--- a/app/model/Messung.js	Wed Feb 17 14:25:40 2016 +0100
+++ b/app/model/Messung.js	Thu Feb 18 11:16:55 2016 +0100
@@ -76,6 +76,15 @@
             }
             return value;
         }
+    }, {
+        name: 'statusWert',
+        persist: false
+    }, {
+        name: 'messwerteCount',
+        persist: false
+    }, {
+        name: 'kommentarCount',
+        persist: false
     }],
 
     idProperty: 'id',

--- a/app/view/grid/Messung.js	Wed Feb 17 14:25:40 2016 +0100
+++ b/app/view/grid/Messung.js	Thu Feb 18 11:16:55 2016 +0100
@@ -81,15 +81,19 @@
         }, {
             header: 'Status',
             flex: 1,
-            dataIndex: 'id',
-            renderer: function(value) {
-                var statusId = this.store.getById(value).get('status');
-                var divId = 'messung-status-item' + value;
+            dataIndex: 'statusWert',
+            renderer: function(value, meta, record, rNdx, cNdx) {
+                var statusId = record.get('status');
+                var mId = record.get('id');
                 //also fwd the record to the asynchronous loading of statuswerte
                 // in order to add the statuswert to the record,
                 // after the grid was rendered...
-                this.updateStatus(value, divId, statusId, this.store.getById(value));
-                return '<div id="' + divId + '">Lade...</div>';
+                if (value === '') {
+                    this.updateStatus(mId, statusId, record);
+                    return 'Lade...';
+                }
+                var sta = Ext.data.StoreManager.getByKey('statuswerte');
+                return sta.getById(value).get('wert');
             }
         }, {
             header: 'OK-Flag',
@@ -110,21 +114,27 @@
             // Gibt die Anzahl der Messwerte wieder,
             // NICHT die Anzahl der verschiedenen Nukleide
             // Eventuell ist die Bezeichnug daher irreführend
-            dataIndex: 'id',
+            dataIndex: 'messwerteCount',
             flex: 1,
-            renderer: function(value) {
-                var id = 'messung-nuklid-item' + value;
-                this.updateNuklide(value, id);
-                return '<div id="' + id + '">Lade...</div>';
+            renderer: function(value, meta, record) {
+                if (value === '') {
+                    var mId = record.get('id');
+                    this.updateNuklide(mId, record);
+                    return 'Lade...';
+                }
+                return value;
             }
         }, {
             header: 'Anzahl Kommentare',
             flex: 1,
-            dataIndex: 'id',
-            renderer: function(value) {
-                var id = 'messung-kommentar-item' + value;
-                this.updateKommentare(value, id);
-                return '<div id="' + id + '">Lade...</div>';
+            dataIndex: 'kommentarCount',
+            renderer: function(value, meta, record) {
+                if (value === '') {
+                    var mId = record.get('id');
+                    this.updateKommentare(mId, record);
+                    return 'Lade...';
+                }
+                return value;
             }
         }];
         this.listeners = {
@@ -160,12 +170,12 @@
      * Load the statusstore,
      * afterwards: retrieve the statusid
      */
-    updateStatus: function(value, divId, statusId, record) {
+    updateStatus: function(value, statusId, record) {
         var statusStore = Ext.create('Lada.store.Status');
         statusStore.on('load',
             this.updateStatusColumn,
             this,
-            {divId: divId, statusId: statusId, record: record});
+            {statusId: statusId, record: record});
         statusStore.load({
             params: {
                 messungsId: value
@@ -173,28 +183,28 @@
         });
     },
 
-    updateNuklide: function(value, divId) {
+    updateNuklide: function(id, record) {
         var messwerte = Ext.create('Lada.store.Messwerte');
         messwerte.on('load',
             this.updateColumn,
             this,
-            {divId: divId});
+            {record: record, type: 'messwerteCount'});
         messwerte.load({
             params: {
-                messungsId: value
+                messungsId: id
             }
         });
     },
 
-    updateKommentare: function(value, divId) {
+    updateKommentare: function(id, record) {
         var kommentare = Ext.create('Lada.store.MKommentare');
         kommentare.on('load',
             this.updateColumn,
             this,
-            {divId: divId});
+            {record: record, type: 'kommentarCount'});
         kommentare.load({
             params: {
-                messungsId: value
+                messungsId: id
             }
         });
     },
@@ -212,7 +222,9 @@
         else {
             value = 'k.A.';
         }
-        Ext.fly(opts.divId).update(value);
+        opts.record.beginEdit();
+        opts.record.set(opts.type, value);
+        opts.record.endEdit();
     },
 
     /**
@@ -230,37 +242,9 @@
                 //add the determined statuswert to the record.
                 // this is necessary to let the controller determine
                 // which actions are allowed.
-                opts.record.data.statusWert = value;
-            }
-        }
-        if (Ext.fly(opts.divId)) {
-            //Try to get the statuswerte store,
-            // If it does not  exist, create a new one.
-            var sta = Ext.data.StoreManager.getByKey('statuswerte');
-            var val = 'error';
-            if (!sta) {
-                // Set the Data asynchronously
-                sta = Ext.create('Lada.store.StatusWerte');
-                sta.load({
-                    scope: this,
-                    callback: function(records, operation, success) {
-                        if (success) {
-                            var item = sta.getById(value);
-                            if (item) {
-                                val = item.get('wert');
-                            }
-                        }
-                        Ext.fly(opts.divId).update(val);
-                    }
-                });
-            }
-            else {
-                // set the data
-                var item = sta.getById(value);
-                if (item) {
-                    val = item.get('wert');
-                }
-                Ext.fly(opts.divId).update(val);
+                opts.record.beginEdit();
+                opts.record.set('statusWert', value);
+                opts.record.endEdit();
             }
         }
     },