What is the correct way to display the result of a SQL query in an Edit field in C++?

Question

SQL

It is necessary to count the number of records in the table between two dates specified by the user. and display in the Edit field.
DM->ADOQueryWork->SQL->Text = "Select count(*) from sale where sale.date between '" + DateTimePicker1->Date + "' and '" +DateTimePicker2->Date+"';"; // here is the query itself
Edit1->Text=DM->ADOQueryWork->Fields->Fields[0]->AsString; In this scenario, it gives an error "Access Violation." Am I correctly assigning the query result to the edit? a bit confused with AdoQuery properties. Or is the error most likely related to the database?