handling and capturing Events and delegates in VB.net

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VB

ASP.NET

Hi Guys,

I have a user control in which I have a drop down. I want to handle the selected index change of this drop down in my parent page. I tried with some test application and I was succesfull to capture the click of a button using events and delegates, however that was in C#.
Now I need to do the same but in VB.net plus the control is drop down instead of button in user control.
I succeeded so far for creating my events and delegates however, I am not able to see the handler accociated with my user control's drop down in the intellisense which i will make use for capturing the event. Here is my code for my User Control :

Public Delegate Sub IndexChangedEventHandler(strValue As String)
    Public Event IndexChanged As EventHandler

    Protected Sub ddlTemp_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlTemp.SelectedIndexChanged
        Dim str As String
        str = ddlTemp.SelectedItem.Text 
        RaiseEvent IndexChanged(Me, New EventArgs())
    End Sub 

Here is my Parent page code behind

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

        uc1.IndexChanged += New WebUserControl1.IndexChangedEventHandler(hndle_index)

    End Sub

    Sub hndle_index(ByVal str As String)
        Response.Write(str)
    End Sub

.

I am getting these errors and I am not sure how to proceed:
1.

Error   1   'Public Event IndexChanged(strValue As String)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event. D:\Taresh\POCS\ucInvokingVB\ucInvokingVB\Default.aspx.vb    6   9   ucInvokingVB

2.

Error   2   Delegate 'ucInvokingVB.WebUserControl1.IndexChangedEventHandler' requires an 'AddressOf' expression or lambda expression as the only argument to its constructor.   D:\Taresh\POCS\ucInvokingVB\ucInvokingVB\Default.aspx.vb    6   74  ucInvokingVB

Please Help ! Thanx a lot !