Accessing Controls in Customized Advanced Edit Form

[steve matheson]

I am using a customized advanced insert/edit form in the Q3 2008 version of the Scheduler.
I am trying to set some of the default control properties for start date/time and end date/time by using the form created event and this vb code to set the value (in this example, of the EndDate):

 

If e.Container.Mode = SchedulerFormMode.AdvancedInsert Then

 

Dim enddateinput As RadDatePicker = New RadDatePicker

 

enddateinput =

DirectCast(e.Container.FindControl("EndDate"), RadDatePicker)

 

enddateinput.SelectedDate =

"06/28/09"
end if

but I get a "object variable or with block variable not set"

What is the correct way to access the controls in the customized advanced input form?

steve m

 

[Genady Sergeev]

Hi steve matheson,

You can access the desired components directly in the Page_PreRender event of the SchedulerDefaultForm user control. Example:

Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
            Dim _startDate As Nullable(Of DateTime)
            _startDate = StartDate.SelectedDate

            StartDate.SelectedDate = New DateTime(3 / 31 / 2008)

            If Not FormInitialized Then
                If IsAllDayAppointment(Appointment) Then
                    EndDate.SelectedDate = EndDate.SelectedDate.Value.AddDays(-1)
                End If

                FormInitialized = True
            End If

        End Sub

Keep in mind that you cannot use FindControl directly in the FormCreated event of the RadScheduler because the AdvancedInsert/Edit form consists of several nested user controls and FindControl searches in the first container only. You can do the job by 5 nested FindControl invocations, but it is advisable not do so. I would suggest you to use the OnPreRender event instead.

Greetings,
Genady Sergeev
the Telerik team

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