リストビューを一発でクリアするサンプルです。
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
ListView1->ViewStyle = vsReport;
for (int i=0;i<5;i++){
ListView1->Columns->Add()->Caption = "Field" + IntToStr(i);
}
for (int i=0;i<100;i++){
ListView1->Items->Add()->Caption = i;
ListView1->Items->Item[i]->SubItems->Add("項目0-" + IntToStr(i));
ListView1->Items->Item[i]->SubItems->Add("項目1-" + IntToStr(i));
ListView1->Items->Item[i]->SubItems->Add("項目2-" + IntToStr(i));
ListView1->Items->Item[i]->SubItems->Add("項目3-" + IntToStr(i));
ListView1->Items->Item[i]->SubItems->Add("項目4-" + IntToStr(i));
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
ListView1->Columns->Clear();
ListView1->Items->Clear();
}
//---------------------------------------------------------------------------
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