ignore records with a particular field that has a null value

I need to exclude records that does not have data in a particular field.  The field is not selectable in the report.  I just need to exclude the record if the field is empty.
Thanks_for_your_help_EveryoneAsked:
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mlmccCommented:
There are several ways to do that.

You can use the select expert to not bring the records to the report

Not (IsNull({YourField})

If you need the records but just don't want to show them you can suppress the details or the section with
  IsNull({YourField})

Right click the section in the left margin
Click SECTION EXPERT
Click the FORMULA BUTTON to the right of SUPPRESS
Enter the formula
    IsNull({YourField})

If you need to ignore the values of other fields in summaries or other calculations create a formula like below and use it in the calculations instead of the field
If  Not IsNull(YourField}) then
      {FieldForCalculation}

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mlmcc
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Thanks_for_your_help_EveryoneAuthor Commented:
Thanks, got it to work.  I do have one more question.  Is there software available that will allow Crystal to run without the full version of the software.  I have designed the report, and I do not want to give the person running it the ability to make any changes.  They will only need the ability to select parameters, save and/or print.
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mlmccCommented:
Yes there are many viewers and scheduling tools available.

Ken Hamady has avery good list and he reviews the ones listed once a year.  SOme are inexpensive and others are a bit pricey.  If you have programming skills it is not too difficult to create a basic report viewing program.

http://www.kenhamady.com/bookmarks.html

mlmcc
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