Solved

TQuery Passed as parameter? OK?

Posted on 1997-03-13
2
249 Views
Last Modified: 2010-04-04
Using Delphi 1.0 and DBase tables...
I am trying to pass a query 7 times to fill a string grid, and it
returns the same, wrong, data each time.

This is the call I am making.

   with frmWeek do    {Fill in column headers with day of week/date}
      for i := 0 to 6 do
         sgWeek.Cells[ i,0 ] := dayOfWeek[ i ] + ' ' +
         JulianDayToGregorianString( (weekstart + i)) ;

   sgcol := 1; {First Usable Column}
   while not (weekstart > weekend) do begin
      CalendarSetRange(weekstart, qWeek);  {This is the painful call}
      qWeek.First;
      dsi := 1;
      while not ( dsi > qWeek.RecordCount )do begin  {While not EOF}
         for sgi := 0 to qWeek.FieldCount - 1 do begin
            with sgWeek do
                 Cells[sgi,dsi] := 'B  ' + qWeek.fields[0].AsString +
                                                '    E ' + qWeek.fields[1].AsString + '  ' +
                                                qWeek.fields[4].AsString;
         qWeek.next;
         end; {for}
         dsi := dsi + 1;
      end; {while}
      sgcol := sgcol + 1;
      weekstart := weekstart + 1.0;
      Update;
   end; {while}
end;{Dates}

-----------------------------
Separate Unit that the query is passed to:
--------------------

procedure CalendarSetRange( start : Double; dayquery : TQuery) ;
{Run query to display assets used during the 24 hour period }
var
    dateToShow : Double;

begin
   dateToShow := start;
   dayquery.Close;
   dayquery.ParamByname('EndTime').AsFloat := int( dateToShow );
   dayquery.ParamByname('StartTime').AsFloat := int( dateToShow + 1.0
);
   dayquery.Prepare;
   dayquery.Close;
   dayquery.Open;
end;

0
Comment
Question by:lorens
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 

Author Comment

by:lorens
ID: 1334859
Edited text of question
0
 
LVL 2

Accepted Solution

by:
javiertb earned 100 total points
ID: 1334860
You must include the DBTABLES in your uses line of your separate unit. I don't know if this is what you mean but otherwise I get no error if I pass a Tquery as parameter.

I hope this helps.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Suggested Courses
Course of the Month10 days, 13 hours left to enroll

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question