Several Crystal Reports Doubts

[Guest]

Hi there to all.

I am a .NET Crystal newbie and I hope that you don’t pick me up much with
the following questions:

1) It’s possible to access the report model to alter the rendered data. I’m
talked about a process like .NET data grid, where we can iterate thru the
rows and change data.

2) I have a report with a linked sub report. The data targets the same data
source and data table. One requisite of the report it’s that only 7 records
per page are displayed as the sub report to. The problem is that the sub
report is showing me only 1 record that is the last record of the main
report. I want that 7 record appear in the main and sub report. The reports
are linked by a int column.

3) It’s possible to perform totals in time fields? I’ve a dataset with a
time span column. When I drag it to the report, the column is transformed in
a string. Other requisite that I have is that a time span of 1.23.40 (1 day,
23 hours and 40 minutes) must be visualized as 47:40.

4) There is such thing as Blob parameters. The report that I am doing as
multi culture support and some of the images are given by a globalized
Resource Manager. I can drag and drop a binary field from a dataset, but can
I create a binary parameter just to avoid this dummy data in dataset?


Help will be much appreciated. Thanks in advance

Tiago Miguel Silva
(e-mail address removed)

 

[Norman Yuan]

This is the quick answer to your question 1), but may also helps on your
other questions, if you know what I am talking about.

With Crystal Report.NET, you have two way to get data for the reports: PULL
or PUSH.

PULL is the most common way the get data for report: you specify a query,
when the report is being opened, it connects to the data source and grad
data defined by the query.

On the other hand, with PUSH, the data is retrieved first, you can make
changes to the set of data, then push the data into the report when it being
opened.

PUSH is often used in multi-tier applications where data for the reports is
retrieved by data access layer objects.

I tend to use PUSH in my Window desktop app' report, because the data has
been loaded into Win app, why to have the report query data source again.

Hope this gives you some idea.

 

[Guest]

Thanks for the reply Norman.

I´m using the PUSH method being the data returned by application Data Layer
using Typed Datasets.

I hope that someone else answers to my other questions

Thanks