The RecurrenceExceptions table should have been automatically populated after calling SaveToDataSource. What is the exact error you are getting when you are calling this method?

Meppy

OK what I have found is this:

When I create a item and set it to a recurrence of a daily event to recur 3 times it is created corectly.

The item table has the single entry and the recurrence table has a single entry with its master set to 1405 which is the key of the related item.

Now I click on the second item displayed in the calendar and select to delete just that one occurrence.

The item table is updated with another row which relates to the exception and the new key values are 1406 and 1407 respectively.

However in the recurrence table the master value is still 1405.

so the updating is getting this far then falling over or am I not understanding this??

I have modified the DataBinding sample so that you can now mark an item as deleted by right-clicking on it. The schedule then saves and loads correctly.

Each exception of a recurrence is saved as an individual item in the Items table so that the modified properties that caused the exception to occur are saved in the database as well. The recurrence record in the database still refers to the main item of the recurrence however.

As for the image, you might have to upload (host) the image on another site and refer to it using the following syntax:

[img]http://site/image.format[/img] 

Meppy

Thanks Meppy I really appreciate your time and input.

I spent a great deal of time last night stepping thru the databinding demo and my own app and got them both to stop at the same point.

I immediately found a difference between mine app and the demo.

The call to the MarkExcpeion method in the demo uses an Appointment object named app :

app.Recurrence.MarkException(app, True)

whereas I use this :

e.Item.Recurrence.MarkException(e.Item, True)

I don't fully understand the implications of my doing this, but to aid debugging I modified mine code to match the demo.

When comparing the parallel debugging I note the following differences:

The demo Appointment has a Attendee count of 1 and a Contact count of 1
My Appointment has both these set to zero as I do not have contacts or attendees.

The demo has the Appointment Location set to nothing
My Appointment has a location object set in this.

The demo Appointment has a StartDate without a time portion displayed
My Appointment StartDate displays both date and time.

Everything else looks OK.

However my Calendar is using Location as grouping.

Could this be the cause?

Thanks

Hi Meppy, I emailed the project to your meppy@ email address yesterday.

I was thinking over last night the reason behind why I was using a custom appointment and recurrence form rather than the inbuilt ones.

I think it was to allow myself more control over what I am doing and remove sections that do not need being available.  At the time we were not going to use recurrences.

I am going to try using the inbuilt forms today to see if they will do what we need.

However I found it labourious to cycle thr the controls to identify and disable the controls not required, contacts for example and not knowing what actual code runs when say for example the Recurrence buttons are fired as I am trying to update a monthview calandars highlights based on the changes made on a timetable view one.

The project I send has a lot of naff code in the item_click event which is in development only and will not stay that way!

Thansk

Well I have spent all day, and am still here now trying to figure out what is causing this?

I now have my app coded the same as the demo and it still errors when calling SaveToDataSource stating object not set to an instance of an object?

As I cannot see into the method I have absolutely no clue as to what object it is complaining about.

I really hope you have been able to see it first hand  with the files I sent and have some idea what the problem is.

I bet it will turn out to be some stupid setting or coding error on my part but I sure would love to know what it is!

YES!!!!!!!!!!!!!!!!!   

That has resolved the problem, I knew it would end up being a typo or similar on my part, I just could not trace it!

The reason the connection string is in the registry is that it is possible the SQL Server address will change, as it has today in fact, so I have coded it to allow an admin user to redirect the app to the new SQL Server host.

Currently in design time it is pointing to a .mdf file on my hard disk but in release it will be across the network.

Thanks so much for this, hey tonight I will sleep like a babe

Cheers