Added option for #466 - although this may be handled easier by directly...

Added option for #466 - although this may be handled easier by directly modifying the buttonText option!

dist/js/bootstrap-multiselect.js

@@ -198,7 +198,12 @@
                     return this.nonSelectedText;
                 }
                 else if (this.allSelectedText && options.length == $('option', $(select)).length) {
-                    return this.allSelectedText;
+                    if (this.selectAllNumber) {
+                        return this.allSelectedText + ' (' + options.length + ')';
+                    }
+                    else {
+                        return this.allSelectedText;
+                    }
                 }
                 else if (options.length > this.numberDisplayed) {
                     return options.length + ' ' + this.nSelectedText;
@@ -306,6 +311,7 @@
             selectAllText: ' Select all',
             selectAllValue: 'multiselect-all',
             selectAllName: false,
+            selectAllNumber: true,
             enableFiltering: false,
             enableCaseInsensitiveFiltering: false,
             enableClickableOptGroups: false,

index.html

@@ -1595,6 +1595,47 @@
         });
     });
 </script>
+</pre>
+                                    </div>
+                                </td>
+                            </tr>
+                            <tr>
+                                <td>
+                                    <code>selectAllNumber</code>
+                                </td>
+                                <td>
+                                    <p>
+                                        If set to <code>true</code> (default), the number of selected options will be shown in parantheses when all options are seleted. The below example shows the behavior of the selectalloption with <code>selectAllNumber</code> set to <code>false</code>:
+                                    </p>
+
+                                    <div class="example">
+                                        <script type="text/javascript">
+                                            $(document).ready(function() {
+                                                $('#example-selectAllNumber').multiselect({
+                                                    includeSelectAllOption: true,
+                                                    selectAllNumber: false
+                                                });
+                                            });
+                                        </script>
+                                        <select id="example-selectAllNumber" multiple="multiple">
+                                            <option value="1">Option 1</option>
+                                            <option value="2">Option 2</option>
+                                            <option value="3">Option 3</option>
+                                            <option value="4">Option 4</option>
+                                            <option value="5">Option 5</option>
+                                            <option value="6">Option 6</option>
+                                        </select>
+                                    </div>
+                                    <div class="highlight">
+<pre class="prettyprint linenums">
+&lt;script type=&quot;text/javascript&quot;&gt;
+    $(document).ready(function() {
+        $('#example-selectAllNumber').multiselect({
+            includeSelectAllOption: true,
+            selectAllNumber: false
+        });
+    });
+&lt;/script&gt;
 </pre>
                                     </div>
                                 </td>