DAY - 28-06-2003 l 3-tier architecture (TIER) 1. 3tier architecture provides three specific layer A. BussinessObject layer B. BussinessLogic layer C. DataAcess layer A. BussinessObject layer :- It only created data member as per database column. B. BussinessLogic Layer :- This layer only communicated with aspx page. C. DataAcess layer :- In this layer we work on database . l How to create 3 tier architecture? Step 1 :- create layer GO TO SOLUTION EXPLOSER -> RIGHT CLICK ON SOLUTION-------->CLICK ON NEW PROJECT ->SELECT CLASS LIBRARY (.NET FRAMEWORK)C# -> NAME OF LIBRARY. Step 2 :- create a class in each layer 1. BussinessLogic - classname=userBL. 2. BussinessObject - classname=userBO. 3. DataAccess-classname=userDA How to create a class :- Rightclick on the layer -> add class Step 3 - change all class to public which we made. All class is used for ...
· DATA CONTROL :- DATA CONTROL IS USED FOR REPORTING CONCEPT. · PROPERTY OF DATA CONTROL :- 1) DATA SOURCE – DR 2) DATA BIND – () · PROPERTY WITH NAME IS ERROR WHICH MEANS COLUMN NAME DOES NOT MATCH WITH GRID VIEW COLUMN. THERE ARE FOLLWING DATA CONTROL 1) GRID VIEW :- A) DISPLAY DATA IN TABULAR FORMAT B) GRID VIEW INDEX STARTING FROM 0----N . C) GRID VIEW IMPLEMENTATION a. BASIC BINDING – STEP = SEARCH GRID VIEW à CLICK ARROW à EDIT COLUMN à SELECT BOUND FIELD à ADD PROPERTY OF BOUND FIELD 1) HEADERTEXT 2) DATAFIELD – NAME OF COLUMN HOW TO REMOVE EXTRA COLUMN AUTO GENERATE CHECKBOX UNSELECT. Ø CODE OF BASIC BINDING Ø //OPEN CONNECTION Ø string PATH = @...
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