Determines whether the column is a Salesforce External ID field.
'Declaration
Public Property ExternalId As Boolean
public bool ExternalId {get; set;}
Property Value
true, if the column is a Salesforce External ID field; otherwise,
false.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2