求助大神，BCB中能不能自己建一个ScrollBar控制StringGrid的滑动呢？
要实现的功能是随着滑块下滑能显示滑到了第几行，但是StringGrid自带的滚动条好像不能实现，求助大佬
程序代码：//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
THintWindow *fmHint = NULL;
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
Application->CreateForm(HintWindowClass,&fmHint); // 建立fmHint实例
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
for(int Col=0; Col<StringGrid1->ColCount; Col++)
StringGrid1->Cols[Col]->Clear(); //清空
StringGrid1->RowCount = 100;
StringGrid1->ColCount = 5;
for(int Row=0; Row<StringGrid1->RowCount; Row++)
for(int Col=0; Col<StringGrid1->ColCount; Col++)
{
if(!Col && Row) StringGrid1->Cells[Col][Row] = Row;
else StringGrid1->Cells[Col][Row] = "示例";
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::StringGrid1TopLeftChanged(TObject *Sender)
{
Edit1->Text = StringGrid1->TopRow;
TRect R = fmHint->CalcHintRect(100,StringGrid1->TopRow,NULL);
TPoint p = Mouse->CursorPos;
OffsetRect(R,p.x-15,p.y-15);
fmHint->ActivateHint(R,StringGrid1->TopRow);
}
//---------------------------------------------------------------------------
