From 80feb8c0b4b581255315e0f99fe8a77385302ba7 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Mon, 14 Jan 2013 16:32:31 +0100
Subject: [PATCH] Respect displayFields in GridFieldPrintButton

Provides more coherent and expected default behaviour
---
 forms/gridfield/GridFieldPrintButton.php | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/forms/gridfield/GridFieldPrintButton.php b/forms/gridfield/GridFieldPrintButton.php
index 602001c28..9be52fff0 100644
--- a/forms/gridfield/GridFieldPrintButton.php
+++ b/forms/gridfield/GridFieldPrintButton.php
@@ -91,9 +91,14 @@ class GridFieldPrintButton implements GridField_HTMLProvider, GridField_ActionPr
 	 * Export core.
  	 */
 	public function generatePrintData($gridField) {
-		$printColumns = ($this->printColumns)
-			? $this->printColumns
-			: singleton($gridField->getModelClass())->summaryFields();
+		if($this->printColumns) {
+			$printColumns = $this->printColumns;
+		} else if($dataCols = $gridField->getConfig()->getComponentByType('GridFieldDataColumns')) {
+			$printColumns = $dataCols->getDisplayFields($gridField);
+		} else {
+			$printColumns = singleton($gridField->getModelClass())->summaryFields();
+		}
+		
 		$header = null;
 		if($this->printHasHeader){
 			$header = new ArrayList();