Data Binding - Commiting new row to dataset

I have a form with some text boxes, bound to a table in a DataSet. I can create a new row like this:

Code:

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ds.Tables[0].Rows.Add(ds.Tables[0].NewRow());

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After moving to the new record, you enter in your new data. I'm having trouble committing the data to the DataSet (not the DB). If I click my save button, default values, not the values typed in get sent to the db. A work around is to change the BindingManagerBase.Position like this, but it doesn't seem right:

Code:

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private void btnSaveAndClose_Click(object sender, System.EventArgs e)
{
        // Cheezy hack to commit the new record
        btnNext_Click(null, null); // Moves to the last record of the table.
        // End cheezy hack

        statusBar1.Text = "Updating...";
        DataSet changes = ds.GetChanges();
.
.
.

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Is there a better way to commit the changes to the DataSet?