Avoiding OnBeforePrint

flzanini

Hi,

I'm changing the "PrintTable" demo from FastReports to don't use the OnBeforePrint event, instead fill in the CrossView on the button click. This is not working.

I need this because I have other thread to fill in the CrossView data, so my program doesn't freezes while a long loop is executing.

Anyone knows how to do this or if there is other way?

gpi

You can fill cross in OnBeforePrint event only, so you should redesign your program to fill cross in OnBeforePrint event

flzanini

So in this case my users will view my program freeze because this component?

FastReport team foresse that filling a crossview manually in the OnBeforePrint event will freeze the program and this is not a good pratice.

Why I must use the OnBeforePrint event? If I could fill before call the ShowReport method I can show a progress to the user while the crossview is being filled.

gpi

wrote:

If I could fill before call the ShowReport method

your program will freeze before ShowReport method. What difference?
Try to prepare report and then show prepared report

flzanini

Really there is no difference, but I don't want my program freeze. So I'm looking for an way to generate the report so that the program doesn't freeze while filling the report in the OnBeforePrint event.

gpi

Prepare report in separate thread