asynccontrols asp.net Error Creating Control " Object reference not set to an instance of an object"
here is my sample form. I'm using asynccontrols . Site compiles fine, loads fine, works fine. Can't view anything in designer. Halp?
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Calendar2.aspx.cs" Inherits="txssaAuction.Calendar2" %>
<%@ Register Assembly="AsyncControls" Namespace="DelvingWare.AsyncControls" TagPrefix="dw" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head&g开发者_StackOverflow中文版t;
<body>
<form id="form1" runat="server">
<div>
<dw:asynccalendar runat="server" ID="calMain"
DefaultStyle="false"
AbbreviateDays="true"
PreviousMonthText="<div class='navPrev' title='Previous Month'><<<</div>"
NextMonthText="<div class='navNext' title='Next Month'>>>></div>"
SelectedDayCssClass="selDay"
CssClass="asyncCalReg"
WeekendDayCssClass="weekend"
OtherMonthCssClass="otherMonth"
DayCssClass="calday"
Width="500"
MonthListCssClass="monthList"
YearListCssClass="yearList"
TodayCssClass="today"
TodayFooterCssClass="todayFooter"
DaySelectionMode="Multiple"
OnDaySelected="calMain_DaySelected"
MonthSelectorCssClass="monthSelector"
YearSelectorCssClass="yearSelector" />
<p>
<dw:asynclistbox runat="server" ID="lstMain"
SelectionMode="Single"
OnSelectedIndexChanged="lstMain_IndexChanged"
Rows="7">
<AsyncListItem Text="No Selected Dates" Value="none" />
</dw:asynclistbox>
<br/>
<dw:asynclinkbutton runat="server" ID="lnkMain"
ConfirmMessage="Are you sure you want to clear all selected dates?"
OnClick="lnkMain_Click">Clear Selected Dates</dw:asynclinkbutton>
</p>
</p>
<dw:AsyncRepeater ID="rptUsers" runat="server"
OnItemDataBound="rptUser_ItemDataBound"
EnableEffects="true"
RollACssClass="rollA"
RollBCssClass="rollB"
HighlightCssClass="highlight"
CssClass="asyncRep"
Visible="true">
<HeaderTemplate>
<table cellpadding="4">
<tr class="headlnk">
<td>
First Name
</td>
<td>
Last Name
</td>
<td>
Account Balance
</td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr $roll$ $highlight$>
<td>
<dw:AsyncLiteral runat="server" ID="ltlFirstName" />
</td>
<td>
<dw:AsyncLiteral runat="server" ID="ltlLastName" />
</td>
<td>
<dw:AsyncLiteral runat="server" ID="ltlAccBalance" />
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</dw:AsyncRepeater>
<br />
<dw:AsyncButton runat="server" ID="btMain"
OnClick="btMain_Click"
CssClass="greyButton">Re-Bind the AsyncRepeater</dw:AsyncButton>
</div>
</form>
</body>
</html>
加载中,请稍侯......
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