diff --git a/module/custom/control.php b/module/custom/control.php
index 444ec5d9e7..60ea9a794a 100644
--- a/module/custom/control.php
+++ b/module/custom/control.php
@@ -115,14 +115,34 @@ class custom extends control
             {
                 foreach($_POST['keys'] as $index => $key)
                 {
-                    /* Fix bug #942. */
                     if(!empty($key)) $key = trim($key);
-                    if($field == 'priList' and !is_numeric($key) or $key > 255) die(js::alert($this->lang->custom->notice->priListKey));
-                    if($module == 'bug' and $field == 'severityList' and !is_numeric($key)) die(js::alert($this->lang->custom->notice->severityListKey));
-                    if(!empty($key) and $key != 'n/a' and !validater::checkREG($key, '/^[a-z_0-9]+$/')) die(js::alert($this->lang->custom->notice->keyList));
+                    /* Invalid key. It should be numbers. (It includes severityList in bug module and priList in stroy, task, bug, testcasea, testtask and todo module.) */
+                    if($field == 'priList' or $field == 'severityList')
+                    {
+                        if(!is_numeric($key) or $key > 255) die(js::alert($this->lang->custom->notice->invalidNumberKey));
+                    }
+                    if(!empty($key) and $key != 'n/a' and !validater::checkREG($key, '/^[a-z_0-9]+$/')) die(js::alert($this->lang->custom->notice->invalidStringKey));
 
-                    /* the length of role is 20, check it when save. */
-                    if($module == 'user' and $field == 'roleList' and strlen($key) > 10) die(js::alert($this->lang->custom->notice->userRole));
+                    /* The length of role is 10, check it when saved. */
+                    if($field == 'roleList' or $module == 'todo' and $field == 'typeList')
+                    {
+                        if(strlen($key) > 10) die(js::alert($this->lang->custom->notice->invalidStrlen['ten']));
+                    }
+                    
+                    /* The length of these string is litter than 20, check it when saved. */
+                    if($field == 'sourceList' or $module == 'task' and $field == 'typeList')
+                    {
+                        if(strlen($key) > 20) die(js::alert($this->lang->custom->notice->invalidStrlen['twenty']));
+                    }
+                    
+                    /* The length of stageList is 255, check it when saved. */
+                    if($module == 'testcase' and $field == 'stageList' and strlen($key) > 255) die(js::alert($this->lang->custom->notice->invalidStrlen['twoHundred']));
+                    
+                    /* The length of these string is litter than 30, check it when saved. */
+                    if($module == 'bug' or $field == 'reasonList' or $module == 'testcase')
+                    {
+                        if(strlen($key) > 30) die(js::alert($this->lang->custom->notice->invalidStrlen['thirty']));
+                    }
                 }
 
                 $lang = $_POST['lang'];
diff --git a/module/custom/lang/en.php b/module/custom/lang/en.php
index 9885d04370..43e024974e 100644
--- a/module/custom/lang/en.php
+++ b/module/custom/lang/en.php
@@ -83,18 +83,22 @@ $lang->custom->allLang     = 'All Language';
 $lang->custom->confirmRestore = 'Do you want to reset to Default?';
 
 $lang->custom->notice = new stdclass();
-$lang->custom->notice->userRole             = 'Key must be no more than 10 characters!';
 $lang->custom->notice->canNotAdd            = 'These items are parameters of calculation, so customized creation is not enabled.';
 $lang->custom->notice->forceReview          = '%s Review is required for certain submitters.';
 $lang->custom->notice->forceNotReview       = "%s Review is NOT required for certain submitters.";
 $lang->custom->notice->longlife             = 'Define shelved bugs.';
-$lang->custom->notice->priListKey           = 'Priority list key should be a natural and not greater than 255.';
-$lang->custom->notice->keyList              = 'The key should be a combination of lowercase English letters, numbers or underscores';
-$lang->custom->notice->severityListKey      = 'Bug severity list key should be numbers.';
+$lang->custom->notice->invalidNumberKey     = 'Priority list key should be a natural and not greater than 255.';
+$lang->custom->notice->invalidStringKey     = 'The key should be a combination of lowercase English letters, numbers or underscores';
+
 $lang->custom->notice->indexPage['product'] = "ZenTao 8.2+ has Product Homepage. Do you want to go to Product Homepage?";
 $lang->custom->notice->indexPage['project'] = "ZenTao 8.2+ has Project Homepage. Do you want to go to Project Homepage?";
 $lang->custom->notice->indexPage['qa']      = "ZenTao 8.2+ has QA Homepage. Do you want to go to QA Homepage?";
 
