Pull request #3199: 无JIRA fix: bi.text_value_down_list_combo修复

Merge in VISUAL/fineui from ~DAILER/fineui:master to master

* commit '97bd332535992fc6bbd77f12c32bf5633a4752e4':
  无JIRA  fix: bi.text_value_down_list_combo修复

src/widget/textvaluedownlistcombo/combo.textvaluedownlist.js

@@ -19,14 +19,6 @@ BI.TextValueDownListCombo = BI.inherit(BI.Widget, {
         if(BI.isNotNull(o.value)) {
             value = this._digest(o.value);
         }
-        this.trigger = BI.createWidget({
-            type: "bi.down_list_select_text_trigger",
-            cls: "text-value-down-list-trigger",
-            height: BI.toPix(o.height, 2),
-            items: o.items,
-            text: o.text,
-            value: value
-        });
 
         this.combo = BI.createWidget({
             type: "bi.down_list_combo",
@@ -35,7 +27,17 @@ BI.TextValueDownListCombo = BI.inherit(BI.Widget, {
             adjustLength: 2,
             width: BI.toPix(o.width, 2),
             height: BI.toPix(o.height, 2),
-            el: this.trigger,
+            el: {
+                type: "bi.down_list_select_text_trigger",
+                ref: function (_ref) {
+                    self.trigger = _ref;
+                },
+                cls: "text-value-down-list-trigger",
+                height: BI.toPix(o.height, 2),
+                items: o.items,
+                text: o.text,
+                value: value
+            },
             value: BI.isNull(value) ? [] : [value],
             items: BI.deepClone(o.items)
         });
@@ -79,7 +81,7 @@ BI.TextValueDownListCombo = BI.inherit(BI.Widget, {
     setValue: function (v) {
         v = this._digest(v);
         this.combo.setValue([v]);
-        this.trigger.setValue(v);
+        this.trigger?.setValue(v);
     },
 
     getValue: function () {