Step 1) Do a little research.
Google[
^] is a good start point. You can find links like:
a)
1: Creating a Data Access Layer[
^],
2: Creating a Business Logic Layer[
^] and
3: Master Pages and Site Navigation[
^]
b)
Simple Sample with Entity Framework [
^]
c)
3-Tier-Architecture-in-asp.net-using-c/67931[
^]
d)
http://www.asp.net/web-form/tutorials/data-access[
^]
e)
Building3TierApp[
^]
Step 2) Start coding
Step 3) Compile and use the debug to solve little issues
Step 4) When you get a problem you don't know how to solve
but at least you tried it, then come back and ask for something concrete with a snippet of the code giving problems
Sorry if this is not the answer you were looking for. But your question is a bit too wide to be answered at the "Quick" Answers. It is better and you get faster help if you make 10 concrete questions about concrete problems, than a big question about a "how-to guide"
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