPartDefinition = limitedWebPartManager.WebParts[0];

webPartDefinition.DeleteWebPart();

oClientContext.ExecuteQuery();
}
}
}

Adding a Web Part to a page

using System;
using Microsoft.SharePoint.Client;
using Microsoft.SharePoint.Client.WebParts;

namespace SampleCode
{
class AddWebPart
{
static void Main()
{
ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection");
File oFile = oClientContext.Web.GetFileByServerRelativeUrl("Default.aspx");
LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared);

string xmlWebPart = "" +
" " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"" +
" xmlns=\"http://schemas.microsoft.com/WebPart/v2\">" +
"Default" +
"Use for formatted text, tables, and images." +
"true0" +
"Normaltrue" +
"truetrue" +
"truetrue" +
"truetrue" +
"ModelessDefault" +
"Cannot import this Web Part." +
"/_layouts/images/mscontl.gif" +
"Microsoft.SharePoint, Version=13.0.0.0, Culture=neutral, " +
"PublicKeyToken=94de0004b6e3fcc5" +
"Microsoft.SharePoint.WebPartPages.ContentEditorWebPart" +
"" +
"" +
" 

Updating the title of a Web Part

using System; using Microsoft.SharePoint.Client; using Microsoft.SharePoint.Client.WebParts;  namespace SampleCode {     class UpdateWebPartTitle     {         static void Main()         {             ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection");             File oFile = oClientContext.Web.GetFileByServerRelativeUrl("Default.aspx");             LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared);              oClientContext.Load(limitedWebPartManager.WebParts,                 wps => wps.Include(                 wp => wp.WebPart.Title));              oClientContext.ExecuteQuery();              if (limitedWebPartManager.WebParts.Count == 0)             {                 throw new Exception("No Web Parts on this page.");             }              WebPartDefinition oWebPartDefinition = limitedWebPartManager.WebParts[1];             WebPart oWebPart = oWebPartDefinition.WebPart;             oWebPart.Title = "My New Web Part Title";              oWebPartDefinition.SaveWebPartChanges();              oClientContext.ExecuteQuery();          }     } }