From 86d65e32cbff7b0dbd96fa3a8574b0b4b2ff64a0 Mon Sep 17 00:00:00 2001
From: Alan Knowles <alan@roojs.com>
Date: Thu, 7 May 2020 15:18:10 +0800
Subject: [PATCH] Roo/grid/Grid.js

---
 Roo/grid/Grid.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Roo/grid/Grid.js b/Roo/grid/Grid.js
index 14d4a7a111..18bd6eb68b 100644
--- a/Roo/grid/Grid.js
+++ b/Roo/grid/Grid.js
@@ -509,7 +509,16 @@ Roo.extend(Roo.grid.Grid, Roo.util.Observable, {
      */
     addColumn : function(cfg, pos)
     {
-        cfg.id = typeof(cfg.id) == 'undefined' : Roo.id() : cfg.id; // don't normally use this..
+        cfg.id = typeof(cfg.id) == 'undefined' ? Roo.id() : cfg.id; // don't normally use this..
+        this.cm.lookup[cfg.id] = cfg;
+        if (typeof(pos) == 'undefined' || pos >= this.cm.config.length) {
+            this.cm.config.push(cfg);
+            return;
+        }
+        // slice
+        pos = Math.max(0,pos);
+        
+        this.cm.config.splice(pos, 0, cfg);
         
         
     }
-- 
2.39.2