SharePoint Programming

A quick tip to check if the account in the people picker field for an item is a User or a SharePoint group using code.

Code -
SPweb web = SPContext.Current.Web;

SPFieldUserValue _pickerValue = new SPFieldUserValue(web, item["PeoplePickerName"].ToString());

bool isUser = SPUtility.IsLoginValid(site, pickerValue.User.LoginName);

if (isUser)
{
// Its a SharePoint User
}
else
{

// Its a SharePoint Group

}