Permissions.AddPermission Method

[SoapDocumentMethodAttribute("http://schemas.microsoft.com/sharepoint/soap/directory/AddPermission", RequestNamespace="http://schemas.microsoft.com/sharepoint/soap/directory/", ResponseNamespace="http://schemas.microsoft.com/sharepoint/soap/directory/", Use=SoapBindingUse.Literal, ParameterStyle=SoapParameterStyle.Wrapped)] 
public void AddPermission (
	string objectName,
	string objectType,
	string permissionIdentifier,
	string permissionType,
	int permissionMask
)

Parameters

objectName

A string that contains the name of the list or site.

objectType

A string that specifies either List or Web.

permissionIdentifier

A string that contains the name of the site group, the name of the cross-site group, or the user name (DOMAIN\User_Alias) of the user to whom the permission applies.

permissionType

A string that specifies user, group (cross-site group), or role (site group). The user or cross-site group has to be valid, and the site group has to already exist on the site.

permissionMask

A 32-bit integer in 0x00000000 format that represents a Microsoft.SharePoint.SPRights value and defines the permission. Use the pipe symbol ("|") in C# or Or in Microsoft Visual Basic to delimit values when creating a custom permission mask that combines permissions.

To access the Permissions service and its methods, set a Web reference to http://Server_Name/[sites/][Site_Name/]_vti_bin/Permissions.asmx.

The following code example adds or modifies permissions to a list for an existing cross-site group.

Web_Reference_Folder_Name.Permissions permService = new Web_Reference_Folder_Name.Permissions();
permService.Credentials= System.Net.CredentialCache.DefaultCredentials;

permService.AddPermission("List_Name", "List", "Group_Name", "group", 0x00000002 | 0x00000400);