CODEWITHSUNDEEP
asp.netvb.netcheckboxradio-button
Knowledge2Share
Knowledge2Share

Reputation: 103

Radio Button Check Changed even not firing

I've 2 radio buttons in a user control and control is registered to the page. When i click on the radio button, the event(CheckChanged) is not firing. 

<asp:View ID="viewfirst" runat="server">
                    <asp:UpdatePanel ID="updatepanel1" runat="server" UpdateMode="Always">
                        <ContentTemplate>

                            <asp:RadioButton ID="radio1" Text="Yes" Enabled="true" runat="server" />
                            <asp:RadioButton ID="radio2" Text="No" Enabled="true" runat="server" />
                        </ContentTemplate>
                    </asp:UpdatePanel>
                </asp:View>

Below is code in behind file of the control. 


 Protected Sub radio1_CheckedChanged(sender As Object, e As EventArgs) Handles radio1.CheckedChanged
    //
    //
End Sub

It seems everything looks good, but something is wrong. Can you please let me know.

Upvotes: 4

Views: 11598

Answers (2)

Abigail Mak
Abigail Mak

Reputation: 21

You have to set the event handler of each radio button to OnCheckChanged and put them in the same RadioGroup (GroupName) so they do not fire together. Remember to set AutoPostBack = true for each radio button. Set only one radioButton as checked = true. I can see your code has both checked. Something like this...

The aspx page:

<asp:RadioButton id="radioButton1" runat="server" GroupName="btnGrp" Text="Button 1" AutoPostBack="true" Checked="true" OnCheckedChanged="radioButton1_CheckedChanged"></asp:RadioButton>

<asp:RadioButton id="radioButton2" runat="server" GroupName="btnGrp" Text="Button 2" AutoPostBack="true" OnCheckedChanged="radioButton2_CheckedChanged"></asp:RadioButton>

The code-behind (aspx.cs) page:

protected void radioButton1_CheckedChanged(object sender, EventArgs e)
    {
        // Your code here
    }

protected void radioButton2_CheckedChanged(object sender, EventArgs e)
    {
        // Your code here
    }

Hope this helps!

Upvotes: 1

jelliaes
jelliaes

Reputation: 505

Set autopostback=true for checkbox - This will trigger the event

UpdateMode=conditional and ChildrenAsTriggers=false for the UpdatePanel - so when you trigger checkbox, it won't trigger full postback

Upvotes: 8

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