[derived-class] Forum Topics

I have vb.net application with MDF-Sql database. I retrieves data from Table in MDF-Sql into datagridview by TableAdaptermanager/binding navifator. Although it displays data but when I want to save by this code, its not working.This code is working in vb.net with OleDb application but not here. Is there any another …

this program is simply for recording data of various staffs.Inheritance has been used for taking additional data.Staff is the base class.the classes officer,typist and teacher are the derived classes.again the classes regular and casual are derived from the class typist. **now my problem is that whenever i call the constructor …

I have a base class called Matrix which has a function transpose. I also have a derived class Matrix2 which is inherited publicly from Matrix class Matrix { public: Matrix(); ... Matrix Transpose(void); ... }; class Matrix2 : public Matrix { public: Matrix2(); ... }; In my main code, I …

Here are 6 files I've been beating my head against the floor for about 20 hours now. I know I am sooooo close, but I just can't seem to find much information about overloading operators in a derived class to perform arithmetic operations on objects created in the base class. …

Greetings, I'm working on an existing solution. The solution is using a GUI inheritance technique. All Forms within the solution inherite from a parent Form. Within the parent Form there is a virtual method with empty body that is called in the parent Form load event. Each Form override that …

First of all, I'm 17 learning C++ on my own! I've been enjoying Daniweb. and I did like to thank the community for that! Thank you all! Here goes my Problem... I have a small program that calculates time between two instances and it worked fine... so I decided to …