Hoang Ha's Blog

Check out the code below which creates the TabPanel dynamically and then add to the TabsContainer control.

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

List<Category> categories = Category.GetCategories();

foreach (Category category in categories)

{

GridView gv = new GridView();

gv.DataSource = category.Products;

gv.DataBind();

AjaxControlToolkit.TabPanel tab = new AjaxControlToolkit.TabPanel();

tab.Controls.Add(gv);

tab.HeaderText = category.CategoryName;

TabContainer1.Tabs.Add(tab);

} 

}

}

You can use the following code for initialial connect to database and builds methods to retrive data from database.

Here is the List Code:

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Collections.Generic;

using System.Data.SqlClient;

public class Category

{

   private int categoryID;

   private string categoryName;

   private List<Product> products;

   public int CategoryID

   {

       get { return this.categoryID; }

       set { this.categoryID = value; }

   }

   public string CategoryName

   {

       get { return this.categoryName; }

       set { this.categoryName = value; }

   }

   public List<Product> Products

   {

       get { return this.products; }

       set { this.products = value; }

   }

   public static  List<Category> GetCategories()

   {

       List<Category> categories = new List<Category>();

       string connectionString = @"Server=localhost;Database=Northwind;Trusted_Connection=true";

       SqlConnection myConnection = new SqlConnection(connectionString);

       SqlCommand myCommand = new SqlCommand("SELECT CategoryID, CategoryName FROM Categories", myConnection);

       myConnection.Open();

       SqlDataReader reader = myCommand.ExecuteReader();

       while (reader.Read())

       {

           Category category = new Category();

           category.CategoryID = (int)reader["CategoryID"];

           category.CategoryName = (string)reader["CategoryName"];

           categories.Add(category);

       }

       myConnection.Close();

       reader.Close();

       // get the products

       foreach (Category category in categories)

       {

           category.Products = GetProducts(category.CategoryID);  

       }

       return categories;

   }

   public static List<Product> GetProducts(int categoryID)

   {

       List<Product> products = new List<Product>();

       string connectionString = @"Server=localhost;Database=Northwind;Trusted_Connection=true";

       SqlConnection myConnection = new SqlConnection(connectionString);

       SqlCommand myCommand = new SqlCommand("SELECT ProductID, ProductName FROM Products WHERE CategoryID = " + categoryID,myConnection);

       myConnection.Open();

       SqlDataReader reader = myCommand.ExecuteReader();

       while (reader.Read())

       {

           Product product = new Product();

           product.ProductID = (int)reader["ProductID"];

           product.ProductName = (string)reader["ProductName"];

           products.Add(product);

       }

       myConnection.Close();

       reader.Close();

       return products;

   }

public Category()

{

}

}

ANd Product.cs:

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public class Product

{

   private int productID;

   private string productName;

   public int ProductID

   {

       get { return this.productID; }

       set { this.productID = value; }

   }

   public string ProductName

   {

       get { return this.productName; }

       set { this.productName = value; }

   }

public Product()

{

}

}

Hope this helps.