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SPSite.OpenWeb Method (String)

Windows SharePoint Services 3

Other Versions

SharePoint 2010

Returns the site that is located at the specified server-relative or site-relative URL.

Namespace: Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in microsoft.sharepoint.dll)

Syntax

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public SPWeb OpenWeb (
	string strUrl
)

Parameters

strUrl: A string that contains either the server-relative or site-relative URL of the site. A server-relative URL begins with a forward slash ("/"), while a site-relative URL does not begin with a forward slash.

Return Value

An SPWeb object that represents the site.

Remarks

If a site-relative URL is passed to the OpenWeb method, the URL is relative to the highest-level site that is represented in the URL that is passed to an SPSite constructor. For example, assume that the following sites exist in the Windows SharePoint Services deployment:

http://Server/Subsite1/Subsite2
http://Server/sites/SiteCollection/Subsite3

The following table shows the results of passing various URLs to an SPSite constructor and the OpenWeb method.

SPSite Constructor	OpenWeb Method	Site Returned
http://Server/Folder/File	There is no parameter (OpenWeb method overload)	http://Server
http://Server/Subsite1/Subsite2/Folder/File	There is no parameter (OpenWeb method overload)	http://Server/Subsite1/Subsite2
http://Server/Subsite1/Subsite2/Folder/File	/	http://Server
http://Server/Subsite1/Subsite2/Folder/File	/Subsite1	http://Server/Subsite1
http://Server/Folder/File	Subsite1/Subsite2	http://Server/Subsite1/Subsite2
http://Server/Folder/File	/SiteCollection/Subsite3	Error: There is no site named /SiteCollection/Subsite3
http://Server/Folder/File	/Subsite4	Error: There is no site named /Subsite4
http://Server/sites/SiteCollection/Subsite3/Folder/File	No parameter (OpenWeb method overload)	http://Server/sites/SiteCollection/Subsite3
http://Server/sites/SiteCollection/Folder/File	/sites/SiteCollection/Subsite3	http://Server/sites/SiteCollection/Subsite3
http://Server/sites/SiteCollection/Folder/File	Subsite3	http://Server/sites/SiteCollection/Subsite3
http://Server/sites/SiteCollection/Folder/File	/	Error: Invalid URL
http://Server/sites/SiteCollection/Subsite3/Folder/File	/sites/SiteCollection	http://Server/sites/SiteCollection

For information about the forms of URLs that are used in Windows SharePoint Services, see Forms of URL Strings.

Example

The following code example displays the URL for a specified Web site in a console application using a site-relative URL for the OpenWeb method. The example assumes the existence of a Web site located at http://MyServer/MyWebSite/MySubSite.

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string strUrl = "http://MyServer/MyWebSite/Lists/Announcements/AllItems.aspx";

using (SPSite oSiteCollection = new SPSite(strUrl))
{
    using(SPWeb oWebsite = oSiteCollection.OpenWeb("MyWebSite/MySubSite"))
    {
        Console.WriteLine("Website: " + oWebsite.Url);
    }
}

Note:
Certain objects implement the IDisposable interface, and you must avoid retaining these objects in memory after they are no longer needed. For information about good coding practices, see Best Practices: Using Disposable Windows SharePoint Services Objects.

Reference

SPSite Class
SPSite Members
Microsoft.SharePoint Namespace

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