Make the new bindingContext parameter optional.

hamorphis · hamorphis · commit ffec9c3ad617 · 2016-07-19T13:22:52.000+03:00
diff --git a/tns-core-modules/ui/page/page-common.ts b/tns-core-modules/ui/page/page-common.ts
@@ -200,7 +200,7 @@ export class Page extends ContentView implements dts.Page {
         };
     }
 
-    public onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext: any) {
+    public onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext?: any) {
         this._navigationContext = context;
         
         //https://github.com/NativeScript/NativeScript/issues/731
diff --git a/tns-core-modules/ui/page/page.d.ts b/tns-core-modules/ui/page/page.d.ts
@@ -227,9 +227,9 @@ declare module "ui/page" {
          * A method called before navigating to the page.
          * @param context - The data passed to the page through the NavigationEntry.context property.
          * @param isBackNavigation - True if the Page is being navigated from using the Frame.goBack() method, false otherwise.
-         * @param bindingContext - An object to become the binding context of the page navigating to.
+         * @param bindingContext - An object to become the binding context of the page navigating to. Optional.
          */
-        onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext: any): void;
+        onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext?: any): void;
 
         /**
          * A method called after navigated to the page.

Original file line number	Diff line number	Diff line change
`@@ -200,7 +200,7 @@ export class Page extends ContentView implements dts.Page {`
`200`	`200`	`};`
`201`	`201`	`}`
`202`	`202`
`203`		`- public onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext: any) {`
	`203`	`+ public onNavigatingTo(context: any, isBackNavigation: boolean, bindingContext?: any) {`
`204`	`204`	`this._navigationContext = context;`
`205`	`205`
`206`	`206`	`//https://github.com/NativeScript/NativeScript/issues/731`