HELP ME FIX THIS PROBLEMS:
<table cellspacing="2" cellpadding="2" summary="Edit HTML Design Table" border="0">
<tr><td class="SubHead"><dnn:label id="valname" runat="server" controlname="phongvienid" suffix=":"></dnn:label></td>
<td><asp:TextBox ID="phongvienid" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td class="SubHead"><dnn:label id="plEmailField" runat="server" controlname="emailid" suffix=":"></dnn:label></td>
<td><asp:TextBox ID="emailid"cssclass="NormalTextBox" width="390" columns="30" maxlength="100" runat="server"></asp:TextBox>
<asp:requiredfieldvalidator id="valEmail1" runat="server" cssclass="NormalRed" display="Dynamic" errormessage="<br>Email Is Required."
controltovalidate="emailid" resourcekey="valEmail1"></asp:requiredfieldvalidator>
<asp:regularexpressionvalidator id="valEmail" runat="server" cssclass="NormalRed" controltovalidate="emailid" errormessage="You Must Enter a Valid Email"
display="Dynamic" resourcekey="valEmail.ErrorMessage" validationexpression="[\w\.-]+(\+[\w-]*)?@([\w-]+\.)+[\w-]+"></asp:regularexpressionvalidator></td>
</tr>
</table>
And I have errors:
C:\Inetpub\wwwroot\dotnetnuke\DesktopModules\Blog2\mainblog.ascx: Build (page): Object reference not set to an instance of an object.
Page Validation Complete
I create module simple but It no't works.Sorry,I understand this instruction but don.t know where I can begin.Can someone help me.Thanks.