Well, it was a long time ago, but I cut my teeth in .NET with Jeffrey Richter's book (CLR via C# or whatever it is these days). Not long after that I did the .NET brainbench and scored so well that someone in a hedge fund noticed and called me out the blue to work for them, which I did. Brilliant book, so that's what I recommend.
The tests have no doubt moved on, but as I recall .NET was pretty easy in comparison to the C# one.
I add some items into the database in other to load in a combobox then trying to add items to the second combobox in other to act as a sub to the first combobox.. i found out that i would need to select an item from the first combobox before i can add items to the second combobox.. for instance i have "state" as my first combobox and in each state, there are local governments and i would have to select a particular state in other to enter the corresponding Local governments. as a result of this, i will be having more than one entry on my state column and when i try to use it from the user's end, when i select state, it will contain more than one entry for each state... is there a way i can reduce redundancy in the combobox.. please i need help with this
You can only select the second set of items based on the information provided by the first. If you need to reduce the number of items for a single state then you will have to add some other criteria to your application. This is a logic issue rather than a coding one.