[Asp.net]Understand profile
Detailed introduction on asp.net 2.0 feature: profile, from how to access it in code both in anonymous and authenticated condition and sql provider for storage, also cover the report part for managibility.
Here is the URL: http://msdn.microsoft.com/asp.net/default.aspx?pull=/library/en-us/dnvs05/html/UserProfiles.asp
Enjoy! :)
A few code piece for quick reference:
1. Add your type to the web.config
<configuration>
<system.web>
<anonymousIdentification enabled="true" />
<profile>
<properties>
<add
name="ShoppingCart"
type="ShoppingCart"
serializeAs="Binary"
allowAnonymous="true" />
</properties>
</profile>
</system.web>
</configuration>
2. Define your type
using System;
using System.Collections;
[Serializable]
public class ShoppingCart
{
public Hashtable _CartItems = new Hashtable();
// Return all the items from the Shopping Cart
public ICollection CartItems
{
get { return _CartItems.Values; }
}
// The sum total of the prices
public decimal Total
{
get
{
decimal sum = 0;
foreach (CartItem item in _CartItems.Values)
sum += item.Price * item.Quantity;
return sum;
}
}
// Add a new item to the shopping cart
public void AddItem(int ID, string Name, decimal Price)
{
CartItem item = (CartItem)_CartItems[ID];
if (item == null)
_CartItems.Add(ID, new CartItem(ID, Name, Price));
else
{
item.Quantity++;
_CartItems[ID] = item;
}
}
// Remove an item from the shopping cart
public void RemoveItem(int ID)
{
CartItem item = (CartItem)_CartItems[ID];
if (item == null)
return;
item.Quantity--;
if (item.Quantity == 0)
_CartItems.Remove(ID);
else
_CartItems[ID] = item;
}
}
[Serializable]
public class CartItem
{
private int _ID;
private string _Name;
private decimal _Price;
private int _Quantity = 1;
public int ID
{
get { return _ID; }
}
public string Name
{
get { return _Name; }
}
public decimal Price
{
get { return _Price; }
}
public int Quantity
{
get { return _Quantity; }
set { _Quantity = value; }
}
public CartItem(int ID, string Name, decimal Price)
{
_ID = ID;
_Name = Name;
_Price = Price;
}
}
3. How to access it in your code:
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Globalization" %>
<script runat="server">
void Page_Load() {
if (!IsPostBack)
BindShoppingCart();
}
void BindShoppingCart()
{
if (Profile.ShoppingCart != null)
{
CartGrid.DataSource = Profile.ShoppingCart.CartItems;
CartGrid.DataBind();
lblTotal.Text = Profile.ShoppingCart.Total.ToString("c");
}
}
void AddCartItem(Object s, EventArgs e)
{
GridViewRow row = ProductGrid.SelectedRow;
int ID = (int)ProductGrid.SelectedDataKey.Value;
String Name = row.Cells[1].Text;
decimal Price = Decimal.Parse(row.Cells[2].Text,
NumberStyles.Currency);
if (Profile.ShoppingCart == null)
Profile.ShoppingCart = new ShoppingCart();
Profile.ShoppingCart.AddItem(ID, Name, Price);
BindShoppingCart();
}
void RemoveCartItem(Object s, EventArgs e)
{
int ID = (int)CartGrid.SelectedDataKey.Value;
Profile.ShoppingCart.RemoveItem(ID);
BindShoppingCart();
}
</script>
<html>
<head>
<title>Products</title>
</head>
<body>
<form id="form1" runat="server">
<table width="100%">
<tr>
<td valign="top">
<h2>Products</h2>
<asp:GridView
ID="ProductGrid"
DataSourceID="ProductSource"
DataKeyNames="ProductID"
AutoGenerateColumns="false"
OnSelectedIndexChanged="AddCartItem"
ShowHeader="false"
CellPadding="5"
Runat="Server">
<Columns>
<asp:ButtonField
CommandName="select"
Text="Buy" />
<asp:BoundField
DataField="ProductName" />
<asp:BoundField
DataField="UnitPrice"
DataFormatString="{0:c}" />
</Columns>
</asp:GridView>
<asp:SqlDataSource
ID="ProductSource"
ConnectionString=
"Server=localhost;Database=Northwind;Trusted_Connection=true;"
SelectCommand=
"SELECT ProductID,ProductName,UnitPrice FROM Products"
Runat="Server" />
</td>
<td valign="top">
<h2>Shopping Cart</h2>
<asp:GridView
ID="CartGrid"
AutoGenerateColumns="false"
