Working with Single
list item
Sitecore.Data.Fields.ReferenceField refDroplinkField = current.Fields
["Drop Link Field"];
Sitecore.Data.Fields.ReferenceField
refDroplistField = current.Fields["Drop List Field"];
Sitecore.Data.Fields.ReferenceField
refGroupedDroplinkField = current.Fields ["Grouped Droplink Field"];
Sitecore.Data.Fields.ReferenceField
refGroupedDroplistField = current.Fields ["Grouped Droplist Field"];
Sitecore.Data.Fields.ReferenceField
refDroptreeField = current.Fields ["Drop Tree Field"];
if (refDroptreeField != null
&& refDroptreeField.TargetItem != null)
{
//ltPageData.Text =
refDroplinkField.TargetItem.Fields["Category Name"].Value;
//ltPageData.Text =
refDroplistField.Path;
//ltPageData.Text =
refGroupedDroplinkField.TargetItem.Fields["Category Name"].Value;
// ltPageData.Text =
refGroupedDroplistField.Path;
ltPageData.Text =
refDroptreeField.TargetItem.Fields["Category Name"].Value;
}
Note: Droplist data
type only stores the string value of
the item that was chosen by the content editor, not the GUID that would allow
us to get back to the item and gets its other fields. So aside from doing
string matching on the name of the item, there’s no way to get back to the
actual item that was chosen.
Working with Multi
list item
Sitecore.Data.Fields.MultilistField
refMultilistField = current.Fields["Multi List Field"];
if (refMultilistField != null)
{
Item[] items =
refMultilistField.GetItems();
List<Item> check =
items.Where(x => x.Fields["Category Name"].Value ==
"Liquor").ToList();
}
Treelist / TreelistEx:
The value of Treelist/ TreelistEx fields are very similar to
the value of the Checklist and Multilist field in that it is a pipe-separated
list of IDs of the selected items.
For performance, you should use the TreelistEx field type in
your data templates instead of the Treelist field type. With a Treelist, the
client renders the selection tree and the list of selected items whenever the
user selects an item that contains the field. With a TreelistEx, the client
renders only the list of selected items, and does not render the selection tree
until the user clicks the Edit command above the field.
Source Parameters
DataSource: The
root item the field points to. Must be a path.
Datasource=/sitecore/common/categories
ExcludeTemplatesForSelection:
This is a comma separated list of template names that should NOT be allowed
for selection. These items may need to appear in the treelist to show
sub-items, but these cannot actually be selected. For example folders.
DataSource=/sitecore/common/categories&ExcludeTemplatesForSelection=Folder
IncludeTemplatesForSelection:
This is a comma separated list of template names that should be allowed for
selection. If this is defined, only items of templates defined in this list can
be selected.
DataSource=/sitecore/common/categories&IncludeTemplatesForSelection=Category
ExcludeTemplatesForDisplay:
This is a comma separated list of templates that should not be displayed in
the treelist. Any sub-items of these templates will also not display because
they are hidden.
DataSource=/sitecore/common/categories&ExcludeTemplatesForDisplay=Categoty
IncludeTemplatesForDisplay:
This is a coma separated list of template names that should be displayed in
the treelist. If this is defined, only items of templates defined in this list
can be displayed. An important thing to note here is that for any templates in
this list, the parent items must at least be displayed in the treelist in order
for these to show up.
DataSource=/sitecore/common/categories&IncludeTemplatesForDisplay=Categoty
IncludeItemsForDisplay:
This is a comma separated list of GUIDs
that should be displayed.
DataSource=/sitecore/common/categories&IncludeItemsForDisplay= {93FBD42C-458A-4C9C-A999-1EE2B651C6E1}, {3ABCX2C-458A-4C9C-A999-1EE2B651C6E1}
ExcludeItemsForDisplay:
This is a comma separated list of GUIDs
that should NOT be displayed.
DataSource=/sitecore/common/categories&ExcludeItemsForDisplay= {93FBD42C-458A-4C9C-A999-1EE2B651C6E1}, {3ABCX2C-458A-4C9C-A999-1EE2B651C6E1}
AllowMultipleSelection:
This defines whether or not an editor can select the same item more than
once. It takes a word yes.
DataSource=/sitecore/common/categories&AllowMultipleSelection=yes
DatabaseName: Changes
the database name being referenced. Useful if using an external data provider.
Working with Name
Value List Field:
The Name Value List field type allows the user to enter
values for zero or more arbitrary keys. Sitecore stores the values entered as a
list of key=value pairs separated by ampersands “&”.
Option 1:
Sitecore.Data.Fields.NameValueListField refNameValuelistField =
current.Fields["Name Value List Field"];
if (refNameValuelistField != null )
{
NameValueCollection
nameValueCollection = refNameValuelistField.NameValues;
foreach (var nv in
nameValueCollection)
{
ltPageData.Text +=
nameValueCollection[nv.ToString()] + "<br/>";
}
}
Option 2:
Sitecore.Data.Fields.MultilistField
refMultilistField = current.Fields ["Name Value List Field"];
if (refMultilistField != null
&& refMultilistField.List != null)
{
string _urlParamsToParse = refMultilistField.List.ToString ();
NameValueCollection
nameValueCollection = Sitecore.Web.WebUtil.ParseUrlParameters(_urlParamsToParse);
foreach (var nv in
nameValueCollection)
{
ltPageData.Text +=
nameValueCollection[nv.ToString()] + "<br/>";
}
}
Working with Name
Lookup Value List Field:
Name Lookup Value field takes a data source parameter which
is used to pick values for entered keys.
Sitecore.Data.Fields.MultilistField
refMultilistField = current.Fields["Name Lookup Value List Field"];
if (refMultilistField != null
&& refMultilistField.List != null)
{
string _urlParamsToParse =
refMultilistField.List.ToString();
NameValueCollection
nameValueCollection =
Sitecore.Web.WebUtil.ParseUrlParameters(_urlParamsToParse);
foreach(var nv in
nameValueCollection)
{
Item i = master.GetItem(nameValueCollection[nv.ToString()]);
ltPageData.Text += i.Fields["Category
Name"] + "<br/>";
}
}
Note: Name Lookup
Value List field stores Item Id for each key
