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| Re: How to hide crosstab columns at runtime (in Excel) [message #896576 is a reply to message #896524] |
Thu, 19 July 2012 00:15   |
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Matt
Do you mean something like the attached example. I did not clean up the
padding but it should give you a start.
BTW have a look at this post:
http://birtworld.blogspot.com/2010/02/birt-crosstab-scripting.html
Jason
On 7/18/2012 12:45 PM, Matt Rhoads wrote:
> Hello,
>
> I am trying to hide columns (levels) that don't have data in a
> crosstab. But the only way I can find to actually remove the column
> when exporting to Excel is to change the column width to 0.
>
> However, I also have header labels in a grid (tried table as well) above
> the crosstab levels that will also need to set the column with to 0 for
> the same column below it.
>
> I can get the columns to hide in script, but since setting the column
> width appears to be required in the onPrepare event for the column
> (anything later than this won't change the column width), I don't know
> how to see if there is data in the dataset before this happens.
>
> I tried a hidden table above this table to calculate the existence of
> data, but I can't seem to get it to work.
>
> Any help is greatly appreciated.
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| Re: How to hide crosstab columns at runtime (in Excel) [message #896578 is a reply to message #896524] |
Thu, 19 July 2012 00:15 |
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Matt
Do you mean something like the attached example. I did not clean up the
padding but it should give you a start.
BTW have a look at this post:
http://birtworld.blogspot.com/2010/02/birt-crosstab-scripting.html
Jason
On 7/18/2012 12:45 PM, Matt Rhoads wrote:
> Hello,
>
> I am trying to hide columns (levels) that don't have data in a
> crosstab. But the only way I can find to actually remove the column
> when exporting to Excel is to change the column width to 0.
>
> However, I also have header labels in a grid (tried table as well) above
> the crosstab levels that will also need to set the column with to 0 for
> the same column below it.
>
> I can get the columns to hide in script, but since setting the column
> width appears to be required in the onPrepare event for the column
> (anything later than this won't change the column width), I don't know
> how to see if there is data in the dataset before this happens.
>
> I tried a hidden table above this table to calculate the existence of
> data, but I can't seem to get it to work.
>
> Any help is greatly appreciated.
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| Re: How to hide crosstab columns at runtime (in Excel) [message #896797 is a reply to message #896589] |
Thu, 19 July 2012 20:12 |
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Can you put together a sample from the classic models sample db?
It should be just as easy to remove a column.
Jason
On 7/18/2012 11:40 PM, Matt Rhoads wrote:
> I actually want the Level/Column to go away instead of the row.
>
> So, in your example, if the second column ([dim]) had no data in any
> records, I would want the entire column to be removed when exporting to
> Excel.
>
> But I also have column headers in a grid above the crosstab columns. I
> would need the corresponding column/label from the grid to be removed as
> well.
>
> If you want an example, I may be able to throw one together.
>
> Thanks!
>
> Matt
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| Re: How to hide crosstab columns at runtime (in Excel) [message #897405 is a reply to message #897339] |
Tue, 24 July 2012 02:09 |
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I am not certain there is an easy way to do this. Hiding the crosstab
column is easy enough but without using a hidden table before the
crosstab I do not see a way of doing this. What do you envision the
report output to look like. Maybe another solution is available.
Jason
On 7/23/2012 12:16 PM, Matt Rhoads wrote:
> I wasn't able to set it up exactly how I need it, but I think the attached report will help show my problem.
>
> I added a grid with labels above the Crosstab columns. The grid will actually be a table and the dataset will populate the 'headings'.
>
> Ideally, if the [dim] column had no data in any rows, I would want to hide the entire [dim] column and the column in the header table called 'DimLabel' so that neither would show in Excel.
>
> Please let me know you need more details from me.
>
> Thanks!
>
> Matt
>
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| Re: How to hide crosstab columns at runtime (in Excel) [message #897634 is a reply to message #897583] |
Tue, 24 July 2012 20:16 |
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Matt,
If you do not mind using a hidden element you could paste the same xtab
in the report twice. Use the code I showed you earlier to hide the
row/column in the crosstab in both. In the first xtab hide it using
visibility rules and in the script that hides the row/col set a
persistentGlobal variable using
reportContext.setPersistentGlobalVariable("hidetablecol",
"columnnametohide");
Then in the second crosstab in your table put a visibility expression on
the column that checks the value of the persisted global variable.
Jason
On 7/24/2012 11:19 AM, Matt Rhoads wrote:
> Having a hidden table above is okay (unless it affects the output to
> Excel). Not worried about performance.
>
> But when I tried using a hidden table, I was still unable to make it work.
>
> The desired output will be a simple Excel report (with headers), but it
> needs to hide any column that doesn't have data (only columns on the
> left side of the crosstab...not the dynamic columns).
>
> I can achieve the desired output by setting the column with to 0 in for
> both the header table column and the crosstab cell, but I can't get the
> information (whether to hide it or not) before the OnCreate method of
> the header table. Does the OnCreate method fire for all controls before
> the OnFetch fires for any datasets? That seems to be what I am running
> in to.
>
> If this post only added more confusion, please let me know and I will
> try to post a more accurate report of what I am seeing...
>
> Thanks again!
>
> Matt
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