Calling a form from a sub form , and showing only the details that are selected

[georgemathew]

hi there , this my first post

i have a form "frmA" inside this form i have a sub form "frmB" , these two forms are linked by a field "keynum"( master to child relationship)
the sub form "frmB" is in datasheet view .

On selecting a field "index" on "frmB" i wanted to open another from "frmC"
where by
So on the on click event of the field index on the frmB i wrote the following code

    stDocName = "frmC"
    
    stLinkCriteria = " "[Index] = [Forms]![frmC].[form]!Index"
 
   DoCmd.OpenForm stDocName, acNormal, ,stLinkCriteria

This works fine when just the FrmC is only opened stand alone , and the record is clicked

But when it try it to access the same through frmA , it ask me to enter the parameters

[TheSmileyCoder]

Welcome to Bytes

Please proofread your post, you have unfinished sentences.

From the bit of code you posted it seems your trying to open frmC with a Where clause calling a field in frmC which doesnt make much sence.