unit1.~pas

一个快速查询控件

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, FastSearch, Grids, DBGrids, DB, ADODB, StdCtrls ;

type
  TForm1 = class(TForm)
    ADODataSet1: TADODataSet;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    FastSearch1: TFastSearch;
    Button1: TButton;
    Memo1: TMemo;
    ADODataSet1CompanyID: TStringField;
    ADODataSet1CompanyName: TStringField;
    ADODataSet1CreateName: TWideStringField;
    ADODataSet1CreateTime: TDateTimeField;
    ADODataSet1EmployeeCount: TIntegerField;
    Button2: TButton;
    DataSource2: TDataSource;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  sql:string;
begin
  if FastSearch1.Search() then
  begin
    sql:='select * from CompanyInfo where '+FastSearch1.QueryCondition+' order by CompanyID';
    ADODataSet1.Close;
    ADODataSet1.CommandText:=sql;
    ADODataSet1.Open;
    memo1.Lines.Add('--------------------------------------------------------');
    memo1.Lines.Add('查询条件='+FastSearch1.QueryCondition);
    memo1.lines.Add('执行的SQL语句='+sql);
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  sql:string;
begin
  sql:=FastSearch1.QuerySql('select * from CompanyInfo order by CompanyID');
  if sql<>'' then
  begin
    ADODataSet1.Close;
    ADODataSet1.CommandText:=sql;
    ADODataSet1.Open;
    memo1.Lines.Add('--------------------------------------------------------');
    memo1.Lines.Add('查询条件='+FastSearch1.QueryCondition);
    memo1.lines.Add('执行的SQL语句='+sql);
  end;
end;

end.