diff --git a/composer.json b/composer.json
index ca5678d..b50ea47 100644
--- a/composer.json
+++ b/composer.json
@@ -24,6 +24,9 @@
 		}
 	},
 	"autoload": {
-		"psr-4": { "Nextras\\Datagrid\\": "src" }
+		"psr-4": { "Nextras\\Datagrid\\": "src" },
+		"classmap": [
+			"src/exceptions.php"
+		]
 	}
 }
diff --git a/src/Datagrid.blocks.latte b/src/Datagrid.blocks.latte
index c740e3b..f38ba09 100644
--- a/src/Datagrid.blocks.latte
+++ b/src/Datagrid.blocks.latte
@@ -88,7 +88,7 @@
 {/define}
 
 {define row-actions-edit-link}
-	<a href="{link edit! $primary}" class="ajax" data-datagrid-edit>{$control->translate(Edit)}</a>
+	<a href="{link edit! $primary}" class="ajax" data-datagrid-edit>{_}nextras.datagrid.edit.label{/_}</a>
 {/define}
 
 {define row}
@@ -160,11 +160,11 @@
 {define pagination}
 	<div class="grid-paginator">
 		{if $paginator->isFirst()}
-			<span>« {$control->translate(First)}</span>
-			<span>« {$control->translate(Previous)}</span>
+			<span>« {_}nextras.datagrid.pagination.first{/_}</span>
+			<span>« {_}nextras.datagrid.pagination.previous{/_}</span>
 		{else}
-			<a href="{link paginate!, 'page' => 1}" class="ajax">« {$control->translate(First)}</a>
-			<a href="{link paginate!, 'page' => $paginator->page - 1}" class="ajax">« {$control->translate(Previous)}</a>
+			<a href="{link paginate!, 'page' => 1}" class="ajax">« {_}nextras.datagrid.pagination.first{/_}</a>
+			<a href="{link paginate!, 'page' => $paginator->page - 1}" class="ajax">« {_}nextras.datagrid.pagination.previous{/_}</a>
 		{/if}
 
 		<span>
@@ -172,11 +172,11 @@
 		</span>
 
 		{if $paginator->isLast()}
-			<span>{$control->translate(Next)} »</span>
-			<span>{$control->translate(Last)} »</span>
+			<span>{_}nextras.datagrid.pagination.next{/_} »</span>
+			<span>{_}nextras.datagrid.pagination.last{/_} »</span>
 		{else}
-			<a href="{link paginate!, 'page' => $paginator->page + 1}" class="ajax">{$control->translate(Next)} »</a>
-			<a href="{link paginate!, 'page' => $paginator->pageCount}" class="ajax">{$control->translate(Last)} »</a>
+			<a href="{link paginate!, 'page' => $paginator->page + 1}" class="ajax">{_}nextras.datagrid.pagination.next{/_} »</a>
+			<a href="{link paginate!, 'page' => $paginator->pageCount}" class="ajax">{_}nextras.datagrid.pagination.last{/_} »</a>
 		{/if}
 	</div>
 {/define}
diff --git a/src/Datagrid.php b/src/Datagrid.php
index 12d6277..50c2c3a 100644
--- a/src/Datagrid.php
+++ b/src/Datagrid.php
@@ -13,7 +13,6 @@
 use Nette\Bridges\ApplicationLatte\Template;
 use Nette\Forms\Container;
 use Nette\Forms\Controls\Button;
-use Nette\Forms\Controls\Checkbox;
 use Nette\Utils\Html;
 use Nette\Utils\Paginator;
 use Nette\Localization\ITranslator;
@@ -250,16 +249,18 @@ public function setTranslator(ITranslator $translator)
 
 	public function getTranslator()
 	{
+		if (!$this->translator) {
+			$this->translator = new DefaultTranslator(DefaultTranslator::LANG_EN);
+		}
 		return $this->translator;
 	}
 
 
 	public function translate($s, $count = null)
 	{
-		$translator = $this->getTranslator();
-		return $translator === null || $s == null || $s instanceof Html // intentionally ==
+		return $s == null || $s instanceof Html // intentionally ==
 			? $s
-			: $translator->translate((string) $s, $count);
+			: $this->getTranslator()->translate((string) $s, $count);
 	}
 
 
@@ -268,10 +269,16 @@ public function translate($s, $count = null)
 
 	public function render()
 	{
+		if (!$this->template instanceof Template) {
+			throw new LogicException('Template must be instance of ' . Template::class);
+		}
+
 		if ($this->filterFormFactory) {
 			$this['form']['filter']->setDefaults($this->filter);
 		}
 
+		$this['form']->setTranslator($this->getTranslator());
+
 		$this->template->form = $this['form'];
 		$this->template->data = $this->getData();
 		$this->template->columns = $this->columns;
@@ -338,11 +345,11 @@ protected function getData($key = null)
 	{
 		if (!$this->data) {
 			$onlyRow = $key !== null && $this->presenter->isAjax();
-			
+
 			if ($this->orderColumn !== NULL && !isset($this->columns[$this->orderColumn])) {
 				$this->orderColumn = NULL;
 			}
-			
+
 			if (!$onlyRow && $this->paginator) {
 				$itemsCount = call_user_func(
 					$this->paginatorItemsCountCallback,
@@ -429,10 +436,10 @@ public function createComponentForm()
 		if ($this->filterFormFactory) {
 			$form['filter'] = call_user_func($this->filterFormFactory);
 			if (!isset($form['filter']['filter'])) {
-				$form['filter']->addSubmit('filter', $this->translate('Filter'));
+				$form['filter']->addSubmit('filter', 'nextras.datagrid.filter.submit');
 			}
 			if (!isset($form['filter']['cancel'])) {
-				$form['filter']->addSubmit('cancel', $this->translate('Cancel'));
+				$form['filter']->addSubmit('cancel', 'nextras.datagrid.filter.cancel');
 			}
 
