SharePoint 2010: Configure access request settings using Powershell

# Get All Web Application

$webApp=Get-SPWebApplication

   # Get All site collections

    foreach ($SPsite in $webApp.Sites)

    {

       # get the collection of webs

       foreach($SPweb in $SPsite.AllWebs)

        {

              # if a site inherits permissions, then the Access request mail setting also will be inherited

             if (!$SPweb.HasUniquePerm)

               {

                  Write-Host $SPweb.Name "Inheriting from Parent site"

               }

             elseif($SPweb.RequestAccessEnabled)

           {

        #Write-Host $SPweb.Name "Not Iheriting from Parent Site"

              $SPweb.RequestAccessEmail ="ram001@sample.com"

          $SPweb.Update()

           }

        }

    }

****** HAPPY CODING ********

SharePoint 2010: Setting Value for Web Part’s Custom Properties

To set the Custom Properties of web part programmatically, Following approach is useful. 

if (string.Equals(webPart.GetType().ToString(), “MyWebpartram001”)) 
{ 
  PropertyInfo[] pinProperties = webPart.GetType().GetProperties(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance); 
foreach (PropertyInfo pinProperty in pinProperties) 
{ 
  if (pinProperty.Name == "Toolbar") 
 { 
   pinProperty.SetValue(webPart, false, null); 
   break; 
  } 
 } 
} 

****** HAPPY CODING ********