+$lang->custom->notice->invalidStrlen['ten']        = 'The length of the key must be less than 10 characters.';
+$lang->custom->notice->invalidStrlen['twenty']     = 'The length of the key must be less than 20 characters.';
+$lang->custom->notice->invalidStrlen['thirty']     = 'The length of the key must be less than 30 characters.';
+$lang->custom->notice->invalidStrlen['twoHundred'] = 'The length of the key must be less than 225 characters.';
+
 $lang->custom->storyReview    = 'Review';
 $lang->custom->forceReview    = 'Selective Review';
 $lang->custom->forceNotReview = 'No review';
diff --git a/module/custom/lang/zh-cn.php b/module/custom/lang/zh-cn.php
index 4022d5052a..aa87bf6d01 100644
--- a/module/custom/lang/zh-cn.php
+++ b/module/custom/lang/zh-cn.php
@@ -83,17 +83,21 @@ $lang->custom->allLang     = '适用所有语言';
 $lang->custom->confirmRestore = '是否要恢复默认配置？';
 
 $lang->custom->notice = new stdclass();
-$lang->custom->notice->userRole             = '键的长度必须小于10个字符！';
-$lang->custom->notice->canNotAdd            = '该项参与运算，不提供自定义添加功能';
-$lang->custom->notice->forceReview          = "指定人提交的%s必须评审。";
-$lang->custom->notice->forceNotReview       = "指定人提交的%s不需要评审。";
-$lang->custom->notice->longlife             = 'Bug列表页面的久未处理标签中，列出设置天数之前未处理的Bug。';
-$lang->custom->notice->priListKey           = '优先级的键应当为不大于255的自然数';
-$lang->custom->notice->keyList              = '键值应当为小写英文字母、数字或下划线的组合';
-$lang->custom->notice->severityListKey      = 'Bug严重程度的键应当为数字！';
-$lang->custom->notice->indexPage['product'] = "从8.2版本起增加了产品主页视图，是否默认进入产品主页？";
-$lang->custom->notice->indexPage['project'] = "从8.2版本起增加了项目主页视图，是否默认进入项目主页？";
-$lang->custom->notice->indexPage['qa']      = "从8.2版本起增加了测试主页视图，是否默认进入测试主页？";
+$lang->custom->notice->canNotAdd                   = '该项参与运算，不提供自定义添加功能';
+$lang->custom->notice->forceReview                 = "指定人提交的%s必须评审。";
+$lang->custom->notice->forceNotReview              = "指定人提交的%s不需要评审。";
+$lang->custom->notice->longlife                    = 'Bug列表页面的久未处理标签中，列出设置天数之前未处理的Bug。';
+$lang->custom->notice->invalidNumberKey            = '键值应为不大于255的数字';
+$lang->custom->notice->invalidStringKey            = '键值应当为小写英文字母、数字或下划线的组合';
+
+$lang->custom->notice->indexPage['product']        = "从8.2版本起增加了产品主页视图，是否默认进入产品主页？";
+$lang->custom->notice->indexPage['project']        = "从8.2版本起增加了项目主页视图，是否默认进入项目主页？";
+$lang->custom->notice->indexPage['qa']             = "从8.2版本起增加了测试主页视图，是否默认进入测试主页？";
+
+$lang->custom->notice->invalidStrlen['ten']        = '键的长度必须小于10个字符！';
+$lang->custom->notice->invalidStrlen['twenty']     = '键的长度必须小于20个字符！';
+$lang->custom->notice->invalidStrlen['thirty']     = '键的长度必须小于30个字符！';
+$lang->custom->notice->invalidStrlen['twoHundred'] = '键的长度必须小于225个字符！';
 
