Get username from SharePoint User field in List

Question

I have a custom sharepoint workflow that I'm developing in Visual Studio. The workflow is running against a document library which has a custom content type connected to it. The content type includes a user lookup field ("owner").

I'm trying to have my workflow assign a task to the "owner" lookup field. However, I've only been able to get the display name for the user, not the account username.

Can anyone help?

Answer 1

Refer to this Article on how to get the User Details from the Field.

public static SPUser GetSPUser(SPListItem item, string key)  
{
     SPFieldUser field = item.Fields[key] as SPFieldUser;
     if( field != null)  
         {  
         SPFieldUserValue fieldValue = 
          field.GetFieldValue(item[key].ToString()) as SPFieldUserValue; 
         if(fieldValue != null)     
            return fieldValue.User; 

            return null;  
          }
 }

Your Code should be like this

SPUser spUser=GetSPUser(splistItem,"Owner");
String sUserName=(spUser!=null)?spUser.UserName:null;