I have a web form with two radio buttons and a submit button on it. I am inheriting this web form from BasePage. On my baase page, I have the following method:

```
protected override void RaisePostBackEvent(IPostBackEventHandler sourceControl,string eventArgument)
    {
        // here is the control that caused the postback
        var postBackControl = sourceControl;

        base.RaisePostBackEvent(sourceControl, eventArgument);
    }

```

when I click on any radio button and then submit button, I tried to inspect the value of postBackControl in debug mode, I get submit value in postbackcontrol. Below is the image:

[![enter image description here](https://i.stack.imgur.com/G5AN4.png)](https://i.stack.imgur.com/G5AN4.png)

Is their any way, I can find out which radio button has been clicked in this base page.

My radio buttons on the web form are like so:

```
                 <asp:RadioButton ID="rdbEng1"  runat="server" Text="English"  GroupName="lang"   />
                  <asp:RadioButton ID="rdbspan1"  runat="server" Text="Español"  GroupName="lang"  />
                  <asp:Button runat="server" Text="Submit" OnClick="Submit_Click"   />

```

I tried to do Request.Form["rdbEng1"] in method RaisePostBackEvent, but the value is always null. The reason, I want to see which radio button is checked in the base class is because I want to set the language based on users selection. I have this method in my base class called :

```
   protected  override void InitializeCulture()
        {
           //Set the Culture.
            Thread.CurrentThread.CurrentCulture = new CultureInfo(language);
            Thread.CurrentThread.CurrentUICulture = new CultureInfo(language);
         }

```

If I set the culture in the button submit event of the web form then it does not convert all the lines on my page to another language, but if I set the language in my base class then all the lines on my web page are converted to another language.This is the line that is not getting converted to a different language:

```
<asp:RadioButton  ID="rdbtest" AutoPostBack="true"  runat="server" Text="<%$Resources:Resource1, Informational %>"

```

Any help will be appreciated.