Add events to custom Web controls (front and back-end code)

------------ MyRegister1.ascx front-end code -----------
Copy codeThe Code is as follows:
<Script src = "js/Jquery1.7.js" type = "text/javascript"> </script>
<Script type = "text/javascript">
Function Register (){
If ($ ('# myregisterpolictxtusername'). val () = ''){
$ ('# Spanusername'). text ('enter your username ');
Return false;
}
If ($ ('# myregister=txtpwd'). val () = ''){
$ ('# Spanpwd'). text ('Enter the password ');
Return false;
}
If ($ ('# myregister=txtpwd1'). val () = ''){
$ ('# SpanPwd1'). text ('Enter the password ');
Return false;
}
If ($ ('# myregister=txtpwd1'). val ()! = $ ('# Myregister=txtpwd'). val ()){
$ ('# SpanPwd1'). text ('two passwords must be consistent ');
Return false;
}
If ($ ('# myregister=txtemail'). val () = ''){
$ ('# SpanEmail'). text ('enter your mailbox ');
Return false;
}
Return true;
}
</Script>
<Table>
<Tr>
<Td> User name: </td>
<Td>
<Asp: TextBox ID = "txtUserName" runat = "server"> </asp: TextBox> </td>
<Td> <span id = "spanUserName"> </span> </td>
</Tr>
<Tr>
<Td> password: </td>
<Td>
<Asp: TextBox ID = "txtPwd" runat = "server"> </asp: TextBox> </td>
<Td> <span id = "spanPwd"> </span> </td>
</Tr>
<Tr>
<Td> Confirm Password: </td>
<Td>
<Asp: TextBox ID = "txtPwd1" runat = "server"> </asp: TextBox> </td>
<Td> <span id = "spanPwd1"> </span> </td>
</Tr>
<Tr>
<Td> Email: </td>
<Td>
<Asp: TextBox ID = "txtEmail" runat = "server"> </asp: TextBox> </td>
<Td> <span id = "spanEamil"> </span> </td>
</Tr>
<Tr>
<Td> </td>
<Td>
<Asp: Button ID = "btnRegister" runat = "server" Text = "register"
Onclick = "btnRegister_Click" OnClientClick = "return Register ()"/> </td>
<Td>
<Asp: Label ID = "Label1" runat = "server" Text = ""> </asp: Label>
</Td>
</Tr>
</Table>

------------ MyRegister1.ascx background code ------------
Copy codeThe Code is as follows:
Public partial class myRegister: System. Web. UI. UserControl
{
Public event MyRegeitserDelegate On_MyRegister;
Protected void Page_Load (object sender, EventArgs e)
{
}
Protected void btnRegister_Click (object sender, EventArgs e)
{
If (On_MyRegister! = Null)
{
MyRegister. userName = txtUserName. Text;
MyRegister. pwd = txtPwd. Text;
MyRegister. email = txtEmail. Text;
On_MyRegister ();
If (MyRegister. isBool = true)
{
Label1.Text = "successfully registered ";
}
Else
{Label1.Text = "registration failed ";}
}
}
}
Public class MyRegister
{
Public static string userName {set; get ;}
Public static string pwd {set; get ;}
Public static string email {set; get ;}
Public static bool isBool {set; get ;}
}
Public delegate void MyRegeitserDelegate ();

--------- No parameter for the WebForm event. aspx front-end code --------------
Copy codeThe Code is as follows:
<Uc1: myRegister ID = "myRegister1" runat = "server"/>

--------- No parameter for the WebForm event. aspx background code ---------------
Copy codeThe Code is as follows:
Public partial class WebForm event without parameter: System. Web. UI. Page
{
Protected void Page_Load (object sender, EventArgs e)
{
This. myRegister1.On _ MyRegister + = new MyRegeitserDelegate (myregisterpolicon_myregister );
}
Void myregisterpolicon_myregister ()
{
MyRegister. isBool = writer (MyRegister. userName, MyRegister. pwd, MyRegister. email );
}
Private bool writer (string userName, string pwd, string email)
{
Using (Stream stream = File. Open (@ "E: \ new.txt", FileMode. Append, FileAccess. Write ))
{
Using (StreamWriter writer = new StreamWriter (stream ))
{
Writer. WriteLine ("userName: {0}, password: {1}, email: {2}", userName, pwd, email );
}
}
Return true;
}
}