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Gridview editing updating deleting in asp net
In previous post we discussed how to create 3 – tier architecture application using c#.we already discussed about 3 – tier architecture layers Presentation Layer, Business Logic Layer and Data Access Layer.Now, In this article i will explain you how to bind data to gridview and edit, update, delete data in gridview in using 3 – tier architecture. Net web application First open the visual studio and create a new web application.
The first column is ID which is identification of user, so it must be unique.
Here we set ID column Primary Key and Auto Increment by updating the ID column property.
After creating new table create new stored procedure for Insert records, Select records, Update and Delete records.
Stored Procedure for SELECT set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[USERMST_INSERT] @NAME AS NVARCHAR(256), @ADD AS NVARCHAR(256), @CITY AS NVARCHAR(256), @EMAIL AS NVARCHAR(256) AS BEGIN INSERT INTO USERMST VALUES (@NAME,@ADD,@CITY,@EMAIL) END set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[USERMST_UPDATE] @ID AS INT, @NAME AS NVARCHAR(256), @ADD AS NVARCHAR(256), @CITY AS NVARCHAR(256), @EMAIL AS NVARCHAR(256) AS BEGIN UPDATE USERMST SET [email protected], [email protected], [email protected], [email protected] WHERE [email protected] END Now, we all know as write sql connection code in data access layer.
There are many methods developer uses for sql connectivity. first using Data Set and second using Data Adapter.
STEP 5 : Connection with Data Set using Different connection method let’s try with first method using Data Set.Create new Data Set in Data Layer Class Library project and bind select and insert stored procedure in Data Set.Data Layer – Finish above dataset wizard with bind select, insert, update and delete stored procedure with it. Page – When we click Edit button we have screen like below with Update and Cancel Button, and all the value of that row are in textbox so we can modify and click update button to update record in database.After binding all stored procedure we have connection string in web.config file. Web Controls; using Business Layer; public partial class _Default : System. STEP 6 : write code in Data Access Layer In above we have used Data Set method for sql connectivity. Now, let’s create Business logic layer for use all data access method of user select, insert, update and delete. STEP 7 : Create Business Logic Layer (BLL) Repeat same process as we created Data Access layer. Here creating new class library project named “Businees Layer”. After importing references create data layer class object in business logic layer class. write code in business layer for communicate data layer and presentation layer. first import namespace using Data Layer; using System; using System.