CreateDataSet

__fastcall TForm1::TForm1(TComponent* Owner)        : TForm(Owner){  TFieldDefs *pDefs = CDS2->FieldDefs;  TFieldDef *pDef = pDefs->AddFieldDef();  pDef->DataType = ftInteger;  pDef->Name = "Field1";   pDef = pDefs->AddFieldDef();  pDef->DataType = ftString;  pDef->Size = 10;  pDef->Name = "Field2";   TIndexDef *pIDef = CDS2->IndexDefs->AddIndexDef();  pIDef->Fields = "Field1";  pIDef->Name = "IntIndex";

</pre><pre class="cpp" name="code"><pre class="cpp" name="code">CDS2<span style="font-family:Arial,Helvetica,sans-serif;">->FieldDefs->Add("ID",ftString,10,true);  // ok</span>

CDS2->CreateDataSet();}

CDS2->FieldDefs->Add("ID",ftString,10,true);  // ok
   CDS2->CreateDataSet();}