Application.Lock() (VB) : Application « Development « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. Development
  3. Application
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      The page has been requested
      <asp:Label ID="myLabel" runat="server" />
      times!
    </div>
    </form>
</body>
</html>

File: Default.aspx.vb


Partial Class _Default
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles Me.Load
        If Application("PageCounter") >= 10 Then
            Application.Remove("PageCounter")
        End If
        If Application("PageCounter") Is Nothing Then
            Application("PageCounter") = 1
        Else
            Application.Lock()
            Application("PageCounter") += 1
            Application.UnLock()
        End If
        myLabel.Text = Application("PageCounter")
    End Sub
End Class








9.1.Application
9.1.1.Basic Application Events
9.1.2.Save value to Application
9.1.3.Displaying a count of user sessions.
9.1.4.Lock the Application object
9.1.5.Application.Lock() (VB)
9.1.6.Application.Add
9.1.7.Application.AllKeys
9.1.8.Application.Clear()
9.1.9.Application.Count
9.1.10.Application.Get
9.1.11.Application.GetKey
9.1.12.Application.Item
9.1.13.Application.Keys
9.1.14.Application.UnLock()
9.1.15.Application.Remove
9.1.16.Application.RemoveAll()
9.1.17.Application.RemoveAt
9.1.18.Application.Set