!2098 修复:无效配置高级排钻代码修复

src/UI/Components/Board/BoardCommon.tsx

@@ -620,9 +620,11 @@ export class DrillTypeSelectCom extends React.Component<IDrillTypeSelect, { isDa
             let invalidDrillList: string[] = [];
             this._InvalidDrillBoardList = [];
             let modal = app.Editor.ModalManage.CurrentModal;
+            if (modal)
+            {
                 modal.IsLock = true;
                 modal.Minimize();
-
+            }
             for (let en of app.Database.ModelSpace.Entitys)
             {
                 if (!en.IsErase && en instanceof Board)
@@ -645,11 +647,11 @@ export class DrillTypeSelectCom extends React.Component<IDrillTypeSelect, { isDa
 
                 if (state.Status === ModalState.Cancel)
                 {
-                    modal.Focus();
+                    modal?.Focus();
                     return;
                 }
             }
-            modal.IsLock = false;
+            if (modal) modal.IsLock = false;
         }
 
         app.Editor.ModalManage.DestoryAll();