 $lang->custom->storyReview    = '评审流程';
 $lang->custom->forceReview    = '强制评审';
diff --git a/module/product/control.php b/module/product/control.php
index e67e58c5ce..113f37dd8f 100644
--- a/module/product/control.php
+++ b/module/product/control.php
@@ -273,7 +273,7 @@ class product extends control
 
         $this->product->setMenu($this->products, $productID);
 
-        $product  = $this->product->getStatByID($productID);
+        $product = $this->product->getById($productID);
         $this->view->title      = $this->lang->product->edit . $this->lang->colon . $product->name;
         $this->view->position[] = html::a($this->createLink($this->moduleName, 'browse'), $product->name);
         $this->view->position[] = $this->lang->product->edit;
@@ -390,7 +390,7 @@ class product extends control
     {
         $this->product->setMenu($this->products, $productID);
 
-        $product  = $this->product->getStatByID($productID);
+        $product = $this->product->getStatByID($productID);
         $product->desc = $this->loadModel('file')->setImgSize($product->desc);
         if(!$product) die(js::error($this->lang->notFound) . js::locate('back'));
 
diff --git a/module/task/control.php b/module/task/control.php
index 25ca78910b..d380ad317e 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -225,21 +225,23 @@ class task extends control
         $position[] = $this->lang->task->common;
         $position[] = $this->lang->task->batchCreate;
 
+        if($isChildren) $this->view->parentTitle = $this->dao->select('name')->from(TABLE_TASK)->where('id')->eq($taskID)->fetch('name');
+
         $this->view->title      = $title;
         $this->view->position   = $position;
         $this->view->project    = $project;
         $this->view->stories    = $stories;
         $this->view->modules    = $modules;
         $this->view->parent     = $taskID;
-        $this->view->storyID    = $storyID;
         $this->view->isChildren = $isChildren;
+        $this->view->storyID    = $storyID;
         $this->view->story      = $this->story->getByID($storyID);
         $this->view->storyTasks = $this->task->getStoryTaskCounts(array_keys($stories), $projectID);
         $this->view->members    = $members;
         $this->view->moduleID   = $moduleID;
         $this->display();
     }
-
+    
     /**
      * Common actions of task module.
      *
diff --git a/module/task/view/batchcreate.html.php b/module/task/view/batchcreate.html.php
index 5aca5baa16..525059619a 100644
--- a/module/task/view/batchcreate.html.php
+++ b/module/task/view/batchcreate.html.php
@@ -15,7 +15,7 @@
 <div id='titlebar'>
   <div class='heading'>
     <span class='prefix'><?php echo html::icon($lang->icons['task']);?></span>
-    <strong><small class='text-muted'><?php echo html::icon($lang->icons['batchCreate']);?></small> <?php echo $isChildren ? $lang->task->batchCreateChildren : $lang->task->batchCreate;?></strong>
+    <strong><small class='text-muted'><?php echo html::icon($lang->icons['batchCreate']);?></small> <?php echo $isChildren ? $parentTitle . '&nbsp; ' . $lang->task->batchCreateChildren : $lang->task->batchCreate;?></strong>
       <?php if($project->type != 'ops'):?><span><small><a href='javascript:toggleZeroTaskStory();' id='zeroTaskStory'><?php echo $lang->story->zeroTask;?><i class='icon icon-remove'></i></a></small></span><?php endif;?>
     <div class='actions'>
       <?php echo html::commonButton($lang->pasteText, "data-toggle='myModal'", 'btn btn-primary')?>