>Hi Nadya
>
>well, I was trying the "do form formname to memvar" let me tell how I do it because I'm havving an error which says the valiable is not found.
>
>I do the following:
>
>1. in main form (A) I have a command bott. which is running form (B)
>in this command I write. do form acclist to myaccno
>Note do I have to make it public ??
>

No, you don't have to. You can declare local variable lcMyAccNo before
do form accList to lcMyAccNo
=messagebox(m.lcMyAccNo) && To check your variable

>2. the form (B) gets loaded and the form which window type is modal and have a grid, in the unload method I write return myaccno
>
Correct. Is myAccno defined in the Unload method? It could be Form's B property.

>3. in teh form (B) the grid has and method of double click to get the value of the text in the frid and put in the myaccno then it release the form.
>

myAccNo then should be a form's property, e.g. your grid should set thisform.myAccNo = MyTable.AccNo and in Unload method you should have

return thisform.myAccNo

>Note how my form (A) will have the value of myaccno in my combo box,
>the value of myaccno should be returned in my combo box or text box ?

You can do in the Command button:

 local lcMyAccNo
 do form FormB to lcMyAccNo
 if vartype(m.lcMyAccNo)='C' && Character, if it should be numeric , change to "N"
     thisform.textbox1.value = m.lcMyAccNo
 endif

>do I have to make something else in the form (A) ??
>Exp.: write public myaccno before issueing do form (B) to myaccno
>
>thanks.
>Hisham

No need to use public variables.

HTH