refactor: billing - use Form title, Tabular always present, form submit loadData via script

wwwroot/billing.ui

@@ -1,5 +1,3 @@
-{% set start_date = params_kw.get('start_date', '') %}
-{% set end_date = params_kw.get('end_date', '') %}
 {
 	"widgettype":"VBox",
 	"id":"billing_page",
@@ -11,33 +9,19 @@
 	},
 	"subwidgets":[
 		{
-			"widgettype":"Title6",
+			"widgettype":"Form",
 			"options":{
-				"text":"账单查询"
-			}
-		},
-		{
-			"widgettype":"VBox",
-			"options":{
-				"width":"100%",
-				"height":"60px"
-			},
-			"subwidgets":[
-				{
-					"widgettype":"Form",
-					"options":{
-						"fields":[
+				"title":"账单查询",
+				"fields":[
 					{
 						"name":"start_date",
 						"label":"开始日期",
-						"uitype":"date",
-						"value":"{{start_date}}"
+						"uitype":"date"
 					},
 					{
 						"name":"end_date",
 						"label":"结束日期",
-						"uitype":"date",
-						"value":"{{end_date}}"
+						"uitype":"date"
 					}
 				],
 				"buttons":[
@@ -52,29 +36,22 @@
 				{
 					"wid":"self",
 					"event":"submit",
-					"actiontype":"urlwidget",
-					"target":"billing_page",
+					"actiontype":"script",
+					"target":"billing_tabular",
 					"options":{
-						"url":"{{entire_url('/accounting/billing.ui')}}"
-					},
-					"mode":"replace"
+						"script":"this.loadData(params)"
+					}
 				}
 			]
-				}
-			]
-		}
-{% if start_date and end_date %}
-		,{
+		},
+		{
 			"widgettype":"Tabular",
+			"id":"billing_tabular",
 			"options":{
 				"width":"100%",
 				"height":"100%",
 				"css":"filler",
 				"data_url":"{{entire_url('/accounting/billing.dspy')}}",
-				"data_params":{
-					"start_date":"{{start_date}}",
-					"end_date":"{{end_date}}"
-				},
 				"editable":false,
 				"page_rows":80,
 				"cache_limit":3,
@@ -157,6 +134,5 @@
 				}
 			}
 		}
-{% endif %}
 	]
 }