Radio button list malfunction - asp.net

Question

How can I check if a radio button inside a radio button list is checked?
I used if radiobuttonlist1.selectedindex > -1 and then I checked a radio button, but it is not reading the selected radio button, it is always going to the else statement.
this is my code:
Dim rl1 As RadioButtonList = New RadioButtonList()
If rbl1.SelectedIndex > -1
Label2.Text = "Checked"
Else
Label2.Text = "Not Checked"
End If

Answer 1

You can do this.
Go to your RadioButton_CheckedChanged event and add this code
If RadioButton1.Checked = True Then
Me.Label1.Text = "Checked"
Else
Me.Label1.Text = "UnChecked"
End If

Answer 2

Are you using the correct variable name in your code? You are declaring rl1 but validating rbl1. If it's not the case, check if the following code helps:
Dim rl1 As RadioButtonList = New RadioButtonList()
'Just adding some items and selecting one of them for demonstration
rl1.Items.Add(New ListItem("Option 1", "1"))
rl1.Items.Add(New ListItem("Option 2", "2"))
rl1.SelectedIndex = 1
If rl1.SelectedIndex > -1 Then
MsgBox("Checked")
Else
MsgBox("Not Checked")
End If

Answer 3

Dim rl1 As RadioButtonList = New RadioButtonList()
So you created the above? How does the above know or have anything to do with the web page? There is zero relationship between some variable you create in code as opposd to the controls you have on the web page?
You want
MyRadioButtonOnTheWebPage.Selectedindex
Probably this:
RadioButtonList1.Selected index.
So, you would not out of the blue create + dim some variable that has nothing to do with the actual Radio button list on the actual web page. I mean, if you have 3 RadioButton lists on your web page, which one does the above refer to?
So, if you have a Radiobuttion list "1" like this:
<asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True"
RepeatDirection="Horizontal">
<asp:ListItem>One</asp:ListItem>
<asp:ListItem>Tow</asp:ListItem>
<asp:ListItem>Three</asp:ListItem>
</asp:RadioButtonList>
Then either a button postback, or EVEN say set the autopostback = true for the radio button list.
Then in code you can use:
Debug.Print(RadioButtonList1.SelectedIndex)
Debug.Print(RadioButtonList1.SelectedValue)
So above would get the index value, or the actual value of the radio button.
And if you have auto postback = true, then you can/would use the event (changed) like this that will trigger when you choose/change the selection in the radio button
Protected Sub RadioButtonList1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles RadioButtonList1.SelectedIndexChanged
Debug.Print(RadioButtonList1.SelectedIndex)
Debug.Print(RadioButtonList1.SelectedValue)
End Sub