Databound checkbox serialization error.

Are you subscribing to any events for this checkbox on your form, such as CheckedChanged?

Sergey Barskiy

Principal Consultant

office: 678.405.0687 | mobile: 404.388.1899

Microsoft Worldwide Partner of the Year | Custom Development Solutions, Technical Innovation

Additional information. Hoping someone can point out if I can serialize, and where to do it.

The offending code producing the quoted error is:

Global.BindField(chkOverwriteTotal, "Checked", m_FixtureCountCollection["6-B"], "NumberOfFixtures", b_Format, b_Parse);

chkOverwriteTotal.DataBindings["Checked"].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged;

The first line uses some general code of ours for binding controls adapted from Rocky's book. When I added the next line to get instant response on the check box, the serialization error occurs. Note that it occurs at runtime when the user actually clicks on the checkbox.

Once more, a plea for help.

Thanks.

Hmmm.  I am afraid I do not have a good idea of why this occurs.  Could there be an issue with custom code you guys have?  Could you try to bind the checkbox manually just to test this theory?

Sergey Barskiy

Principal Consultant

office: 678.405.0687 | mobile: 404.388.1899

Microsoft Worldwide Partner of the Year | Custom Development Solutions, Technical Innovation

Yes. But I've tested without subscribing to any events. Same problem.

You should be able to do something like just to test the theory.   I would recommend disabling CHeckedChanged event for testing as well just to eliminate as many moving parts from test as possible.

chkOverwriteTotal.DataBindins.Add(“Checked”, objectOrDataSource, “MyProperty”, null, DataSourceUpdateMode.OnPropertyChanged);

Serialization error typically occurs if you are attaching a non-serializable object to your object graph, most commonly via an event.

Sergey Barskiy

Principal Consultant

office: 678.405.0687 | mobile: 404.388.1899

Microsoft Worldwide Partner of the Year | Custom Development Solutions, Technical Innovation

Hi Sergey.

I'll try to create a simplified version of what we're doing, but from your response, I guess you're saying that, in theory, I should be able to do this kind of thing:

chkOverwriteTotal.DataBindings["Checked"].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged;

without any problems, if I can get my code right.

As an alternative, I tried forcing the datasource to be updated during the CheckedChange event using the DataBindings[indx].WriteValue() method, but it triggers the same kind of serialization error.

- jim