代码如下：
<script language="javascript" type="text/javascript" src="scripts/My97DatePicker/WdatePicker.js"></script>
</head>
<body >
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WEBLEDConnStr %>"
SelectCommand="SELECT * FROM [LED_ZLC]"></asp:SqlDataSource>
</div>
<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" AllowPaging="True" AutoGenerateColumns="False" AutoGenerateSelectButton="True" DataKeyNames="ZLC_id" Width="213px" Font-Size="Small">
<Columns>
<asp:BoundField DataField="ZLC_id" HeaderText="ZLC_id" ReadOnly="True" SortExpression="ZLC_id" />
<asp:BoundField DataField="liucmc" HeaderText="liucmc" SortExpression="liucmc" />
<asp:BoundField DataField="miaos" HeaderText="miaos" SortExpression="miaos" />
</Columns>
</asp:GridView>
<input class='Wdate' id="begindatetime" type="text" onclick="WdatePicker({el:'begindatetime',dateFmt:'yyyy-MM-dd HH:mm:ss'})" size="16" /> 页面显示后，单击input可以调出My97日历，如果先单击GridView控件里的选择命令后，再单击input就不能调出My97日历了，脚本错误提示是：不能执行已释放 script 的代码。
<script language="javascript" type="text/javascript" src="scripts/My97DatePicker/WdatePicker.js"></script>
</head>
<body >
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WEBLEDConnStr %>"
SelectCommand="SELECT * FROM [LED_ZLC]"></asp:SqlDataSource>
</div>
<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" AllowPaging="True" AutoGenerateColumns="False" AutoGenerateSelectButton="True" DataKeyNames="ZLC_id" Width="213px" Font-Size="Small">
<Columns>
<asp:BoundField DataField="ZLC_id" HeaderText="ZLC_id" ReadOnly="True" SortExpression="ZLC_id" />
<asp:BoundField DataField="liucmc" HeaderText="liucmc" SortExpression="liucmc" />
<asp:BoundField DataField="miaos" HeaderText="miaos" SortExpression="miaos" />
</Columns>
</asp:GridView>
<input class='Wdate' id="begindatetime" type="text" onclick="WdatePicker({el:'begindatetime',dateFmt:'yyyy-MM-dd HH:mm:ss'})" size="16" /> 页面显示后，单击input可以调出My97日历，如果先单击GridView控件里的选择命令后，再单击input就不能调出My97日历了，脚本错误提示是：不能执行已释放 script 的代码。
下面是完全的代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Temp2.aspx.cs" Inherits="Temp2" %><%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %><%@ Register Src="WebUCTreeView.ascx" TagName="WebUCTreeView" TagPrefix="uc1" %><!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>无标题页</title>
<script language="javascript" type="text/javascript" src="scripts/My97DatePicker/WdatePicker.js"></script>
</head>
<body >
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WEBLEDConnStr %>"
SelectCommand="SELECT * FROM [LED_ZLC]"></asp:SqlDataSource>
</div>
<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" AllowPaging="True" AutoGenerateColumns="False" AutoGenerateSelectButton="True" DataKeyNames="ZLC_id" Width="213px" Font-Size="Small">
<Columns>
<asp:BoundField DataField="ZLC_id" HeaderText="ZLC_id" ReadOnly="True" SortExpression="ZLC_id" />
<asp:BoundField DataField="liucmc" HeaderText="liucmc" SortExpression="liucmc" />
<asp:BoundField DataField="miaos" HeaderText="miaos" SortExpression="miaos" />
</Columns>
</asp:GridView>
<input class='Wdate' id="begindatetime" type="text" onclick="WdatePicker({el:'begindatetime',dateFmt:'yyyy-MM-dd HH:mm:ss'})" size="16" />
</form> </body>
</html>
没有用到哦，先删除这段代码看是否还有问题呢？
http://www.open-open.com/ajax/DatePicker.htm