JVCL Help:TJvDBGrid.OnCheckIfBooleanField

 JVCL Help: TJvDBGrid.OnCheckIfBooleanField Event

TJvDBGrid

► TJvDBGrid Events

[+] TJvDBGrid Events

► TJvDBGrid Fields

[+] TJvDBGrid Fields

► TJvDBGrid Methods

[+] TJvDBGrid Methods

► TJvDBGrid Properties

[+] TJvDBGrid Properties

JEDI Visual Component Library Help

• Packages
• Files
  • Classes
  • Interfaces
  • Functions
  • Variables
  • Constants
  • Types
  • Records
• Project summary
• License

Search in JVCL Help

 

Search in all projects

 

Summary

Determines if grid column will be showed as boolean checked and define values to fields to show as True or False.

Pascal

 TJvDBCheckIfBooleanFieldEvent = function (Grid: TJvDBGrid; Field: TField; var StringForTrue: string; var StringForFalse: string): Boolean ofobject;
propertyOnCheckIfBooleanField: TJvDBCheckIfBooleanFieldEvent;

Parameters

Parameters	Description
StringForTrue	String value for true
StringForFalse	String value for false
Grid	Grid fire event
Field	Field of grid

Description

Write here a description

Example

 function TForm1.MyGrid1IfBooleanField(Grid: TJvDBGrid;
   Field: TField; var StringForTrue, StringForFalse: string): Boolean;
 begin
   inherited;
   /*  Determine string values to show column as true or false (checked or unchecked).
       You can use custom verifications to determine how to define values for true and false. */
   // showing boolean fields 
   if (Field is TBooleanField) then
   begin
     Result := True;
     StringForTrue  := 'True';
     StringForFalse := 'False';
   end
   // showing fields whether 'T' is True and 'F' is False
   else if (Field = datasetCustomerActive)
        or (Field = datasetCustomerTopTen) then
   begin
     Result := True;
     StringForTrue  := 'T';
     StringForFalse := 'F';
   end
     // non True/False fields
     else Result := False;
 end;

About

Contribute to this help topic

This documentation wiki is based on the collaborative effort of Project JEDI users. Your edits are welcome in order to improve documentation quality: edit this page

The JEDI Visual Component Library source is hosted at : link to view the current source code, link to the subversion repository