From 7a05a85dd10d2ca61c222943d5b1bc9963fd4987 Mon Sep 17 00:00:00 2001
From: Artur Signell <artur@vaadin.com>
Date: Sat, 21 Feb 2015 00:12:09 +0200
Subject: [PATCH] Make Column.setLastFrozenColumn work (#16726)

Change-Id: I58fee1549459b24cb47e0d3321d16fb8b215959a
---
 server/src/com/vaadin/ui/Grid.java            |  2 +-
 .../server/component/grid/GridColumns.java    | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/server/src/com/vaadin/ui/Grid.java b/server/src/com/vaadin/ui/Grid.java
index 2bc42676c3..a32968bd73 100644
--- a/server/src/com/vaadin/ui/Grid.java
+++ b/server/src/com/vaadin/ui/Grid.java
@@ -2197,7 +2197,7 @@ public class Grid extends AbstractComponent implements SelectionNotifier,
         public Column setLastFrozenColumn() {
             checkColumnIsAttached();
             grid.setFrozenColumnCount(grid.getState(false).columnOrder
-                    .indexOf(this) + 1);
+                    .indexOf(getState().id) + 1);
             return this;
         }
 
diff --git a/server/tests/src/com/vaadin/tests/server/component/grid/GridColumns.java b/server/tests/src/com/vaadin/tests/server/component/grid/GridColumns.java
index 06c1b14bb6..fda662e4d9 100644
--- a/server/tests/src/com/vaadin/tests/server/component/grid/GridColumns.java
+++ b/server/tests/src/com/vaadin/tests/server/component/grid/GridColumns.java
@@ -184,6 +184,25 @@ public class GridColumns {
         assertTrue(state.footer.visible);
     }
 
+    @Test
+    public void testSetFrozenColumnCount() {
+        assertEquals("Grid should not start with a frozen column", 0,
+                grid.getFrozenColumnCount());
+        grid.setFrozenColumnCount(2);
+        assertEquals("Freezing two columns should freeze two columns", 2,
+                grid.getFrozenColumnCount());
+    }
+
+    @Test
+    public void testSetFrozenColumnCountThroughColumn() {
+        assertEquals("Grid should not start with a frozen column", 0,
+                grid.getFrozenColumnCount());
+        grid.getColumns().get(2).setLastFrozenColumn();
+        assertEquals(
+                "Setting the third column as last frozen should freeze three columns",
+                3, grid.getFrozenColumnCount());
+    }
+
     @Test
     public void testFrozenColumnRemoveColumn() {
         assertEquals("Grid should not start with a frozen column", 0,
-- 
2.39.5