<asp:RadioButtonList get value in the code behind

In code behind you have :

rblSeguimientoCritica.SelectedValue

and

rblInovacionFundada.SelectedValue

If you want to get at client side, use :

function getSelectedValue(rbListName) {
        var inputs = document.forms[0].getElementsByTagName("input");
        for (var i = 0; i < inputs.length; i++) {
            if ( inputs[i].name.indexOf(rbListName)>=0 && inputs[i].type == "radio" && inputs[i].checked) return inputs[i].value;
        }
    }

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example of using :

<table>
<tr class="TableItemAltFirst">
                <td class="style4">Seguimiento o crítica fundada en los precedentes. Universalidad.</td>
                <td>
                    <asp:RadioButtonList ID="rblSeguimientoCritica" runat="server" RepeatDirection="Horizontal" >
                        <asp:ListItem>1</asp:ListItem>
                        <asp:ListItem>2</asp:ListItem>
                        <asp:ListItem>3</asp:ListItem>
                        <asp:ListItem>4</asp:ListItem>
                    </asp:RadioButtonList>
                </td>            
            </tr>
            <tr class="TableItemAltSecond">
                <td class="style4">Innovación fundada en la interpretación creativa, posible y razonable del derecho, o del ordenamiento jurídico.</td>
                <td>
                    <asp:RadioButtonList ID="rblInovacionFundada" runat="server" RepeatDirection="Horizontal" >
                        <asp:ListItem>1</asp:ListItem>
                        <asp:ListItem>2</asp:ListItem>
                        <asp:ListItem>3</asp:ListItem>
                        <asp:ListItem>4</asp:ListItem>
                    </asp:RadioButtonList>
                </td>          
            </tr>
            </table>
<script language="javascript" type="text/javascript">
    function checkRadioIsSet() {
        var inputs = document.forms[0].getElementsByTagName("input");
        var allForEachGroupIsChecked = true;
        for (var i = 0; i < inputs.length; i++) {
            if (inputs[i].type == "radio") {
                var oneIsChecked = false;
                var lastName = inputs[i].name;
                while (lastName == inputs[i].name) {
                    if (inputs[i].checked) oneIsChecked = true;
                    i++;
                }
                i--;
                allForEachGroupIsChecked = allForEachGroupIsChecked && oneIsChecked;
            }
        }
        if (allForEachGroupIsChecked) {
            return allForEachGroupIsChecked;
        }
        else {
            alert("choose an answer for all questions!");
            return allForEachGroupIsChecked;
        }
    }
    function getSelectedValue(rbListName) {
        var inputs = document.forms[0].getElementsByTagName("input");
        for (var i = 0; i < inputs.length; i++) {
            if ( inputs[i].name.indexOf(rbListName)>=0 && inputs[i].type == "radio" && inputs[i].checked) return inputs[i].value;
        }
    }
</script>
<asp:Button ID="btnSave" runat="server" Text="Grabar Informacion" OnClientClick="return checkRadioIsSet();" />
<asp:Button ID="Button1" runat="server" Text="get selected value for Seguimiento Critica" OnClientClick="alert(getSelectedValue('rblSeguimientoCritica'));" />
<asp:Button ID="Button2" runat="server" Text="get selected value for Inovacion Fundada" OnClientClick="alert(getSelectedValue('rblInovacionFundada'));" />

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Please leakim971,
please, could you complete the example in the code behind?