mainform.cpp

C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部分 数据库应用

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

#include <vcl.h>
#pragma hdrstop

#include "MainForm.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{ //使用Locate查询记录
   if(this->Edit1->Text.Length()<1)
     return;
   TLocateOptions Opts;
   Opts.Clear();
   Opts<<loCaseInsensitive;
   Variant LocateValues;
   LocateValues=Variant(this->Edit1->Text);
   if(this->Table1->Locate("Capital",LocateValues,Opts))
      MessageBox(Handle,"已经找到该国","信息提示",MB_OK);
   else
      MessageBox(Handle,"没有找到该国","信息提示",MB_OK);
}
//---------------------------------------------------------------------------