Delphi: using TClientDataset as an in-memory dataset

Question

According to this page, it\'s possible to use TClientDataset as an in-memory dataset, completely independent of any actual databases or files. It describes how

Answer 1

for some reason this is not working for me. I perform CreateDataset in design time, but it still crashes application. That is still unknown for me. One warning. DO NOT DO THIS:

XXXClientDataSet.Close;
XXXClientDataSet.Open;

because it will report error. Instead of Open, use

xxxClientDataSet.CreateDataset;

In my application I needed to reset data and load it again, and that again caused error message.