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POMy datagrid's selection is lost when updating my database from the grid's bound dataset. Any workarounds?
 

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  1. POMy datagrid's selection is lost when updating my database from the grid's bound dataset. Any workarounds?
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    <p>I am using Xceed's Datagrid, bound to a dataset. I want to update the database when the datagrid's RowEditEnd is called. The problem is that in order to avoid concurrency violations when updating, I have to clear the dataset after update and refill it, like this:</p> <pre><code>public void UpdateDatabaseFromDataSet() { adapter.Update(exampleDataSet); exampleDataSet.Clear(); adapter.Fill(exampleDataSet); } </code></pre> <p>I think I have to do this because my dataset's primary autoincrement column "ID" does not match the values generated by the database. When I clear the dataset, it clears the datagrid and its selected cell. This is very annoying since, if you edit a cell and hit enter or a directional key, the cell and database will update fine, but your selection gets reset instead of navigating to the next row/cell. This makes entering data by hand very cumbersome.</p> <p>Here is the method that creates the dataset:</p> <pre><code>public void InitDataSet(int tableid) { cmd = new SQLiteCommand("SELECT * FROM table_" + tableid, con); adapter = new SQLiteDataAdapter(cmd); cb = new SQLiteCommandBuilder(adapter); try { exampleDataSet = new DataSet(); adapter.Fill(exampleDataSet); prodDataSet.Tables[0].Columns[0].AutoIncrementSeed = -1; prodDataSet.Tables[0].Columns[0].AutoIncrementStep = -1; currenttableID = tableid; } catch (ApplicationException ex) { MessageBox.Show("Encountered an error.", "Error: " + ex.ToString()); } } </code></pre> <p>Note that I have tried setting the tables autoincrementseed and autoincrementsteps to -1 but I still get concurrency violations if I don't refill the dataset.</p> <p>I would really like my datagrid to work the way it does if I do not clear and refill the dataset. Is there anyway to avoid the concurrency violations I'm running into? Am I going about this the wrong way?</p> <p>Thanks for your help. -Steven</p>
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