>>>The major problem is : ControlSource Property of text box class can't accept non-data type. Vfp's help said only column class can do that. Therefore, Code(field) is unacceptable in controlsource. I can encode and decode the value but can't display or accept it.
>>>
>>>I tried to change the controlsource property in txtbox.Refresh() but didn't work because change controlsource also change the display of text. On the other hand, text box class will display the value without convertion. So, the user will see funny chars.
>>>
>>>Sunny
>>>
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>>If you are working within a Grid then it is true you can not directly work into the field containing the data. What I did was, I just placed a command button with caption "Password" on the column of the Grid control, then at click event, I called a password form in modal state wherein inputting or whatever, of the password data is being done.
>>Totally password here is hidden. It can only be read by opening the table manually but passwords were encrypted.
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>Thanks for your help. You idea is great, however, not only password should be encrypted, some confidential information, for example, cost of product and company finanical information. Marketing staff and accountant will read them frequently, but not allow to deliver to outside.
>

You know, that's why I am very proud of the Framework I have done. It does all the desired security of a developer. Here are some features:
1. A user could only access the module that is assigned to her/him by the administrator
2 When inside the module it has an Add, Delete, Post, Cancel, Modify control (not all user who have an access to a particular have the above feature)
3. Some fields (cost of product, total sales etc.) are not accessible (hidden) to all who have access to the module.
4. Reports applies the same security (Not all users have access of the available reports on the system.)

We call it Visual AppFrame

If want to have a knowledge on How it was done, tell me and I will send a documentation (portion)
>Have you try to type a table in Dos mode? A very simple command c:\type tbl.dbf will display the content of the table. So, I want to create a easy and secure textbox for my form.
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>Anyway, I know it is impossible. I have asked many programmers. They didn't know the method. If you have any idea, please tell me.
>
>Sunny