How to pass constant values to frxReport?

Comments

• djangman

  May 2005 edited 6:12AM

  You need to surround what you are passing as a value with quotes.
  
  This is from the Programmer's Manual:
  
  <span style='color:blue'>
  You should be careful when assigning a string-type values to report variables. For example, the next code will raise exception "unknown variable 'test'" when running a report:
  
  frxReport1.Variables := 'test';
  
  because FastReport trying to calculate a value of such variable. The right way to pass a string values is:
  
  frxReport1.Variables := '''' + 'test' + '''';
  
  In this case the variable value - string 'test' will be shown without errors. But keep in mind that:
  
  - string should not contain single quotes. All single quotes must be doubled;
  
  - string should not contain #13#10 symbols.
  
  In some cases it is easier to pass variables using a script.
  </span>
  
  Link to the On-line documentation
• NeMeSiS?®

  June 2005 edited 6:12AM

  hi...
  try this
  
  
  on the "GetValue" event of 'frxReport'
  
  procedure TFrmGeneral.frxReportGetValue(const VarName: String;
  var Value: Variant);
  begin
  
  if (VarName = 'Report_Variable_Name') then
  Value := 'Nemesis';
  
  end;
  
  
  Report_Variable_Name := This a variable created in your report.
  Nemesis := Value assigned to variable (in your case constant value)
  
  good look