diff --git a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/db/ModelCatalogTreeHandler.java b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/db/ModelCatalogTreeHandler.java
index e19af19..a045192 100644
--- a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/db/ModelCatalogTreeHandler.java
+++ b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/db/ModelCatalogTreeHandler.java
@@ -50,6 +50,7 @@ public class ModelCatalogTreeHandler extends AbstractTreeHandler<DefaultEntity>
         exc_empty = params.readBool("exc_empty");
         exc_depend = params.readBool("exc_depend");
         only_bill = params.readBool("only_bill");
+        if (only_bill) exc_empty = true;
         mcTreeHelper = (ModelCatalogTreeHelper) TreeHelper.getTreeHelper(ModelCatalog.ENTITY_NAME);
     }
 
diff --git a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/form/ModelForm.java b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/form/ModelForm.java
index 509750a..2794a63 100644
--- a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/form/ModelForm.java
+++ b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/form/ModelForm.java
@@ -230,6 +230,7 @@ public class ModelForm extends DefaultEntity {
 
     //返回单据类型id
     public long getBillType() {
-        return getOpts().readLong(ModelFormHelper.KEY_BILL_TYPE);
+        SwMap opts = getOpts();
+        return opts != null ? opts.readLong(ModelFormHelper.KEY_BILL_TYPE) : 0L;
     }
 }