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  1. A

    DataColumn.Expression is too slow

    I agree with you that a DataTable is not the right place to load a million rows - I was using it to show that the performance of ADO.NET has greatly improved when in comes to large DataSets. If 1,000,000 rows can be loaded into a DataTable in an acceptable amount of time, then surely 10,000...
  2. A

    DataColumn.Expression is too slow

    There's no way for me to do that in this application, without abandoning a disconnected architecture. I am already being quite selective in the rows I am downloading - to do any less would result in excessive database reads. Based on my research, I would respectfully disagree with you on the...
  3. A

    DataColumn.Expression is too slow

    I'm just wondering if anyone else has had a problem with Expression columns taking way to long to compute. I have a DataSet with 15 interconnected tables, and I'm doing a lot of Count operations on the parent tables. Also some Parent lookups, string concatenations, and a little bit of...
  4. A

    DataSets and Identity columns

    Thanks, but that doesn't quite address my problem. I'm looking for a database-independent solution, as my problem is more with the architecture of DataSets in general. My DataSet reflected the design of my database, and I wanted to display related data from 2 independent DataTables in one...
  5. A

    DataSets and Identity columns

    I have been using databinding and datasets in my last few applications, but there's something that I'm missing somewhere. I'm so close, I can see the potential, but something isn't quite right. DataGridViews and DataSets seem to be very easy to set up when there is a direct one-to-one...
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