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)
{ //确定书签
   this->Table1->DisableControls();
   this->Table1->First();
   while(!this->Table1->Eof)
   {
     AnsiString StrName=this->Table1->FieldValues["Name"];
     if(StrName=="Brazil")
     {
       AnsiString StrInfo="Brazil's Capital is ";
       StrInfo+=this->Table1->FieldValues["Capital"];
       MessageBox(NULL,StrInfo.c_str(),"信息提示",MB_OK);
       this->MyBookmark=this->Table1->GetBookmark();
       this->Table1->Last();
     }
     this->Table1->Next();
   }
   this->Table1->First();
   this->Table1->EnableControls();
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{ //查找书签
   try
   {
     this->Table1->GotoBookmark(this->MyBookmark);
     this->Table1->FreeBookmark(this->MyBookmark);
   }
   catch(...)
   {
     MessageBox(NULL,"书签已不存在","信息提示",MB_OK);
   }
}
//---------------------------------------------------------------------------