 			$this->prepareFilterDefaults($form['filter']);
@@ -446,9 +453,9 @@ public function createComponentForm()
 			$form['edit'] = call_user_func($this->editFormFactory, $data);
 
 			if (!isset($form['edit']['save']))
-				$form['edit']->addSubmit('save', 'Save');
+				$form['edit']->addSubmit('save', 'nextras.datagrid.edit.save');
 			if (!isset($form['edit']['cancel']))
-				$form['edit']->addSubmit('cancel', 'Cancel');
+				$form['edit']->addSubmit('cancel', 'nextras.datagrid.edit.cancel');
 			if (!isset($form['edit'][$this->rowPrimaryKey]))
 				$form['edit']->addHidden($this->rowPrimaryKey);
 
@@ -460,19 +467,15 @@ public function createComponentForm()
 		if ($this->globalActions) {
 			$actions = array_map(function($row) { return $row[0]; }, $this->globalActions);
 			$form['actions'] = new Container();
-			$form['actions']->addSelect('action', 'Action', $actions)
-				->setPrompt('- select action -');
+			$form['actions']->addSelect('action', 'nextras.datagrid.action.label', $actions)
+				->setPrompt('nextras.datagrid.action.prompt');
 
 			$rows = [];
 			foreach ($this->getData() as $row) {
 				$rows[$this->getter($row, $this->rowPrimaryKey)] = null;
 			}
 			$form['actions']->addCheckboxList('items', '', $rows);
-			$form['actions']->addSubmit('process', 'Do');
-		}
-
-		if ($this->translator) {
-			$form->setTranslator($this->translator);
+			$form['actions']->addSubmit('process', 'nextras.datagrid.action.process');
 		}
 
 		$form->onSuccess[] = function() {}; // fix for Nette Framework 2.0.x
@@ -554,9 +557,7 @@ public function loadState(array $params)
 	protected function createTemplate($class = null)
 	{
 		$template = parent::createTemplate($class);
-		if ($translator = $this->getTranslator()) {
-			$template->setTranslator($translator);
-		}
+		$template->setTranslator($this->getTranslator());
 		return $template;
 	}
 
diff --git a/src/DefaultTranslator.php b/src/DefaultTranslator.php
new file mode 100644
index 0000000..590b903
--- /dev/null
+++ b/src/DefaultTranslator.php
@@ -0,0 +1,80 @@
+<?php
+
+/**
+ * This file is part of the Nextras community extensions of Nette Framework
+ *
+ * @license    MIT
+ * @link       https://github.com/nextras
+ */
+
+namespace Nextras\Datagrid;
+
+use Nette\Localization\ITranslator;
+use Nette\SmartObject;
+
+
+class DefaultTranslator implements ITranslator
+{
+	use SmartObject;
+
+
+	const LANG_EN = 'en';
+	const LANG_CS = 'cs';
+
+	const TRANSLATIONS = [
+		self::LANG_EN => [
+			'nextras.datagrid.filter.submit' => 'Filter',
+			'nextras.datagrid.filter.cancel' => 'Cancel',
+
+			'nextras.datagrid.edit.label' => 'Edit',
+			'nextras.datagrid.edit.save' => 'Save',
+			'nextras.datagrid.edit.cancel' => 'Cancel',
+
+			'nextras.datagrid.action.label' => 'Action',
+			'nextras.datagrid.action.prompt' => '- select action -',
+			'nextras.datagrid.action.process' => 'Do',
+
+			'nextras.datagrid.pagination.first' => 'First',
+			'nextras.datagrid.pagination.previous' => 'Previous',
+			'nextras.datagrid.pagination.next' => 'Next',
+			'nextras.datagrid.pagination.last' => 'Last',
+		],
+		self::LANG_CS => [
+			'nextras.datagrid.filter.submit' => 'Filtrovat',
+			'nextras.datagrid.filter.cancel' => 'Zrušit',
+
+			'nextras.datagrid.edit.label' => 'Upravit',
+			'nextras.datagrid.edit.save' => 'Uložit',
+			'nextras.datagrid.edit.cancel' => 'Zrušit',
+
+			'nextras.datagrid.action.label' => 'Akce',
+			'nextras.datagrid.action.prompt' => '- zvolte akci -',
+			'nextras.datagrid.action.process' => 'OK',
+
+			'nextras.datagrid.pagination.first' => 'První',
+			'nextras.datagrid.pagination.previous' => 'Poslední',
+			'nextras.datagrid.pagination.next' => 'Další',
+			'nextras.datagrid.pagination.last' => 'Předchozí',
+		],
+	];
+
+
+	/** @var string */
+	private $language;
+
+
+	public function __construct($language)
+	{
+		if (!isset(self::TRANSLATIONS[$language])) {
+			throw new InvalidArgumentException("Unsupported language '$language'");
+		}
+		$this->language = $language;
+	}
+
+
+	public function translate($message, $count = NULL)
+	{
+		return isset(self::TRANSLATIONS[$this->language][$message]) ? self::TRANSLATIONS[$this->language][$message] : $message;
+	}
+
+}
diff --git a/src/exceptions.php b/src/exceptions.php
new file mode 100644
index 0000000..33a9616
--- /dev/null
+++ b/src/exceptions.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * This file is part of the Nextras community extensions of Nette Framework
+ *
+ * @license    MIT
+ * @link       https://github.com/nextras
+ */
+
+namespace Nextras\Datagrid;
+
+
+class InvalidArgumentException extends \InvalidArgumentException
+{
+}
+
+
+class LogicException extends \LogicException
+{
+}