Changing the height of a GroupHeaderBand depending on the visibility of a component

Serg

Hello Nico
I want to reduce the band height for all pages except the first. I don't want to print the diagram multiple times. However, other components in the band should still print. I can't understand why the band doesn't automatically reduce its size if I set PrintHeight := phDynamic.

I am trying the following code. I'm trying the following code. The result is fine, but I see a warning message "Invalid value: Zero height band cannot contain components."
What is my mistake?

procedure GroupHeaderBand1BeforePrint;
begin
if not Group1.FirstPage then begin
Chart.Visible := False;
GroupHeaderBand1.Height := GroupHeaderBand1.Height - Chart.Height;
end;
end;

nicocizik

Hi Serg,

Try using the BeforeGenerate event of the GroupHeader. In my testing, the BeforePrint fired too late to successfully hide any components or dynamically resize the band.

When using the BeforeGenerate, I was able to hide a TeeChart and did not need to resize the band manually (my GroupHeader contained a Chart and Label only).