mainform.cpp

来自「C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部」· C++ 代码 · 共 33 行

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

#include <vcl.h>
#pragma hdrstop

#include "MainForm.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
   this->Edit1->Text=0;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
  int i=0;
   int iArea=0;
   for(int i=0;i<this->DBGrid1->SelectedRows->Count;i++)
   {
      this->DBGrid1->DataSource->DataSet->Bookmark=this->DBGrid1->SelectedRows->Items[i];
      int Area=this->DBGrid1->DataSource->DataSet->FieldValues["Area"];
      iArea+=Area;
   }
   this->Edit1->Text=IntToStr(iArea);
}
//---------------------------------------------------------------------------