From 44c2b28f4bc89ed2d9063955c09f7e0114b72224 Mon Sep 17 00:00:00 2001
From: Tomasz Lewinski <tomasz.lewinski@scalac.io>
Date: Sun, 18 Dec 2016 19:16:01 +0100
Subject: [PATCH 1/2] Now you can disable multiSorting

---
 iron-data-table.html | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/iron-data-table.html b/iron-data-table.html
index a4466af..dce37ec 100644
--- a/iron-data-table.html
+++ b/iron-data-table.html
@@ -328,6 +328,15 @@
           value: false
         },
 
+        /**
+         * When `false`, items may be sorted by many collumns at once.
+         * When `true`, items may be sorted only by one collumn.
+         */
+        disableMultiSort: {
+          type: Boolean,
+          value: false
+        },
+
         /**
          * Number of items fetched at a time from the datasource.
          */
@@ -650,6 +659,18 @@
           }
         }
 
+        // disable multiSorting
+        if(this.disableMultiSort && this.sortOrder.length) {
+          // clear currently selected column
+          this.set('sortOrder.0.direction', null);
+
+          this.set('sortOrder', [{
+            path: e.detail.path,
+            direction: e.detail.direction
+          }]);
+          return;
+        }
+
         this.push('sortOrder', {
           path: e.detail.path,
           direction: e.detail.direction

From 58b04d0a9181e24667229ca97e3a9e3fd41e87ae Mon Sep 17 00:00:00 2001
From: Tomasz Lewinski <tomasz.lewinski@scalac.io>
Date: Sun, 18 Dec 2016 19:22:21 +0100
Subject: [PATCH 2/2] moved param definition in better place

---
 iron-data-table.html | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/iron-data-table.html b/iron-data-table.html
index dce37ec..a3a1f47 100644
--- a/iron-data-table.html
+++ b/iron-data-table.html
@@ -307,6 +307,15 @@
           value: false
         },
 
+        /**
+         * When `false`, items may be sorted by many collumns at once.
+         * When `true`, items may be sorted only by one collumn.
+         */
+        disableMultiSort: {
+          type: Boolean,
+          value: false
+        },
+
         /**
          * An array containing path/filter value pairs that are used to filter the items
          */
@@ -328,15 +337,6 @@
           value: false
         },
 
-        /**
-         * When `false`, items may be sorted by many collumns at once.
-         * When `true`, items may be sorted only by one collumn.
-         */
-        disableMultiSort: {
-          type: Boolean,
-          value: false
-        },
-
         /**
          * Number of items fetched at a time from the datasource.
          */