1.
2. , :
TListBox, TQuery, TDataSource, TDBGrid, TMainMenu, (TMenuItem)
3. :
TQuery DatabaseName BCDEMOS, Name FormatQuery, SQL select * from:Table
TDataSource Name dsFormat, DataSet FormatQuery.
TDBGrid DataSource dsFormat, Align alClient
TList Align alLeft
4. TMainMenu Items StringTrick1
5. OnCreate . TListBox:
void __fastcall TForm::FormCreate(TObject *Sender)
{
Session->GetTableNames(FormatQuery->DatabaseName, , False, False, ListBox1->Items);
}
6. ListBox1.OnClick:
void __fastcall TForm1::ListBox1Click(TObject *Sender)
{
AnsiString S = ListBox1->Items->Strings[ListBox1->ItemIndex];
S = Format("Select * from %s", OPENARRAY(TVarRec, (S)));
Caption = S;
FormatQuery->Close();
FormatQuery->SQL->Clear();
FormatQuery->SQL->Add(S);
FormatQuery->Open();
}
GetQuery:
AnsiString GetQuery(AnsiString S1, AnsiString S2, int Value)
{
return Format("Select * from %s where %s = %d", OPENARRAY(TVarRec, (S1, S2, Value)));
}
OnClick:
void __fastcall TForm1::StringTrick1Click(TObject *Sender)
{
Caption = GetQuery("Customer", "CustNo", 42);
}
6. . .
1. ?
2. ?
3. Format ?
