Sync with Kendo UI Professional

Author: Kendo Bot

docs/api/javascript/ui/form.md

@@ -206,6 +206,110 @@ By default, the Form is rendered with vertical orientation.
         });
     </script>
 
+### messages `Object`
+
+Configures text messages displayed in the Form. Use it to customize or localize the Form messages.
+
+#### Example - customize form submit and clear buttons messages
+
+    <form id="myForm"></form>
+
+    <script>
+        $("#myForm").kendoForm({
+            orientation: "horizontal",
+            formData: {
+                ID: 1,
+                Name: "Ivan"
+            },
+            items: [{
+                field: "Name",
+                label: "Name:"
+            }],
+            messages: {
+                submit: "Custom Submit Button Text",
+                clear: "Custom Clear Button Text"
+            }
+        });
+    </script>
+
+### messages.submit `String` *(default: "Submit")*
+
+The text message displayed for the Form submit button.
+
+#### Example - set the submit button message
+
+    <form id="myForm"></form>
+
+    <script>
+        $("#myForm").kendoForm({
+            orientation: "horizontal",
+            formData: {
+                ID: 1,
+                Name: "Ivan"
+            },
+            items: [{
+                field: "Name",
+                label: "Name:"
+            }],
+            messages: {
+                submit: "Custom Submit Button Text"
+            }
+        });
+    </script>
+
+### messages.clear `String` *(default: "Clear")*
+
+The text message displayed for the Form clear button.
+
+#### Example - set the clear button message
+
+    <form id="myForm"></form>
+
+    <script>
+        $("#myForm").kendoForm({
+            orientation: "horizontal",
+            formData: {
+                ID: 1,
+                Name: "Ivan"
+            },
+            items: [{
+                field: "Name",
+                label: "Name:"
+            }],
+            messages: {
+                clear: "Custom Clear Button Text"
+            }
+        });
+    </script>
+
+### messages.optional `String` *(default: "(Optional)")*
+
+The text message displayed next to a field label when the [items.label.optional](items.label.optional) option is set to `true`.
+
+#### Example - set the clear button message
+
+    <form id="myForm"></form>
+
+    <script>
+        $("#myForm").kendoForm({
+            orientation: "horizontal",
+            formData: {
+                ID: 1,
+                Name: "Ivan"
+            },
+            items: [{
+                field: "Name",
+                label: {
+                    text: "Name:",
+                    optional: true
+                }
+            }],
+            messages: {
+                optional: "(Optional field)"
+            }
+        });
+    </script>
+
 ### validatable `Object`
 
 Configures the built-in Validator options.

src/kendo.datepicker.js

@@ -540,7 +540,7 @@ var __meta__ = { // jshint ignore:line
 
             that._old = that._update(value);
 
-            if (that._old === null) {
+            if (that._old === null && !that._dateInput) {
                 that.element.val("");
             }
 
@@ -681,7 +681,7 @@ var __meta__ = { // jshint ignore:line
             if (+date === +current && isSameType) {
                 formattedValue = kendo.toString(date, options.format, options.culture);
 
-                if (formattedValue !== value) {
+                if (formattedValue !== value && !(that._dateInput && !date)) {
                     that.element.val(date === null ? value : formattedValue);
                 }
 

tests/datepicker/api.js

@@ -620,6 +620,14 @@ it("readonly calls dateinput _editable method", function() {
     assert.equal(atStub.calls("_editable"), 1);
 });
 
+it("value method should not clear DateInput format", function() {
+    var datepicker = new DatePicker(input, {
+        dateInput: true
+    });
+    datepicker.value("");
+    assert.isOk(datepicker.element.val());
+});
+
 it("enable calls dateinput _editable method", function() {
     var datepicker = new DatePicker(input, {
         dateInput: true