DataKeyNames="ID"
OnSelectedIndexChanged="RemoveCartItem"
CellPadding="5"
Width="300"
Runat="Server">
<Columns>
<asp:ButtonField
CommandName="select"
Text="Remove" />
<asp:BoundField
DataField="Name"
HeaderText="Name" />
<asp:BoundField
DataField="Price"
HeaderText="Price"
DataFormatString="{0:c}" />
<asp:BoundField
DataField="Quantity"
HeaderText="Quantity" />
</Columns>
</asp:GridView>
<b>Total:</b>
<asp:Label ID="lblTotal" Runat="Server" />
</td>
</tr>
</table>
</form>
</body>
</html>
4.On how to play with authenticated profile:
<%@ Page Language="C#" %>
<script runat="server">
void Login(Object s, EventArgs e)
{
FormsAuthentication.SetAuthCookie("Bill", false);
Response.Redirect(Request.Path);
}
void Logout(Object s, EventArgs e)
{
FormsAuthentication.SignOut();
Response.Redirect(Request.Path);
}
void UpdateProfile(Object s, EventArgs e)
{
Profile.FavoriteColor = txtFavoriteColor.Text;
}
void Page_PreRender()
{
lblUsername.Text = Profile.UserName;
lblFavoriteColor.Text = Profile.FavoriteColor;
}
</script>
5. Migrating the info in the anonymous mode to authenticated mode
This magic lies in Global.asax (C#)
<%@ Application Language="C#" %>
<script runat="server">
void Profile_MigrateAnonymous(Object s,
ProfileMigrateEventArgs e)
{
ProfileCommon anonProfile =
Profile.GetProfile(e.AnonymousId);
Profile.FavoriteColor = anonProfile.FavoriteColor;
}
</script>
6. Config to use MSSQL provider for storage
step1: run the script comes with the .net framework: aspnet_regsql and it is located in your Windows\Microsoft.NET\Framework\[version] folder.
step 2: Update your web.config looks like this:<configuration>
<connectionStrings>
<add
name="myConnectionString"
connectionString=
"Server=MyServer;Trusted_Connection=true;database=MyDatabase" />
</connectionStrings>
<system.web>
<anonymousIdentification enabled="true" />
<profile defaultProvider="MyProfileProvider">
<providers>
<add
name="MyProfileProvider"
type="System.Web.Profile.SqlProfileProvider"
connectionStringName="myConnectionString" />
</providers>
<properties>
<add
name="FirstName"
allowAnonymous="true" />
<add
name="LastName"
allowAnonymous="true" />
</properties>
</profile>
</system.web>
</configuration>
7. Delete inactive profile:
using System;
using System.Web.Profile;
public class DeleteInactiveProfiles
{
public static void Main()
{
int deleted = 0;
deleted =
ProfileManager.DeleteInactiveProfiles(
ProfileAuthenticationOption.All,
DateTime.Now.AddDays(-7));
Console.WriteLine("Deleted " +
deleted.ToString() + " profiles" );
}
}
8 Get stored profile information:
<%@ Page Language="C#" %>
<script runat="server">
void SaveSurvey(Object s, EventArgs e)
{
Profile.FavoriteLanguage = rdlLanguage.SelectedItem.Text;
Profile.FavoriteEnvironment = rdlEnvironment.SelectedItem.Text;
Profile.SurveyCompleted = true;
}
void Page_PreRender()
{
if (Profile.SurveyCompleted)
{
pnlSurvey.Visible = false;
pnlSurveyCompleted.Visible = true;
}
else
{
pnlSurvey.Visible = true;
pnlSurveyCompleted.Visible = false;
}
}
</script>
<html>
<head>
<title>Survey</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Panel ID="pnlSurvey" Runat="Server">
What is your favorite programming language?
<br />
<asp:RadioButtonList
id="rdlLanguage"
runat="Server">
<asp:ListItem Text="VB.NET" Selected="True" />
<asp:ListItem Text="C#" />
<asp:ListItem Text="J#" />
</asp:RadioButtonList>
<p> </p>
What is your favorite development environment?
<br />
<asp:RadioButtonList
id="rdlEnvironment"
runat="Server">
<asp:ListItem Text="VS.NET" Selected="True" />
<asp:ListItem Text="Web Matrix" />
<asp:ListItem Text="Notepad" />
</asp:RadioButtonList>
<p> </p>
<asp:Button ID="Button1"
Text="Submit Survey"
Onclick="SaveSurvey"
Runat="Server" />
</asp:Panel>
<asp:Panel ID="pnlSurveyCompleted" Runat="Server">
Thank you for completing the survey!
</asp:Panel>
</form>
</body>
</html>
