[Solved] Require resources, advanced date, and output errors

[David]

Hello. I need help with three things:

• I need to make it required that a user selects from two resource dropdowns before attempting to submit a new appointment.
• I need to make it required that the date of the appointment is after today.
• I need to output error messages if either of these two do not happen.

        protected void RadScheduler1_AppointmentInsert(object sender, SchedulerCancelEventArgs e)
        {
            //if the event takes place before today, cancel, preferably with an error message
            //if the resources are left empty, cancel, preferably with an error message
            if (e.Appointment.Start <= DateTime.Now)
            {
                e.Cancel = true;
            }
        }

        protected void RadScheduler1_AppointmentUpdate(object sender, AppointmentUpdateEventArgs e)
        {
            //if the event takes place before today, cancel, preferably with an error message
            //if the resources are left empty, cancel, preferably with an error message
            if (e.ModifiedAppointment.Start <= DateTime.Now)
            {
                e.Cancel = true;
            }
        }

Using the above functions, I can prevent insertion/editing-in a prior date, but how do I get the scheduler to output an error message?

And how do I require resource selection from dropdown menus AND provide errors for those as well?

Thanks in advance.

[David]

Help! I've gotten this much to work so far:

            //the following should output errors

            if (e.ModifiedAppointment.Subject == String.Empty)
            {
                e.Cancel = true;
            }

            if (e.ModifiedAppointment.Start <= DateTime.Now)
            {
                e.Cancel = true;
            }

            if (e.ModifiedAppointment.Resources.GetResourceByType("Event") == null)
            {
                e.Cancel = true;
            }

            if (e.ModifiedAppointment.Resources.GetResourceByType("Location") == null)
            {
                e.Cancel = true;
            }

But I need errors to display if any of the above are true.

Please help as I'm stuck at this point.

[David]

I still need help. The form does not output errors.

[Peter]

Hello David,

You can add the error message as a label control in FormCreated. Then you can use jQuery and a hidden field (that will act as a flag) to hide or show it as needed. For example:

<script type="text/javascript">
          function OnClientFormCreated(sender, eventArgs) {
            var showErrorMessage = document.getElementById("showErrorMessage");
            if(showErrorMessage.value == "false")
                $telerik.$(".errorMessageTimepickerCss").hide();
            else
                $telerik.$(".errorMessageTimepickerCss").show();

        }
    </script>
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:HiddenField ID="showErrorMessage" runat="server" Value="false"/>

    <telerik:RadScheduler ID="RadScheduler1" runat="server"
        onappointmentupdate="RadScheduler1_AppointmentUpdate"
        onformcreated="RadScheduler1_FormCreated"
        OnClientFormCreated="OnClientFormCreated"
        >
        <AdvancedForm Modal="true" />
    </telerik:RadScheduler>

.errorMessageTimepickerCss
    {
      color:Red;
    }

 

protected void RadScheduler1_FormCreated(object sender, SchedulerFormCreatedEventArgs e)
    {
        if (e.Container.Mode == SchedulerFormMode.AdvancedEdit || e.Container.Mode == SchedulerFormMode.AdvancedInsert)
        {
            Label errorMessageTimepicker = new Label();
            errorMessageTimepicker.Text = "start date should be after today";
            errorMessageTimepicker.CssClass = "errorMessageTimepickerCss";

            Panel advancedPanel = (Panel)e.Container.FindControl("BasicControlsPanel");
            if(advancedPanel.FindControl("errorMessageTimepicker") == null)
                advancedPanel.Controls.Add(errorMessageTimepicker);
        }
    }
    protected void RadScheduler1_AppointmentUpdate(object sender, AppointmentUpdateEventArgs e)
    {
        if (e.ModifiedAppointment.Start <= DateTime.Now)
        {
            e.Cancel = true;
            showErrorMessage.Value = "true";
        }
        else
            showErrorMessage.Value = "false";
    }

Let us know  if this approach can be applied in your case.

Regards,
Peter
the Telerik team

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[David]

That looks like it'll work. I'll give it a try shortly.

That's quite a bit of work, though, and it's not transparent for others who may have the same problem. Would it be possible to make a resource property such as IsRequired and another possibly for ResourceNotSpecifiedError text? You guys can probably come up with a better way to do that, but it'd be a lot easier to say that Resource Location is required and that the Not Specified Error Text is "No Location Specified".

[Peter]

Hi David,

Thank you for this suggestion. I have logged your suggestion and we will consider implementing such a feature.


Kind regards,
Peter
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.