to make life easier next time around, the text is:
StringBuilder oSB = new StringBuilder();
if ( bSomeCondition )
oSB.AppendLine ( "SomeText" );
if ( oSB.Length > 0 )
{
oSB.Insert ( 0, ValidateErrorMessageHeader );
sError = oSB.ToString ();
}
else
sError = String.Empty;
now we can just copy / paste it, rather than having to re-type it each time.