understanding IsPostBack Property

Question

Hi there,

 

I am C# newbie.I need to use IsPostBack Property on my web site but I have understanding issues with it. now after exploring the web, I found that the ist page is loaded as get request but when I click again on the link of the same page so this will be a postback. so what I did is to put IsPostBack property on that page load event as follows

if (!IsPostBack)
{
Response.Wriet("page loaded for the first time");
}
esle
{
Response.Wriet("page is not loaded for the first time");
}

Now the above code when run for the first time so it is ok and work fine but when i click a link of the same page even again and again so I am getting the message" page loaded for the first time". what i thin that it should display the other message as the page is being posted back

 

please help in this regard what concept I am missing

Regards