DataRow-States-and-DataRow-Versions


            File: App_Code\Product.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web;
using System.Web.Configuration;
public class Product
{
    private SqlDataAdapter dad = new SqlDataAdapter();
    public DataTable GetAll()
    {
        return (DataTable)HttpContext.Current.Session["ProductsToEdit"];
    }
    public void Update(int id, string title, string director)
    {
        DataTable products = (DataTable)HttpContext.Current.Session["ProductstoEdit"];
        DataRow rowToEdit = products.Rows.Find(id);
        rowToEdit["title"] = title;
        rowToEdit["director"] = director;
    }
    public void RejectChanges()
    {
        DataTable products = (DataTable)HttpContext.Current.Session["ProductstoEdit"];
        products.RejectChanges();
    }
    public void AcceptChanges()
    {
        DataTable products = (DataTable)HttpContext.Current.Session["ProductstoEdit"];
        dad.Update(products);
        products.AcceptChanges();    }
    public Product()
    {
        string connectionString = WebConfigurationManager.ConnectionStrings["Products"].ConnectionString;
        dad = new SqlDataAdapter("SELECT Id,Title,Director FROM Products", connectionString);
        SqlCommandBuilder builder = new SqlCommandBuilder(dad);
        dad.UpdateBatchSize = 0;
        HttpContext context = HttpContext.Current;
        if (context.Session["ProductsToEdit"] == null)
        {
            DataTable dtblProducts = new DataTable();
            dad.Fill(dtblProducts);
            dtblProducts.PrimaryKey = new DataColumn[] { dtblProducts.Columns["Id"] };
            context.Session["ProductsToEdit"] = dtblProducts;
        }
    }
}
File: Web.config

  
             connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  

File: ShowProduct.aspx
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    protected void btnReject_Click(object sender, EventArgs e)
    {
        Product product = new Product();
        product.RejectChanges();
        grdProducts.DataBind();
    }
    protected void btnAccept_Click(object sender, EventArgs e)
    {
        Product product = new Product();
        product.AcceptChanges();
        grdProducts.DataBind();
    }



    Show Product


    
    
    Edit Products

            id="grdProducts"
        DataSourceID="srcProducts"
        DataKeyNames="Id"
        AutoGenerateEditButton="true"
        Runat="server">
        
        
        
        <%# ((DataRowView)Container.DataItem).Row.RowState %>
        
        
        
    
    
            id="btnReject"
        Text="Reject Changes"
        OnClick="btnReject_Click"
        Runat="server" />
            id="btnAccept"
        Text="Accept Changes"
        OnClick="btnAccept_Click"
        Runat="server" />
            id="srcProducts"
        TypeName="Product"
        SelectMethod="GetAll"
        UpdateMethod="Update"
        Runat="server" />
ADO Net Database ASP.Net Tutorial

Edit Products
