Question

我正在尝试在我的asp.net网页上获取日期选择器。我已经能够使用母版页运行相同的代码它的工作原理，但现在我试图让它在没有母版寻呼机的情况下工作，我收到错误消息：错误：无法获取属性'aspnetForm.ctl00_txtDOB'的值：object为null或undefined

在我的Default.aspx页面上....

<script language="javascript" type="text/javascript">
    function calendarPicker(strField) {
        window.open('date_picker.aspx?field=' + strField, 'calendarPopup', 'width=250,height=190,resizable=yes');
    } 


        <label>DOB:</label><asp:TextBox ID="txtDOB" runat="server"></asp:TextBox>
       <img src="images/calendar.gif" alt="Pick To Date" onclick="calendarPicker('aspnetForm.ctl00_txtDOB');"/>

      I already tried onclick="calendarPicker('txtDOB');"/>


My date_picker.aspx.cs
        private void Calendar1_DayRender(object sender, System.Web.UI.WebControls.DayRenderEventArgs e)
        {

            // Clear the link from this day
            e.Cell.Controls.Clear();

            // Add the custom link
            System.Web.UI.HtmlControls.HtmlGenericControl Link = new System.Web.UI.HtmlControls.HtmlGenericControl();
            Link.TagName = "a";
            Link.InnerText = e.Day.DayNumberText;
            Link.Attributes.Add("href", String.Format("JavaScript:window.opener.document.{0}.value = \'{1:d}\'; window.close();", Request.QueryString["field"], e.Day.Date));




            // By default, this will highlight today's date.
            if (e.Day.IsSelected)
            {
                Link.Attributes.Add("style", this.Calendar1.SelectedDayStyle.ToString());
            }



            // Now add our custom link to the page
            e.Cell.Controls.Add(Link);

        }

Answer 1

尝试更改此内容：

onclick="calendarPicker('aspnetForm.ctl00_txtDOB');"

对此：

onclick="calendarPicker('<%=txtDOB.ClientID %>');"

Answer 2

我这样做是为了工作：

添加表格[0] .... window.opener.document.forms [0]。{0} .value ..........

Link.Attributes.Add（“href”，String.Format（“JavaScript：window.opener.document.forms [0]。{0} .value = \'{1：d} \'; window.close （）;“，Request.QueryString [”field“]，e.Day.Date））;

设置日期选择器上选择的日期值

2 个答案: