From fc3c52691e99d58b55445fc3dbfe7b1ea083d3d7 Mon Sep 17 00:00:00 2001
From: Nedyalko Nikolov <nedyalko.nikolov@telerik.com>
Date: Mon, 31 Aug 2015 15:49:42 +0300
Subject: [PATCH] Fixed issue with binding when there is no sourceProperty set.

---
 apps/tests/ui/bindable-tests.ts | 18 ++++++++++++++++++
 ui/core/bindable.ts             |  9 +++++++--
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/apps/tests/ui/bindable-tests.ts b/apps/tests/ui/bindable-tests.ts
index fa74af4f9..f8f394598 100644
--- a/apps/tests/ui/bindable-tests.ts
+++ b/apps/tests/ui/bindable-tests.ts
@@ -887,4 +887,22 @@ export function test_NestedPropertiesBindingTwoTargetsAndReplacingSomeNestedObje
     (<Activity>act1).Owner = newPerson;
 
     TKUnit.assertEqual(target2.get("targetProp"), secondExpectedFirstName);
+}
+
+export function test_NullSourcePropertyShouldNotCrash() {
+	var expectedValue = "Expected Value";
+	var target = new bindable.Bindable();
+	var convFunc = function (value) {
+		return value + "Converted";
+	}
+	var model = new observable.Observable();
+	model.set("field", expectedValue);
+	model.set("convFunc", convFunc);
+	target.bind({
+		sourceProperty: null,
+		targetProperty: "targetProp",
+		expression: "convFunc(field)"
+	}, model);
+
+	TKUnit.assertEqual(target.get("targetProp"), convFunc(expectedValue)); 
 }
\ No newline at end of file
diff --git a/ui/core/bindable.ts b/ui/core/bindable.ts
index 1f1fbf4d5..b79e922e3 100644
--- a/ui/core/bindable.ts
+++ b/ui/core/bindable.ts
@@ -187,8 +187,13 @@ export class Binding {
         return this.sourcePropertiesArray;
     }
 
-    private static getProperties(property: string) {
-        return property.split(".");
+    private static getProperties(property: string): Array<string> {
+		if (property) {
+			return property.split(".");
+		}
+		else {
+			return [];
+		}
     }
 
     private resolveObjectsAndProperties(source: Object, propsArray: Array<string>) {