How to: Create a Custom List Definition

This task demonstrates how to create a custom list template feature and add it to the selection of lists available for creating on theCreate Page. Adding a custom list feature requires that you provide at least the following three files:

• Feature.xml registers the list template.

• Elements.xml adds the list template to the Create Page.

• Schema.xml defines the list schema, which includes content type associations, field and view definitions, and form and toolbar references.

Procedures

To add a custom list definition to a Web site

1. Create a folder in Local_Drive:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATES\FEATURES and give it an appropriate name, such as SimpleListFeature.

2. In the new folder create a Feature.xml file that specifies the title, ID, and scope for the Feature, as well as the location of an Elements.xml file, such as follows:

   <Feature   Title="Simple List Feature"   Id="80E23615-3145-4f43-BD5E-8524C02BD6CD"   Scope="Web"   xmlns="http://schemas.microsoft.com/sharepoint/">  <ElementManifests>    <ElementManifest Location="Elements.xml" />  </ElementManifests></Feature>

   
   
3. To replace the GUID placeholder in the previousId attribute, generate a GUID by running guidgen.exe, located inLocal_Drive:\Program Files\Microsoft Visual Studio 8\Common7\Tools.

4. In the new folder create an Elements.xml file that identifies the list template and specifies information to display on theCreate Page. Give it a Type value that is above 10000 and different from any other custom list definitions used in your deployment:

   <Elements   xmlns="http://schemas.microsoft.com/sharepoint/">  <ListTemplate     Name="SimpleList"     DisplayName="Simple List"     Type="10001"     Description="This is my simple list."     BaseType="0"     OnQuickLaunch="FALSE"     SecurityBits="11" /></Elements>

   
   
5. Create a subfolder that has the same name as that assigned to the list template in the previous step, for example, SimpleList.

6. Create a Schema.xml file in the new subfolder to define the list. You can copy and modify the Schema.xml file of an existing list Feature to define special fields for a custom list definition.

7. At a command prompt, type the following commands to install the Feature in the deployment, and then activate the Feature on a specified subsite.

    

      a. stsadm -o installfeature -filename SimpleListFeature\Feature.xml   b. stsadm -o activatefeature -name SimpleListFeature -url http://Server/Site/Subsite

   
   
8. To test the new Feature, navigate to theCreate Page and create a list through the template.

Schema.xml File

Define any custom fields that are required for your list near the beginning of theSchema.xml file. The following example, which copies and modifies the Schema.xml file of the defaultCustomList Feature, defines a special Choice field for the SimpleList Feature and adds this field to theItem content type so that the field is displayed in item forms.

To customize the Item content type definition, find the following content type declaration near the beginning of your copied Schema.xml file:

<ContentTypeRef ID="0x01">  <Folder TargetName="Item" /></ContentTypeRef>

Replace this content type declaration with theItem content type definition whose ID equals 0X01 in the ctypeswss.xml file that is located atC:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\ctypes.

Add a reference for your custom field to the content type definition, which in this example is called FavoriteColor. Also include the defaultFolder element to specify the resource folder for the content type. Create a unique ID for your content type as described inContent Type IDs. Use guidgen.exe as describe previously in step 3 to create GUIDs for the content type ID and for the field reference.

<List Name="SimpleList" Title="Simple List" BaseType="0" Direction="" Url="">  <MetaData>    <ContentTypes>  <!--Copy the referenced ContentType definition from ctypeswss.xml.-->      <ContentType         ID="0x010099FE4F3ACD494e30A36693F9EE65BAF2"        Name="FavoriteColor Item"        Group="$Resources:List_Content_Types"        Description="Favorite color item content type."        Version="0">        <FieldRefs>          <FieldRef             ID="{fa564e0f-0c70-4ab9-b863-0177e6ddd247}"             Name="Title"             Required="TRUE"             ShowInNewForm="TRUE"             ShowInEditForm="TRUE"/>           <!--Add a field reference for the custom field.-->          <FieldRef            ID="{AD22016D-BC8B-4631-A0A3-5E84C6CFA7EC}"             Name="FavoriteColor"             Required="TRUE"             ShowInNewForm="TRUE"             ShowInEditForm="TRUE"/>        </FieldRefs>        <XmlDocuments>          <XmlDocument NamespaceURI="http://schemas.microsoft.com/sharepoint/v3/contenttype/forms">            <FormTemplates xmlns="http://schemas.microsoft.com/sharepoint/v3/contenttype/forms">              <Display>ListForm</Display>              <Edit>ListForm</Edit>              <New>ListForm</New>            </FormTemplates>          </XmlDocument>        </XmlDocuments>        <!--Include the relative folder path for the content type resource folder.-->        <Folder           TargetName="Item" />      </ContentType>      <ContentTypeRef         ID="0x0120" />    </ContentTypes>

In the empty Fields tag that follows theContentTypes section ofSchema.xml, add a field definition for the FavoriteColorChoice field, as follows:

    <Fields>      <Field         Type="Choice"         Name="FavoriteColor"         DisplayName="Favorite Color">        <CHOICES>          <CHOICE>Red</CHOICE>          <CHOICE>Green</CHOICE>          <CHOICE>Blue</CHOICE>        </CHOICES>      </Field>    </Fields>    <Views>      ...

Add a reference to the custom field in the ViewFields section of a view definition so that the field is displayed in the view. The following example adds a FavoriteColor field reference to the standard all items view.

<ViewFields>  <FieldRef Name="Attachments"/>  <FieldRef Name="LinkTitle"/>  <FieldRef Name="FavoriteColor"/></ViewFields>

 

 http://msdn.microsoft.com/en-us/library/ms466023(v=office.12).aspx