My solution is:
file.aspx
<tr>
<td width="25%" align="right" valign="middle">Contact supplier:</td>
<td width="75%" align="left" valign="middle">
<asp:radiobutton id="inputOKToEmailSupplierYes" runat="server" groupname="inputOKToEmailSupplier" text="Yes" checked="true" xmlns:asp="#unknown"></asp:radiobutton>
<asp:radiobutton id="inputOKToEmailSupplierNo" runat="server" groupname="inputOKToEmailSupplier" text="No" xmlns:asp="#unknown"></asp:radiobutton>
<label visible="false" id="suppWar" style="color:red" runat="server"></label>
</td>
</tr>
and file.aspx.cs
#region OKToEmailSupplier
if (inputOKToEmailSupplierYes.Checked)
{
ContactSupplier = 1;
}
else if(inputOKToEmailSupplierNo.Checked)
{
ContactSupplier = 0;
}
#endregion
In Page_Load i called the
setFieldsToDefault();
, where i put all attributes to "null" value.. I think that was the problem :)