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::DBGrid1DrawColumnCell(TObject *Sender,
      const TRect &Rect, int DataCol, TColumn *Column,
      TGridDrawState State)
{ //将国家面积大于1000000的数据着色显示
   if(Column->Field->FieldName=="Area")
    if(Column->Field->AsInteger>1000000)
    {
     DBGrid1->Canvas->Brush->Color=clBlue;
     DBGrid1->Canvas->FillRect(Rect);
     SetTextColor(this->DBGrid1->Canvas->Handle,clWhite);
     DrawText(this->DBGrid1->Canvas->Handle,Column->Field->Text.c_str(),-1,(RECT*)&Rect,DT_SINGLELINE|DT_VCENTER|DT_CENTER);
     SetTextColor(this->DBGrid1->Canvas->Handle,clBlack);
    }
}
//---------------------------------------------------------------------------