Updating a dataset using SqlDependency

[Guest]

I am trying to update a DataGrid by binding to a dataset located in another
class.
In this class, I subscribe to a Query Notification using a SqlDependency.
In the SqlDependency's OnChange event, I attempt to merge a temporary dataset
FILLed with a DataAdapter with a private dataset of the class. It performs
well enough until the OnChange event fires at an increased rate, when I see
the "DataTable internal index is corrupted: '13'" exception arise. I am
guessing my problems have to do with multiple threads attempting to change
the local dataset at the same time. I've tried using a lock statement to
lock the dataset around any operations with the dataset to no avail. Can
someone offer me an approach to this issue?

Thanks,
Chris

 

[Jeff Dillon]

From Google:

Seems like I found solution for this issue: before updating row's values
need to call DataRow.BeginEdit() and call DataRow.EndEdit() after all
changes are made.

Looks like ADO.Net modifies column values implicitly calling .BeginEdit()
and .EndEdit() BUT when there are several threads running simultaneously and
accessing DataTable ADO.Net do not synchronize those write operations.

 

[Guest]

Yes, I've seen that one. How would you use them when using a DataAdapter
though?