Is to use rzcombobox and other controls to select a conditional expression, press the add, add product description to Rzlistbox, product description can give users to see, but I don't like to let the user see value, and can be repeated to add more conditions, finally in the listbox generated combination conditions, should be how to write, or don't Rzlistbox can be substituted for other controls, what does it controls, write down the control values to read and write simple syntax,

CodePudding user response:

Use controls are generally value to the customer,

When submitting a query, according to the variable values to convert to query, and then assembled into SQL statements, check again,