Hi

I am defining the anonymous method in asp.net page

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

public _Default()
{
btnTest.Click += delegate(object sender, EventArgs e)
{
Response.Write("HI");
};
}
}

Here btnTest is the name of a button

when I run this program I am getting error.



"Object Reference is not set to an instance of an object"



Regards

of course you will get that error , because page constructor called in a very early stage , and the button will bot be initialzed yet , even the Response object will not be ready !

instead you need to move the code to Page_Init , with some modifications to the paramters name to avoid the naming conflict as follows: