Script Error With Date Picker

[Mike]

I have two DatePickers on an Edit Template of a grid.  When I'm adding a new record or editing an existing record of the grid, the DatePickers are throwing a script error: 'False' is undefined

 I also have enabled AutoPostBack="true" on the first DatePicker as I need to set a second DatePicker with a future date based on the date entered in the first DatePicker.  The Edit Template is wrapped in an Ajax Loading Panel, and based on this link: http://www.telerik.com/forums/146104-datepicker-script-error, I've set the flag EnablePageHeadUpdate to false and I'm still receiving the script error.

 Any ideas?

 Here's my code:

<telerik:RadGrid runat="server" ID="radAlerts" AllowPaging="True" AllowSorting="True" ShowHeader="True" GridLines="None"
    OnNeedDataSource="radAlerts_OnNeedDataSource" OnItemCommand="radAlerts_OnItemCommand" OnItemDataBound="radAlerts_OnItemDataBound"
    OnInsertCommand="radAlerts_OnInsertCommand" OnUpdateCommand="radAlerts_OnUpdateCommand" OnDeleteCommand="radAlerts_OnDeleteCommand">
    <ClientSettings AllowColumnsReorder="False" EnableRowHoverStyle="True" EnablePostBackOnRowClick="True">
        <Selecting AllowRowSelect="True"></Selecting>
        <Scrolling UseStaticHeaders="True"></Scrolling>
    </ClientSettings>
    <MasterTableView DataKeyNames="AlertId" AutoGenerateColumns="False" AllowMultiColumnSorting="True" EnableHeaderContextMenu="True"
        CommandItemDisplay="TopAndBottom" Height="100%">
        <NoRecordsTemplate>No Active Alerts.</NoRecordsTemplate>
        <CommandItemSettings ShowAddNewRecordButton="True" ShowCancelChangesButton="False" ShowSaveChangesButton="False" ShowRefreshButton="True" />
        <Columns>
            <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn">
                <HeaderStyle Width="1%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" HorizontalAlign="Left" Width="1%"></ItemStyle>
            </telerik:GridEditCommandColumn>
            <telerik:GridButtonColumn ConfirmText="Deactivate this item?" ConfirmDialogType="RadWindow" ConfirmTitle="Deactivate" ButtonType="ImageButton"
                CommandName="Delete" ConfirmDialogHeight="160px" ConfirmDialogWidth="250px" UniqueName="DeleteColumn">
                <HeaderStyle Width="1%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" Width="1%"></ItemStyle>
            </telerik:GridButtonColumn>
            <telerik:GridBoundColumn DataField="AlertId" HeaderText="ID" Visible="False"></telerik:GridBoundColumn>
            <telerik:GridTemplateColumn HeaderText="Alert">
                <HeaderStyle Width="50%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle>
                <ItemTemplate>
                    <a href='viewattachment.aspx?alert_id=<%# Eval("AlertId") %>' target="_blank"><%# Eval("Title") %></a>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridDateTimeColumn DataField="StartDate" HeaderText="Start Date" DataFormatString="{0:d}" FilterControlWidth="80%" AutoPostBackOnFilter="True">
                <HeaderStyle Width="10%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle>
            </telerik:GridDateTimeColumn>
            <telerik:GridDateTimeColumn DataField="EndDate" HeaderText="End Date" DataFormatString="{0:d}" FilterControlWidth="80%" AutoPostBackOnFilter="True">
                <HeaderStyle Width="10%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle>
            </telerik:GridDateTimeColumn>
            <telerik:GridCheckBoxColumn DataField="Inactive" HeaderText="Inactive" AutoPostBackOnFilter="True">
                <HeaderStyle Width="5%"></HeaderStyle>
                <ItemStyle VerticalAlign="Top" HorizontalAlign="Left" Width="5%"></ItemStyle>
            </telerik:GridCheckBoxColumn>
        </Columns>
        <EditFormSettings EditFormType="Template">
            <EditColumn UniqueName="AlertId" />
            <FormTemplate>
                <telerik:RadAjaxLoadingPanel runat="server" ID="radLpAlertTemplate"></telerik:RadAjaxLoadingPanel>
                <table class="editTable">
                    <tr>
                        <td class="left" style="width: 90px"><asp:Label runat="server" ID="lblTitle" Text="Title:"></asp:Label></td>
                        <td class="left">
                            <telerik:RadTextBox runat="server" ID="radAlertTitle" Width="80%" ClientIDMode="Static" MaxLength="100"></telerik:RadTextBox>
                            <asp:RequiredFieldValidator runat="server" ID="rvAlertTitle" ControlToValidate="radAlertTitle" ErrorMessage="Please enter alert text"
                                Display="Dynamic" ForeColor="Firebrick">*</asp:RequiredFieldValidator>
                        </td>
                    </tr>
                    <tr>
                        <td class="left"><asp:Label runat="server" ID="lblExitingFile" Text="Existing file:"></asp:Label></td>
                        <td class="left"><asp:HyperLink runat="server" ID="hlAlertFile"></asp:HyperLink></td>
                    </tr>
                    <tr>
                        <td class="left"><asp:Label runat="server" ID="lblFile" Text="File: "></asp:Label></td>
                        <td class="left">
                            <telerik:RadAsyncUpload runat="server" ID="radAlertUpload" MaxFileInputsCount="1" Width="50%" />
                        </td>
                    </tr>
                    <tr>
                        <td class="left"><asp:Label runat="server" ID="lblStartDate" Text="Start Date:"></asp:Label></td>
                        <td class="left">
                            <telerik:RadDatePicker runat="server" ID="radAlertStartDate" AutoPostBack="True"
                                OnSelectedDateChanged="radAlertStartDate_OnSelectedDateChanged">
                                <Calendar>
                                    <SpecialDays>
                                        <telerik:RadCalendarDay Repeatable="Today">
                                            <ItemStyle BackColor="LightGray" Font-Bold="True" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px"></ItemStyle>
                                        </telerik:RadCalendarDay>
                                    </SpecialDays>
                                </Calendar>
                                <DateInput DisplayDateFormat="yyyy-MM-dd" DateFormat="yyyy-MM-dd"></DateInput>
                            </telerik:RadDatePicker>
                            <asp:RequiredFieldValidator runat="server" ID="rvStartDate" ControlToValidate="radAlertStartDate" ErrorMessage="Please enter a Starting Date"
                                Display="Dynamic">*</asp:RequiredFieldValidator>
                        </td>
                    </tr>
                    <tr>
                        <td class="left"><asp:Label runat="server" ID="lblEndDate" Text="End Date:"></asp:Label></td>
                        <td class="left">
                            <telerik:RadDatePicker runat="server" ID="radAlertEndDate">
                                <Calendar>
                                    <SpecialDays>
                                        <telerik:RadCalendarDay Repeatable="Today">
                                            <ItemStyle BackColor="LightGray" Font-Bold="True" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px"></ItemStyle>
                                        </telerik:RadCalendarDay>
                                    </SpecialDays>
                                </Calendar>
                                <DateInput DisplayDateFormat="yyyy-MM-dd" DateFormat="yyyy-MM-dd"></DateInput>
                            </telerik:RadDatePicker>
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <asp:CheckBox runat="server" ID="cbInactive" Text="Inactive" Checked="False" />
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2"> </td>
                    </tr>
                    <tr>
                        <td colspan="2" style="text-align: left">
                            <asp:Button runat="server" ID="btnUpdate" Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>'
                                CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>' />
                            <asp:Button runat="server" ID="btnCancel" Text="Cancel" CommandName="Cancel" CausesValidation="False" />
                        </td>
                    </tr>
                </table>
            </FormTemplate>
        </EditFormSettings>
    </MasterTableView>
</telerik:RadGrid>

[Viktor Tachev]

Hello Mike,

I tried to replicate the problem, however I was not able to. I used the provided markup to create a sample WebSite project with dummy data.

After running the project there were no errors on my end. I am attaching the sample as reference. Would you give it a try and let me know what should be different in order to reproduce the error you are seeing?


Regards,
Viktor Tachev
Telerik

[Mike]

I created a new solution and brought in your code.  I'm still getting the same script error.  How can I attach the zip file?

 I'm also using the latest Telerik version - 2015.3.1111 and Visual Studio 2013.

[Viktor Tachev]

Hello Mike,

You can modify the code from the sample and paste it in a Code Block in this thread. Alternatively you can upload the modified sample in a file sharing server and provide a download link.

Moreover, you can open a support ticket and attach the project there.

Thus, we could examine the scenario you have and look for what is causing the error.

Regards,
Viktor Tachev
Telerik

[Mike]

Ok, I'll open a support ticket.  Thanks!

[Viktor Tachev]

Hi Mike,

I have replied in the support ticket and suggest we continue the conversation there. Give the suggestion a try and see how it works for you.


Regards,
Viktor Tachev
Telerik