message: Fix reported crash - clamp row count input to non-negative value
diff: @@ -820,7 +820,7 @@ private int MaxRowCount
  if (IsDisposed || MeshView) return int.MaxValue;
  int maxrows = 0;
  int.TryParse(rowRange.Text, out maxrows);
  - return maxrows;
  + return Math.Max(0, maxrows);
  }
  }
  