.NET Zip component, Delphi Zip component, Barcode .NET, BDE Replacement and other .NET and Delphi components from ComponentAce
Products Download Order Contact us

Search
 

Delphi/C++ Components
.NET Components
ActiveX Controls
Kylix Components

Download

Download
Download Commercial
Trial Limitations

Support

Submit Request
Support Options

Order

Purchase
Competitive Upgrade
Premium Support
Sales Policy
Upgrade Policy
License Types

Info

News
Mailing List
Articles
Testimonials



About Us
Partners
Links
Contact Us
Link to Us





Home > Delphi/C++ Components > Absolute Database > Sort Records Delphi Example

Absolute Database

Overview | Features | Requirements | Testimonials | SQL Samples | Code Samples | Screenshots | See Also | Download | Order
Sort Records Delphi Example
Illustrates data sorting using ABSQuery and ABSTable components

Download Absolute Database | Learn more

unit uSortRecords;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids, DB, ABSMain, ComCtrls, ExtCtrls,
  Buttons;

const
  DataBaseFileName: String = '..\..\Data\Demos.abs';
  QueryConst: String = 'select * from employee order by ';

type
  TForm1 = class(TForm)
    Label1: TLabel;
    dbDemos: TABSDatabase;
    Query: TABSQuery;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    GroupBox1: TGroupBox;
    Label2: TLabel;
    mSQL: TMemo;
    Table: TABSTable;
    rgComponent: TRadioGroup;
    rgSorting: TRadioGroup;
    Button2: TButton;
    procedure FormCreate(Sender: TObject);
    procedure rgComponentClick(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure rgSortingClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  s:string;
  index:string;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
 dbDemos.DatabaseFileName := ExtractFilePath(Application.ExeName) + DataBaseFileName;
 dbDemos.Open;
 Table.TableName := 'employee';
 Index := 'ByFirstName';
 s:='';
end;

procedure TForm1.rgComponentClick(Sender: TObject);
begin
 if rgComponent.ItemIndex = 1 then
  begin
   mSQL.Enabled := false;
   mSQL.Text := 'Using ABSTable component for sorting'
  end
 else
  begin
   mSQL.Enabled := true;
   mSQL.Text := s;
   rgSortingClick(Sender);
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
 case rgComponent.ItemIndex of
  0: begin
      Query.Close;
      DataSource1.DataSet := Query;
      Query.SQL.Text := mSQL.Text;
      Query.Open;
     end;
  1: begin
      Table.Close;
      DataSource1.DataSet := Table;
      Table.IndexName := Index;
      Table.Open;
     end;
 end;
end;

procedure TForm1.rgSortingClick(Sender: TObject);
begin
 case rgComponent.ItemIndex of

  0: case rgSorting.ItemIndex of
      0: begin
          mSQL.Text := QueryConst + 'FirstName ASC';
          Index := 'ByFirstName';
         end;
      1: begin
          mSQL.Text := QueryConst + 'LastName DESC';
          Index := 'ByLastName';
         end;
      2: begin
          mSQL.Text := QueryConst + 'Salary DESC, LastName ASC';
          Index := 'BySalaryLastName';
         end;
     end;

  1: case rgSorting.ItemIndex of
      0: begin
          Index := 'ByFirstName';
          s := QueryConst + 'FirstName ASC';
         end;
      1: begin
          Index := 'ByLastName';
          s := QueryConst + 'LastName DESC';
         end;
      2: begin
          Index := 'BySalaryLastName';
          s := QueryConst + 'Salary DESC, LastName ASC';
         end;
     end;
 end;
end;

end.



Sort Records Delphi Example
Download Absolute Database | Learn more


Product Info


Current version: 7.95
Released: February 08, 2023
Price: $ 149

downloadorder


Our Customers



Testimonials

Thanks again for the superb tech support, I was worried I'd hit a brick wall this close to the finish line. Even working on the weekend... you guys rock!!!

Bob Boyd

        © 2003 - 2024 ComponentAce  | .net zip component | barcode for .net | delphi zip component | delphi database Dec 03, 2024