C# - Updating Panels (panel1 And Panel2) Asynchronously

I want to update panels (panel1 and panel2) asynchronously. However when the page loads, if i try to edit a row and update it, panel1's RequiredFieldValidator gives an error message * and row's update link does not work!. After adding a company from panel1, update link starts to work. How can i solve the problem?

<asp:UpdatePanel ID="updatepanel1" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<div id="div1">
<table>
<tr>
<td><b>Company Name</b></td>
<td>
<asp:TextBox ID="company" runat="server" ></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="company" ErrorMessage="*"
Display="Dynamic" ></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td></td>
<td>...............................