We have received many requests on how to achieve a partial match functionality using the Sitefinity search. By default Lucene uses exact match and if you search for “choco” you will not get any results for that have “chocolate”.
In order to achieve this functionality, we need to modify the search query to include a wildcard - *. That way Lucene will perform a wildcard search and all words that start with “choco” will be returned as results.
To achieve this, we will need to inherit from the SearchBox and SearchResults widgets and manipulate the query to add the wildcard and pass it to the search. After that, we need to remove the * from the query displayed in the search results, this way the user will be unaware that the wildcard has been added to the search term.First, we need to extend the SearchBox like this:
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Web;
using
Telerik.Sitefinity.Services.Search.Web.UI.Public;
using
Telerik.Sitefinity.Services;
using
Telerik.Sitefinity.Web.UI;
using
System.Collections.Specialized;
namespace
SitefinityWebApp
{
public
class
SearchBoxCustom : SearchBox
{
protected
override
void
InitializeControls(Telerik.Sitefinity.Web.UI.GenericContainer container)
{
base
.InitializeControls(container);
if
(!
this
.IsEmpty)
{
// Set the search text box if searchQuery exists in the QueryString and the IndexCatalogue mathces the current one.
var context = SystemManager.CurrentHttpContext;
if
(context !=
null
)
{
string
searchQuery = context.Request.QueryString[
"searchQuery"
];
if
(!
string
.IsNullOrEmpty(searchQuery))
{
string
indexCatalogue = context.Request.QueryString[
"indexCatalogue"
];
if
(!
string
.IsNullOrEmpty(indexCatalogue))
{
if
(indexCatalogue.Equals(
this
.IndexCatalogue))
{
if
(!searchQuery.EndsWith(
"*"
))
{
String currurl = HttpContext.Current.Request.RawUrl;
NameValueCollection nameValues = HttpUtility.ParseQueryString(currurl);
nameValues.Set(
"searchQuery"
, searchQuery +
"*"
);
string
updatedString = HttpUtility.UrlDecode(nameValues.ToString());
context.Response.Redirect(updatedString);
}
// replace the "*" with " " in the search query
this
.SearchTextBox.Text = searchQuery.Replace(
'*'
,
' '
);
}
}
}
}
}
return
;
}
}
}
In it we do two things - first we get the query and add the * and then continue to redirect to the page holding the SearchResults widget that will do the actual search.
The extension of the SearchResults is very simple and all it does is to remove the * from the search stats term so it will appear as "choco" instead of "choco*"
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Web;
using
System.Web.UI;
using
System.Web.UI.WebControls;
using
Telerik.Sitefinity.Services;
using
Telerik.Sitefinity.Services.Search.Web.UI.Public;
namespace
SitefinityWebApp
{
public
class
CustomSearchResult : SearchResults
{
protected
override
void
InitializeControls(Telerik.Sitefinity.Web.UI.GenericContainer container)
{
base
.InitializeControls(container);
var context = SystemManager.CurrentHttpContext;
if
(context !=
null
)
{
string
searchTitle = context.Request.QueryString[
"searchQuery"
];
if
(!
string
.IsNullOrEmpty(searchTitle))
{
string
indexCatalogue = context.Request.QueryString[
"indexCatalogue"
];
if
(!
string
.IsNullOrEmpty(indexCatalogue))
{
if
(indexCatalogue.Equals(
this
.IndexCatalogue))
{
this
.ResultsStats.Text =
this
.ResultsStats.Text.Replace(searchTitle, searchTitle.TrimEnd(
'*'
));
}
}
}
}
}
}
}
A short video showcasing the functionality: http://screencast.com/t/u87NSnTm
Here is a link to the modified controls, just add them to your project and register them with Thunder and they ready to go: ttps://www.dropbox.com/s/9sq9hh0p7c85w8c/PartialMatch.rar
Atanas Valchev
Atanas Valchev is a Tech Support Engineer at Telerik. He joined the Sitefinity Support team in March 2012.