hi i am trying to change the color of selected date i used the following code but it is not working

<asp:Calendar ID="Calendar1" runat="server" BackColor="White" BorderColor="Black"
                                    OnDayRender="Calendar1_DayRender" Width="300px" DayNameFormat="Shortest" Font-Names="Times New Roman"
                                    Font-Size="10pt" ForeColor="Black" Height="220px" NextPrevFormat="FullMonth"
                                    TitleFormat="Month">                                   
                                  
                                    <SelectorStyle BackColor="#CCCCCC" Font-Bold="True" Font-Names="Verdana" Font-Size="8pt"
                                        ForeColor="#333333" Width="1%" />
                                    <TodayDayStyle BackColor="#CCCC99" />
                                    <OtherMonthDayStyle ForeColor="#999999" />
                                    <DayStyle Width="14%" />
                                    <NextPrevStyle Font-Size="9pt" ForeColor="#FFFFCC" />
                                    <SelectedDayStyle BackColor="#CC3399" BorderColor="#FF0066" />
                                    <DayHeaderStyle BackColor="#CCCCCC" Font-Bold="True" Height="10pt" Font-Size="7pt"
                                        ForeColor="#333333" />
                                    <TitleStyle BackColor="Black" Font-Bold="True" Font-Size="13pt" ForeColor="White"
                                        Height="14pt" />
                                </asp:Calendar>

when clicking the date noting is displaying

Is there any error displayed in your browser?

It seems to be working for me.

Could you post the entire code of your page ? so that somebody can undestand the issue and provide you a solution.

<script language="C#" runat="server">
    

        protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)
        {
            e.Cell.Text = "<a href='#' onclick='clickdate(this.title);' title='" + e.Day.Date.DayOfWeek.ToString() + "'> " + e.Day.Date.Day.ToString() + "</a>";
            //e.Cell.Text = "<input type='button' value='" + e.Day.Date.Day.ToString() + "' onclick='clickdate(this.value);'/>";
           
          
        }
        
       
    </script>

    <script type="text/javascript">
        window.onload
        var days = new Array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
        window.onload = function() {
        var thetime = new Date();
           

            var nday = thetime.getDay();

            var dayNames = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");

            clickdate(dayNames[nday]);

        }
        function clickdate(day) {
            for (var i = 0; i < 6; i++) {
                if (days[i] == day) {
                    var tr = document.getElementById("ctl00_ContentPlaceHolder1_" + day + "tableRow");
                    tr.style.backgroundColor = '#CDC673';
                }
                else {
                    var tr = document.getElementById("ctl00_ContentPlaceHolder1_" + days[i] + "tableRow");
                    tr.style.backgroundColor = '';
                }
            }
        }
        
    </script>

    <div id="homeDiv" runat="server" class="StudentPageBackground">
        <table width="100%" cellpadding="0" cellspacing="0">
            <tr>
                <td colspan="2" style="background-color: #EFF7FF; height: 8px">
                </td>
            </tr>
            <tr>
                <td style="width: 20%" valign="top">
                    <div class="PanelMargin">
                        <asp:Panel ID="Panelleft" Width="100%" CssClass="leftPanelColor" runat="server">
                            <div class="PanelHeading">
                                Calender
                                <asp:Label ID="selectedDateLbl" runat="server" ></asp:Label>
                            </div>
                            <div class="PanelBackground">
                                <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                                <ContentTemplate>
                                <asp:Calendar ID="Calendar1" runat="server" BackColor="White" BorderColor="Black"
                                    OnDayRender="Calendar1_DayRender" Width="300px" DayNameFormat="Shortest" Font-Names="Times New Roman"
                                    Font-Size="10pt" ForeColor="Black" Height="220px" NextPrevFormat="FullMonth"
                                    TitleFormat="Month">                                   
                                  
                                    <SelectorStyle BackColor="#CCCCCC" Font-Bold="True" Font-Names="Verdana" Font-Size="8pt"
                                        ForeColor="#333333" Width="1%" />
                                    <TodayDayStyle BackColor="#CCCC99" />
                                    <OtherMonthDayStyle ForeColor="#999999" />
                                    <DayStyle Width="14%" />
                                    <NextPrevStyle Font-Size="9pt" ForeColor="#FFFFCC" />
                                    <SelectedDayStyle BackColor="#CC3399" BorderColor="#FF0066" />
                                    <DayHeaderStyle BackColor="#CCCCCC" Font-Bold="True" Height="10pt" Font-Size="7pt"
                                        ForeColor="#333333" />
                                    <TitleStyle BackColor="Black" Font-Bold="True" Font-Size="13pt" ForeColor="White"
                                        Height="14pt" />
                                </asp:Calendar>
                                </ContentTemplate>
                                </asp:UpdatePanel>
                                
                            </div>
                        </asp:Panel>

I have checked your code.

It seems that you are trying to change the background color using javascript(using clickdate).

As I said in your previous post, SelectedDayStyle will take care of changing the BackColor when you click on a date.

Also your code generates script error in clickdate function at run time. It will also prevent changing the color.

I would suggest not to use bothe javascript funtions and SelectedDayStyle property. Use either one.

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