Page_Init Event Occurs Twice but the message is printed only once ...Y?

Posted by Nkkppp under ASP.NET on 6/16/2012 | Points: 10 | Views : 2631 | Status : [Member] | Replies : 1

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1) When we run the below code message within Page_Init event is raised once.
2) During the button click event...again the Page_Init event is raised but the message is not printed...Y??

namespace eventdemo
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
lblmessage.Text += "Page load event handled. ";
if (Page.IsPostBack)
{
lblmessage.Text += "Page post back event handled. ";
}
}
protected void Page_Init(object sender, EventArgs e)
{
lblmessage.Text += "Page initialization event handled. ";
}
protected void Page_PreRender(object sender, EventArgs e)
{
lblmessage.Text += "Page prerender event handled. ";
}
protected void btnclick_Click(object sender, EventArgs e)
{
lblmessage.Text += "Button click event handled. ";
}
}
}

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Posted by: Nkkppp on: 6/21/2012 [Member] Starter | Points: 25

0	Init event is called twice..but the message is overwritten. So,I have made a few changes to the above as below....and confirmed that Init event is called twice and message is printed protected void Page_Load(object sender, EventArgs e) { label2.Text = "pageload"; if (IsPostBack) { label5.Text = "postbackpageload"; } } protected void Page_Init(object sender, EventArgs e) { label1.Text = "Initialize"; if (IsPostBack) { label6.Text = "postbackInitialize"; } } protected void Page_PreRender(object sender, EventArgs e) { label3.Text = "render"; if (IsPostBack) { label7.Text = "postbackPrerender"; } } protected void btn_Click(object sender, EventArgs e) { label4.Text = "buttonclick"; } Nkkppp, if this helps please login to Mark As Answer. \| Alert Moderator

Init event is called twice..but the message is overwritten.

So,I have made a few changes to the above as below....and confirmed that Init event is called twice and message is printed

protected void Page_Load(object sender, EventArgs e)
{
label2.Text = "pageload";
if (IsPostBack)
{
label5.Text = "postbackpageload";
}
}
protected void Page_Init(object sender, EventArgs e)
{
label1.Text = "Initialize";
if (IsPostBack)
{
label6.Text = "postbackInitialize";
}
}
protected void Page_PreRender(object sender, EventArgs e)
{
label3.Text = "render";
if (IsPostBack)
{
label7.Text = "postbackPrerender";
}

}

protected void btn_Click(object sender, EventArgs e)
{
label4.Text = "buttonclick";

}

Nkkppp, if this helps please login to Mark As Answer. | Alert Moderator

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