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Delphi4 - progress bar usage

Hi

I am using a progressbar while loading treeview from paradox table.
but my problem is that the progress of the bar is not moving with the load operation.meaning that it finishes loading the bar and then loading the tree.
My code is :
try
with progressbar1 do begin
stepit;
BuildTree; // i am callling procedure to load the tree from the table
finally
free
end

so how can i make it move together so when the progress of the bar finishes i will load the tree immidealty not wait for more time and the bar is at the max position

thanks a lot

ASKER CERTIFIED SOLUTION

xr1140

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xr1140

i almost forgot ... insert an Application.ProcessMessages; in your loop to allow your form to respond to paint message.

Mike Littlewood

var
i, loopVal: integer;
begin
try
// open the query
ADOQuery1.Open;
// turn off treeview update
TreeView1.Items.BeginUpdate;
try
// get max loop value and max progress bar position
loopVal := ADOQuery1.RecordCount;
// set the max of the progress bar
ProgressBar1.Max := loopVal;
for i := 1 to loopVal do
begin
// add treenode

// update progress bar
ProgressBar1.Position := i;
// let the system catch up
Application.ProcessMessages;
end;
finally
// turn on treeview
TreeView1.Items.EndUpdate;
end;
except
// handle exception

end;
end;

ibrobar

ASKER

Hi All

Sorry for the delay , I will get back to you in couple of days

regards