Form Fields not populated in Main Navigation form but works independently

Hi ...I have created a form called Form1 which has some 7 fields in it. The fields are listed below
Activity|StartDate |StartTime| Enddate |EndTime |ResourceIncharge| Machine|

The fields resourceIncharge and Machine [combo box] gets the value based on Activity so I have a logic in select row source
ResourceIncharge : [Forms]![Form1]![txtCavityBlockCutSquareBlank]
Machine: [Forms]![Form1]![txtCavityBlockCutSquareBlank]
[Forms]![Form1]![txtCavityBlockCutSquareBlankResourceIncharge]

This form is working fine.But when I place this form inside my Main navigation form in a tab , i am not able to see the fields resourceincharge and machine getting populated. If i Click on the resource incharge I get this box [Forms]![Form1]![txtCavityBlockCutSquareBlank] and not the names of resource in combo box..


Anyhelp is appreciated..

COntrols on a subform do not have the same fully qualified name as controls on a form. Google

@spikepl ..yeah I understand that, to refer a subform i need to use different notation . i will try to find out . thanks for the info..