ASP.Net Page Life Cycle

Hello friends,

I know this information is easily available over the net. However I just thought to share it on my blog just for quick reference. Here I have written ASP.Net page life cycle events in an order of there execution with one liner explanation.
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
public partial class Home : System.Web.UI.Page
    {
        protected void Page_PreInit(object sender, EventArgs e)
        {
            //Initialize themes, master page, profile properties
            //check IsPostBack, cross-page postbacks
            System.Diagnostics.Trace.WriteLine("Inside Page_PreInit");
        }

        protected void Page_Init(object sender, EventArgs e)
        {
            //Initialize or read control properties here
            System.Diagnostics.Trace.WriteLine("Inside Page_Init");
        }

        protected void Page_InitComplete(object sender, EventArgs e)
        {
            // Changes to ViewState that you want in next postback
            System.Diagnostics.Trace.WriteLine("Inside Page_InitComplete");
        }

        protected void Page_PreLoad(object sender, EventArgs e)
        {
            //Raised when page loads ViewState for itself and controls
            System.Diagnostics.Trace.WriteLine("Inside Page_PreLoad");
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            //Set control properties, initiate Database connections
            System.Diagnostics.Trace.WriteLine("Inside Page_Load");
        }

        protected void Page_LoadComplete(object sender, EventArgs e)
        {
            //tasks that require that all other controls on the page be loaded.
            System.Diagnostics.Trace.WriteLine("Inside Page_LoadComplete");
        }

        protected void Page_Prerender(object sender, EventArgs e)
        {
            //to make final changes to the contents of the page or its
            //controls before the rendering stage begins
            System.Diagnostics.Trace.WriteLine("Inside Page_Prerender");
        }
        protected void Page_PrerenderComplete(object sender, EventArgs e)
        {
            //Raised after each data bound control whose 
            //DataSourceID property is set calls its DataBind method.
            System.Diagnostics.Trace.WriteLine("Inside Page_PrerenderComplete");
        }
        protected void Page_SaveStateComplete(object sender, EventArgs e)
        {
            //Raised after view state and control state have been saved for the page and for all controls.
            //Any changes to the page or controls at this point affect rendering, but the changes will not be retrieved on the next postback
            System.Diagnostics.Trace.WriteLine("Inside Page_SaveStateComplete");
        }
        protected void Page_Render(object sender, EventArgs e)
        {
            //This is not an event; instead, at this stage of processing, the Page object calls this method on each control
            System.Diagnostics.Trace.WriteLine("Inside Page_Render");
        }
        protected void Page_Unload(object sender, EventArgs e)
        {
            //Raised for each control and then for the page.
            //During the unload stage, the page and its controls have been rendered, so you cannot make further changes to the response stream. 
            //If you attempt to call a method such as the Response.Write method, the page will throw an exception.
            System.Diagnostics.Trace.WriteLine("Inside Page_Unload");
            //Response.Write("This is not allowed");
        }
    }

No comments:

Post a Comment

Labels

.net .Net Instrumentation logging .net localization Agile amazon amazon elasticache amazon services AppDomain Application Domain architecture asp ASP.Net authentication authentication mechanisms Byte order mark c# cache canvas app cdata certifications class classic mode cloud cloud computing cluster code-behind Combobox compilation Configuration providers configurations connection connectionString constructors control controls contructor CSV CTS .net types conversion database DataGridView DataSource DataTable DataType DBML delegates design pattern dispose double encoding Entity framework Events exception handling expiry fault contracts fault exceptions function pointers functions generics help HostingEnvironmentException IIS inner join instance management integrated mode javascript join left outer join LINQ LINQ join LINQ to SQL memory leak methods microsoft model driven app modes in IIS MSIL multiple catch blocks no primary key Nullable Osmos Osmotic Osmotic communication Osmotic communications page events page life cycle partial class PMI powerapps preserve precision points private contructor ProcessExit Project management properties property protect connectionString providerName providers query regular expression repository Responsive Web Design return type run-time RWD Saas self join session session expiry sessions singelton singleton pattern software as a service source control system SQLMetal string time management time-boxing toolstrip ToolStrip controls ToolStripControlHost tortoise SVN ToString() try catch finally update wcf web application web design web site web.config where-clause xml

Pages