For the ease of understanding, I have created BAL, DAL into the App_Code folder. pre 2) Can you post other similar article with Ajax? Because in practice we expect the delete to be performed with confirmation and also in details screen. Add new / Edit in 2 different tab panels - to have better usability. Regards, Sreedhar Thanks Vansree for your suggestions. Regarding pre class, I will let the webmaster know about it. As far as article on Ajax is concerned, I will try my best to post few articles on Ajax in coming days. Regards This is simpler example for 3-Tier Architecture.In real scenario, you should create separate projects for BAL, DAL (as Class Library) and UI (as Web project) and reference your BAL into UI. I wonder if you can come up with the same but using Ajax Tabs. Like having add button in Grid View will switch you to Tab Panel (Add new) and then perform the add ... But would like to see if you can come up with Tabs and your example above. I have one question about passing the data between layers.Grid View control is one of the most powerful controls in ASP. This control displays database records in typical tabular form, and provides features such as Sorting, Paging, Selection and Editing without writing a single line of code. It also has many different types of fields (columns) such as hyperlinks, images, checkboxes etc. To String()) Dim Product ID As String = Grid View1. The most important thing for me is to get the index of the row on which the button was clicked.please try to reply. I am trying to fill a 2nd grid view using input parameters including data from the 1st grid view rows using a stored procedure when the button in that row is clicked. I got a string object conversion when with the following lineint current Row Index = Int32. Command Argument); The fix is as below and then worked fine.
By combining these controls, you can easily set up master-detail views using very little code and sometimes no code at all.
Download source code for 3-Tier Architecture in ASP. Seperation - the functionality is seperated from the data access and presentation so that it is more maintainable 2.
NET with C# 3-Tier architecture generally contains UI or Presentation Layer, Business Access Layer (BAL) or Business Logic Layer and Data Access Layer (DAL). Independence - layers are established so that if one is modified (to some extent) it will not affect other layers. Reusability - As the layers are seperated, it can exist as a module that can be reused by other application by referencing it.
3-Tier architecture is a very well know buzz word in the world of software development whether it web based or desktop based. Below is the code for BAL (Your can overwrite your default written code for the class file by pasting this code). You can also navigate to another page your created (list.aspx) and try updating, deleting records.
In this article I am going to show how to design a web application based on 3-tier architecture. Code for Business Access Layer using System; using System. By using 3-Tier architecture in your project you can achive 1.
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Grid View control Row Command event will give you the Product ID of the product from the Grid View Rows when user will click any of the button in the Grid View. To handle click event of the buttons in Grid View you need to handle Row Command event of the Grid View control.