The primary key field names.
[Visual Basic .NET] Public Property PrimaryKey As String
[C#] public string PrimaryKey {get; set;}
[C++]
HRESULT get_PrimaryKey(
BSTR* fieldNames
);
[C++]
HRESULT put_PrimaryKey(
BSTR fieldNames
);
[C++]Parameters
fieldNames [out, retval] fieldNames is a parameter of type BSTR fieldNames [in] fieldNames is a parameter of type BSTR
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Remarks
The name of the field or fields to use for assigning Object ID's to the rows in the QueryDef. Provide a comma delimited string of field names for cases where more than one field is needed to provide a unique value for each row (i.e. composite keys)
Always provide fully qualified field names.