WinFrmUI/HStation.WinFrmUI.Assets.Core/08-sprinkler/SprinklerViewModel.cs
@@ -20,7 +20,7 @@ { this.Caliber = rhs.Caliber.ToString(); } if (rhs.Material == null) if (rhs.Material == null || rhs.Material == string.Empty) { this.Material = "默认"; }