要求用Ajax控件实现,请问需要添加哪个控件在什么部位,半桶水菜鸟求助啊.
<form id="PostForm" runat="server" >
<table width="100%" border="0" cellpadding="2" cellspacing="0" align="center" style="height: 256px">
<tr>
<td rowspan="3" align="center" valign="middle" style="width: 35%"><br/><br/><img src="./skins/2004/images/border_login/mainpic.jpg" alt =""/></td>
<td colspan="3" valign="top"><span style="padding-top:1px;"><img src="./skins/2004/images/login_logo.jpg" alt =""/></span></td>
</tr>
<tr>
<td colspan="3" valign="top" style="height: 130px">
<table width="80%" border="0" cellpadding="0" cellspacing="0">
<tr valign="top">
td colspan="2" height="15"><font style="font-size:11pt" color="#7685A2"><strong>用户登陆<br /><br />
</strong></font>
</td>
</tr>
<tr>
<td width="28%" height="25">用户名:</td>
<td width="72%"> <input type="text" name="txtUserName" class="smallInput" cTitle="用户名" cType="loginUser" allowEmpty="false" size="25" id="txtUserName" runat="server" maxlength="20" tabindex="1" onkeydown="keyDown();"/></td>
</tr>
<tr>
<td height="25">密 码:</td>
<td> <input type="Password" name="txtPassword" class="smallInput" size="25" cTitle="密码" cType="pwd" allowEmpty="false" id="txtPassword" runat="server" tabindex="2" maxlength="20" onkeydown ="keyDown();"/></td>
</tr>
</table>
<form id="PostForm" runat="server" >
<table width="100%" border="0" cellpadding="2" cellspacing="0" align="center" style="height: 256px">
<tr>
<td rowspan="3" align="center" valign="middle" style="width: 35%"><br/><br/><img src="./skins/2004/images/border_login/mainpic.jpg" alt =""/></td>
<td colspan="3" valign="top"><span style="padding-top:1px;"><img src="./skins/2004/images/login_logo.jpg" alt =""/></span></td>
</tr>
<tr>
<td colspan="3" valign="top" style="height: 130px">
<table width="80%" border="0" cellpadding="0" cellspacing="0">
<tr valign="top">
td colspan="2" height="15"><font style="font-size:11pt" color="#7685A2"><strong>用户登陆<br /><br />
</strong></font>
</td>
</tr>
<tr>
<td width="28%" height="25">用户名:</td>
<td width="72%"> <input type="text" name="txtUserName" class="smallInput" cTitle="用户名" cType="loginUser" allowEmpty="false" size="25" id="txtUserName" runat="server" maxlength="20" tabindex="1" onkeydown="keyDown();"/></td>
</tr>
<tr>
<td height="25">密 码:</td>
<td> <input type="Password" name="txtPassword" class="smallInput" size="25" cTitle="密码" cType="pwd" allowEmpty="false" id="txtPassword" runat="server" tabindex="2" maxlength="20" onkeydown ="keyDown();"/></td>
</tr>
</table>
个人观点
那么简单的几下操作就实现,还有就是GridView控件的Ajax效果用UpdataPanel就能够实现吗??