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Modifying Data

pak77pak77 Posts: 28Member
I am creating a database application where the user inputs data into a number of edit boxes and memo's. They then have to click on a button to post the data before printing. I have set this button to disable once clicked.
What I then wanted to do was enable this button if the user modifies anything on the form. So, what I wanted to know was, how do I know if anything has changed within the form without having to use the OnChange event of every component?

Thanks.


Comments

  • zibadianzibadian Posts: 6,349Member
    : I am creating a database application where the user inputs data into a number of edit boxes and memo's. They then have to click on a button to post the data before printing. I have set this button to disable once clicked.
    : What I then wanted to do was enable this button if the user modifies anything on the form. So, what I wanted to know was, how do I know if anything has changed within the form without having to use the OnChange event of every component?
    :
    : Thanks.
    :
    :
    :
    If you are using the TDataSource component to link the database to the controls, then you can use the TDataSource.OnDataChange() event to check for events. Otherwise you could try the TForm.OnKeyUp() event with KeyPreview set to true. If you then check if the ActiveControl is in the data-entry controls, you can make a form-global modification check.
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