I have the following GamesPage...

1. How can i make the Tags display like on the Blog? When you put a comma between them that they are seperated? And that you can click them? I guess i need a GamesTagesPage for this but how do i do this?

2. Category, i want this to be a fixed selection (like: category 1, category 2, category 3) how do i do this?

<?php
/**
 * Defines the GamesPage page type
 */
class GamesPage extends Page {
   static $db = array(
      'Category' => 'Text',
   	  'Tags' => 'Text',
   	  'Description' => 'Text',
   	  'Instructions' => 'Text'
   );
   static $has_one = array(
	  'Photo' => 'Image'
   );
   
   function getCMSFields() {
   $fields = parent::getCMSFields();
 
   $fields->addFieldToTab('Root.Content.Main', new Textfield('Category'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Tags'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Description'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Instructions'), 'Content');
   $fields->addFieldToTab('Root.Content.Images', new ImageField('Photo'));
    	
 	return $fields;
}
	static $icon = "themes/Vista/images/treeicons/games";
	
	static $defaults = array(
   		'ProvideComments' => true
		);

}
 
class GamesPage_Controller extends Page_Controller {
 
}
 
?>

Anyone?

1. Look into the blogmodule. Reading lines 92-110 in BlogEntry.php, TagCloudWidget.ss and lines 8-15 in BlogEntry.ss will learn you alot.
2. I don't really understand what you want to do. But you might want to look here: http://doc.silverstripe.org/doku.php?id=form-field-types and try something with CheckboxSetField, OptionSetField and DropdownField.

I want to have a dropdownmenu for category in the cms.

I will look into the links you've send me, thnx.

Oke That's gone work!

2 more questions though about the same first post ;)

1. How can i make the field with "Instructions" have more lines? I tried something with: http://doc.silverstripe.org/doku.php?id=textareafield but that didn't work at all...

2. How can i show my Categories on a GamesHolder.ss page? So that the are clickable aswell? So first a summary and then you can click on them

New GamesHolder.php

<?php
/**
 * Defines the GamesPage page type
 */
class GamesPage extends Page {
   static $db = array(
      'Category' => 'Varchar(100)',
   	  'Tags' => 'Text',
   	  'Description' => 'Text',
   	  'Instructions' => 'Text'
   );
   static $has_one = array(
	  'Photo' => 'Image'
   );
   
   function getCMSFields() {
   $fields = parent::getCMSFields();
 
 	// Category Array
	$array = array(
 	 'Klassiekers' => 'Klassiekers',
  	 'US' => 'United States',
	 'US' => 'United States',
	 'US' => 'United States',
	 'US' => 'United States',
	 'US' => 'United States',
	 'US' => 'United States'
	);
 
   $fields->addFieldToTab('Root.Content.Main', new DropdownField('Category', 'Category', $array), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Tags', 'Tags (comma sep.)'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Description'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Instructions'), 'Content');
   $fields->addFieldToTab('Root.Content.Images', new ImageField('Photo'));
    	
 	return $fields;
}

	/**
	 * Returns the tags added to this games entry
	 */
	function TagsCollection() {
		$tags = split(" *, *", trim($this->Tags));
		$output = new DataObjectSet();
		
		foreach($tags as $tag) {
			$output->push(new ArrayData(array(
				'Tag' => $tag,
				'Link' => $this->getParent()->Link() . 'tag/' . urlencode($tag)
			)));
		}
		
		if($this->Tags) {
			return $output;
		}
	}


	static $icon = "themes/Vista/images/treeicons/games";
	
	static $defaults = array(
   		'ProvideComments' => true
		);

}
 
class GamesPage_Controller extends Page_Controller {
 
}
 
?>