Exception in StringValueMatrix when trying to mark all columns in a row with Crtl+Shift+Right

[gkronber]

Reproduce:

1. Open estimated values view for a regression solution
2. Click top-left cell and Ctrl+Shift+Right

System.NullReferenceException: Object reference not set to an instance of an object.
   at HeuristicLab.Data.Views.StringConvertibleMatrixView.dataGridView_SelectionChanged(Object sender, EventArgs e) in C:\reps\hl-core\trunk\HeuristicLab.Data.Views\3.3\StringConvertibleMatrixView.cs:line 557
   at System.Windows.Forms.DataGridView.OnSelectionChanged(EventArgs e)
   at System.Windows.Forms.DataGridView.FlushSelectionChanged()
   at System.Windows.Forms.DataGridView.ProcessRightKeyPrivate(Keys keyData)
   at System.Windows.Forms.DataGridView.ProcessDataGridViewKey(KeyEventArgs e)
   at System.Windows.Forms.DataGridView.OnKeyDown(KeyEventArgs e)
   at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
   at System.Windows.Forms.DataGridView.ProcessKeyEventArgs(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[abeham]

Failed to reproduce the error, it works fine when using LR in its default settings and default problem. Please confirm or update the steps to reproduce the error.

[gkronber]

Could not reproduce this problem.