unit1.cpp

<<C++Builder 6实用编程100例>>随书光盘

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
        Table1->SetKey();
        Table1->FieldByName("Name")->AsString=Edit1->Text;
        if(Table1->GotoKey())
                StatusBar1->SimpleText="找到了关于"+Edit1->Text+"的记录";
        else
        {
                StatusBar1->SimpleText="没有找到关于"+Edit1->Text+"的记录";
                Table1->GotoNearest();
        }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
        Table1->IndexFieldNames="Name";
        if(Table1->FindKey(ARRAYOFCONST((Edit1->Text))))
                StatusBar1->SimpleText="找到了关于"+Edit1->Text+"的记录";
        else
        {
                StatusBar1->SimpleText="没有找到关于"+Edit1->Text+"的记录";
                Table1->FindNearest(ARRAYOFCONST((Edit1->Text)));
        }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button3Click(TObject *Sender)
{
        TLocateOptions Opts;
        Opts.Clear();
        Opts<<loCaseInsensitive;
        Variant locvalues;
        locvalues=Variant(Edit1->Text);
        if(Table1->Locate("Name",locvalues,Opts))
                StatusBar1->SimpleText="找到了关于"+Edit1->Text+"的记录";
        else
                StatusBar1->SimpleText="没有找到关于"+Edit1->Text+"的记录";
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
        Table1->Open();        
}
//---------------------------------------------------------------------------