Index: trunk/core/units/general/cat_dbitem_export.php
===================================================================
diff -u -r3616 -r3629
--- trunk/core/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3616)
+++ trunk/core/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3629)
@@ -192,6 +192,9 @@
 					}
 					else {
 						$check_fields = $this->exportOptions['DuplicateCheckFields'] ? explode('|', substr($this->exportOptions['DuplicateCheckFields'], 1, -1)) : Array();
+						foreach ($check_fields as $index => $check_field) {
+							// get field name from kMultilanguage formatter
+						}
 					}
 					
 					if (!$check_fields) {
@@ -322,6 +325,10 @@
 			
 			if ($this->exportOptions['start_from'] == 0) // first export step
 			{
+				if (!getArrayValue($this->exportOptions, 'IsBaseCategory')) {
+					$this->exportOptions['IsBaseCategory'] = 0;
+				}
+				
 				if ($this->exportOptions['IsBaseCategory'] ) {
 					$sql = 'SELECT CachedNavbar
 							FROM '.TABLE_PREFIX.'Category
@@ -358,7 +365,7 @@
 				$data_array = Array();
 				foreach ($this->exportFields as $export_field)
 				{
-					$data_array =  array_merge($data_array, $this->getFieldValue($export_field) );
+					$data_array = array_merge($data_array, $this->getFieldValue($export_field) );
 				}
 				$this->writeRecord($data_array);
 				$records_exported++;
@@ -752,7 +759,7 @@
 						FROM '.TABLE_PREFIX.'Category
 						WHERE CategoryId = '.$category_id;
 				$category_path = $this->Conn->GetOne($sql);
-				$category_path = explode('>', $category_path);
+				$category_path = $category_path ? explode('>', $category_path) : Array();
 				
 				if ($this->exportOptions['IsBaseCategory']) {
 					$i = $this->exportOptions['BaseLevel'];
Index: trunk/kernel/units/general/cat_event_handler.php
===================================================================
diff -u -r3616 -r3629
--- trunk/kernel/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3616)
+++ trunk/kernel/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3629)
@@ -1064,7 +1064,21 @@
 	 */
 	function OnExport(&$event)
 	{
-		$selected_ids = $this->Application->GetVar('linklist');
+		// use old fasion (in-portal) grid
+		$selector_name = $this->Application->getUnitOption($event->Prefix, 'CatalogSelectorName');
+		if ($selector_name) {
+			$selected_ids = $this->Application->GetVar($selector_name);
+		}
+		else {
+			$this->StoreSelectedIDs($event);
+			$selected_ids = $this->getSelectedIDs($event);
+			
+			if (implode(',', $selected_ids) == '') {
+				// K4 fix when no ids found bad selected ids array is formed
+				$selected_ids = false;
+			}
+		}
+		
 		$selected_cats_ids = $this->Application->GetVar('export_categories');
 
 		$this->Application->StoreVar($event->Prefix.'_export_ids', $selected_ids ? implode(',', $selected_ids) : '' );
Index: trunk/core/units/general/cat_event_handler.php
===================================================================
diff -u -r3616 -r3629
--- trunk/core/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3616)
+++ trunk/core/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3629)
@@ -1064,7 +1064,21 @@
 	 */
 	function OnExport(&$event)
 	{
-		$selected_ids = $this->Application->GetVar('linklist');
+		// use old fasion (in-portal) grid
+		$selector_name = $this->Application->getUnitOption($event->Prefix, 'CatalogSelectorName');
+		if ($selector_name) {
+			$selected_ids = $this->Application->GetVar($selector_name);
+		}
+		else {
+			$this->StoreSelectedIDs($event);
+			$selected_ids = $this->getSelectedIDs($event);
+			
+			if (implode(',', $selected_ids) == '') {
+				// K4 fix when no ids found bad selected ids array is formed
+				$selected_ids = false;
+			}
+		}
+		
 		$selected_cats_ids = $this->Application->GetVar('export_categories');
 
 		$this->Application->StoreVar($event->Prefix.'_export_ids', $selected_ids ? implode(',', $selected_ids) : '' );
Index: trunk/kernel/admin/include/toolbar/browse.php
===================================================================
diff -u -r3543 -r3629
--- trunk/kernel/admin/include/toolbar/browse.php	(.../browse.php)	(revision 3543)
+++ trunk/kernel/admin/include/toolbar/browse.php	(.../browse.php)	(revision 3629)
@@ -550,6 +550,10 @@
 			action_prefix = activeTab.getAttribute("ActionPrefix");
 			if (page.length == 0) page = activeTab.getAttribute("EditURL");
        
+			if (actionValue == 'export') {
+				save_selected_categories('export_categories');
+			}
+			
 			if ( action_prefix.match("k4:(.*)") )
 			{
 				act = RegExp.$1;
@@ -558,9 +562,8 @@
 				eval(act);
 				return;
 			}
-			else if(actionValue == 'import' || actionValue == 'export')
+			else if(actionValue == 'export')
 			{
-				save_selected_categories('export_categories');
 				return k4_actionHandler(actionValue, activeTab.getAttribute("PrefixSpecial"));
 			}
 		}
Index: trunk/kernel/units/general/cat_dbitem_export.php
===================================================================
diff -u -r3616 -r3629
--- trunk/kernel/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3616)
+++ trunk/kernel/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3629)
@@ -192,6 +192,9 @@
 					}
 					else {
 						$check_fields = $this->exportOptions['DuplicateCheckFields'] ? explode('|', substr($this->exportOptions['DuplicateCheckFields'], 1, -1)) : Array();
+						foreach ($check_fields as $index => $check_field) {
+							// get field name from kMultilanguage formatter
+						}
 					}
 					
 					if (!$check_fields) {
@@ -322,6 +325,10 @@
 			
 			if ($this->exportOptions['start_from'] == 0) // first export step
 			{
+				if (!getArrayValue($this->exportOptions, 'IsBaseCategory')) {
+					$this->exportOptions['IsBaseCategory'] = 0;
+				}
+				
 				if ($this->exportOptions['IsBaseCategory'] ) {
 					$sql = 'SELECT CachedNavbar
 							FROM '.TABLE_PREFIX.'Category
@@ -358,7 +365,7 @@
 				$data_array = Array();
 				foreach ($this->exportFields as $export_field)
 				{
-					$data_array =  array_merge($data_array, $this->getFieldValue($export_field) );
+					$data_array = array_merge($data_array, $this->getFieldValue($export_field) );
 				}
 				$this->writeRecord($data_array);
 				$records_exported++;
@@ -752,7 +759,7 @@
 						FROM '.TABLE_PREFIX.'Category
 						WHERE CategoryId = '.$category_id;
 				$category_path = $this->Conn->GetOne($sql);
-				$category_path = explode('>', $category_path);
+				$category_path = $category_path ? explode('>', $category_path) : Array();
 				
 				if ($this->exportOptions['IsBaseCategory']) {
 					$i = $this->exportOptions['BaseLevel'];