Dynamic Image won't display if no data is returned

Posted on 2016-09-01
Last Modified: 2016-09-06
Crystal Reports XI

Thanks to everyone's help I have the dynamic images displaying properly.   I'm trying to make the reports look more polished if the search fails to return data.  I have encountered and old issue from the past where no data is returned from a query the Image will not display.   This also affected a formula that I used to display department name and address information in the header.

To inform the user I already know how to display an information message if no data is returned.
Question by:MikeM670
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LVL 100

Expert Comment

ID: 41781076
You could put a message in a textbox in the report header.  Suppress it conditionally with a formula like
Count({SomeField}) > 0

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Another way would be to create a formula and put it in the report header like
If Count({SomeField}) > 0 then
    "There is no data for the selected filtering"

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Author Comment

ID: 41781902
I tried the textbox message suggestion and it will display a "No Data Message" if no data is returned but the image and formula to display the department name and address do not display?  Do I need to set something for the dynamic image or the formula?

LVL 34

Expert Comment

ID: 41782104
Where are the image and formula located?  Which section(s)?  You mentioned a header, but is that for the group, page or report?

 What's in the formula?


Author Comment

ID: 41782153
The image and formula are both located in the Report Header.  

The formula for displaying the department info is:

local stringvar Line1;
local stringvar Line2;
local stringvar Line3;
local stringvar Line4;

if not(isnull({Agency.DepartmentTitle})) and trim({Agency.DepartmentTitle}) <> ""
then Line1 := {Agency.DepartmentTitle};

if not(isnull({Agency.StreetNumber})) and trim({Agency.StreetNumber}) <> ""
then Line2 := {Agency.StreetNumber} & " ";

if not(isnull({Agency.StreetPrefix})) and trim({Agency.StreetPrefix}) <> ""
then Line2 := Line2 & {Agency.StreetPrefix } & " ";

if not(isnull({Agency.Street})) and trim({Agency.Street}) <> ""
then Line2 := Line2 & {Agency.Street} & " ";

if not(isnull({Agency.StreetSuffix})) and trim({Agency.StreetSuffix}) <> ""
then Line2 := Line2 & {Agency.StreetSuffix} & " ";

if not(isnull({Agency.City})) and trim({Agency.City}) <> ""
then Line3 := {Agency.City} & " ";

if not(isnull({Agency.State})) and trim({Agency.State}) <> ""
then Line3 := Line3 & {Agency.State} & " ";

if not(isnull({Agency.Zip})) and trim({Agency.Zip}) <> ""
then Line3 := Line3 & {Agency.Zip} & " ";

if not(isnull({Agency.Phone})) and trim({Agency.Phone}) <> ""
then Line4 := "Telephone: " & {Agency.Phone} & " ";

if not(isnull({Agency.Fax})) and trim({Agency.Fax}) <> ""
then Line4 := Line4 & ' * ' & "Fax: " & {Agency.Fax} & " ";

Line1 & chr(13) & Line2 & chr(13) & Line3 & chr(13) & Line4;

For the dynamic image based on the parameter.

Format Editor\Picture\Graphic Location: is the following formula

if {CaseMaster.Agency} = {?Agency} then

LVL 34

Expert Comment

ID: 41782181
What is the formula supposed to produce if there is no data?  DepartmentTitle, etc. will all be null/blank, right?  If so, there's nothing to show.

 Same thing for the image.  CaseMaster.Agency will presumably be null/blank.  If you just want DefaultBlank.png to show up and it's not, you may just need to add an IsNull test on CaseMaster.Agency .

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Author Comment

ID: 41782193
Maybe I'm not explaining myself properly or not understanding what your saying.  There will always be at least one agency in the database with information and a related logo.    I want the Image and formula to always display the Image and department information even if the Report Selection Query fails to return any data.
LVL 22

Expert Comment

by:Ido Millet
ID: 41782200
Use IF THEN Else to check for IsNull and return the static path to the default department logo if the data is NULL.
LVL 34

Accepted Solution

James0628 earned 500 total points
ID: 41782304
You say that there's always an agency in the db, but if you only have one query in the report and the record selection formula does not match any records, then the report will not include any of the data from that query, including the agency data.  All of the fields will be null.

 If that's the problem, the simplest solution might be to put the image and address formula in a subreport.  The subreport would read only the required agency data, and produce the corresponding image and address.

LVL 100

Expert Comment

ID: 41782533
Is the report based on tables joined in Crystal or is it a view or command?


Author Comment

ID: 41787206
The report is based on tables joined in crystal.

Author Closing Comment

ID: 41787210
I used the sub report method.  I would of preferred not having to do it that way as I needed to use two sub reports.  One for the logo image and one for the formula.  I had to do it that way in order to make room for other formulas and the report title to be shown below the department display formula.

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