ContactManager.DeleteContact 方法

定義

命名空間:

System.Net.PeerToPeer.Collaboration

組件:

System.Net.dll

從本機對等電腦的 PeerContact 移除 PeerName 或 ContactManager。

多載

DeleteContact(PeerContact)	從本機對等項目的 ContactManager 中移除指定的 PeerContact。
DeleteContact(PeerName)	從本機對等項目的 ContactManager 中移除與指定 PeerName 相關聯的 PeerContact。

DeleteContact(PeerContact)

從本機對等項目的 ContactManager 中移除指定的 PeerContact。

public:
 void DeleteContact(System::Net::PeerToPeer::Collaboration::PeerContact ^ peerContact);

public void DeleteContact (System.Net.PeerToPeer.Collaboration.PeerContact peerContact);

member this.DeleteContact : System.Net.PeerToPeer.Collaboration.PeerContact -> unit

Public Sub DeleteContact (peerContact As PeerContact)

參數

peerContact

PeerContact

要從 PeerContact 移除的 ContactManager。

例外狀況

ArgumentNullException

peerContact 為 null。

範例

下列程式代碼範例說明如何從本機 ContactManager刪除 PeerContact ：

//Enumerating the contacts and letting the user choose which one to delete.
public static void DeleteContact()
{
    PeerContactCollection pcc = null;
    string contactToDelete = "";

    try
    {
        pcc = EnumContacts();
        if (pcc == null ||
            pcc.Count == 0)
        {
            Console.WriteLine("Contact list is empty -- no such contact exists.");
            return;
        }
        Console.Write("Please enter the nickname of the contact you wish to delete: ");
        contactToDelete = Console.ReadLine();

        foreach (PeerContact pc in pcc)
        {
            if (pc.Nickname.Equals(contactToDelete))
            {
                PeerCollaboration.ContactManager.DeleteContact(pc);
                Console.WriteLine("Contact {0} successfully deleted!", contactToDelete);
                return;
            }
        }
        Console.WriteLine("Contact {0} could not be found in the contact collection.", contactToDelete);
    }
    catch (ArgumentNullException argNullEx)
    {
        Console.WriteLine("The supplied contact is null: {0}", argNullEx.Message);
    }
    catch (ArgumentException argEx)
    {
        Console.WriteLine("The supplied contact \"{0}\" could not be found in the Contact Manager: {1}",
            contactToDelete, argEx.Message);
    }
    catch (PeerToPeerException p2pEx)
    {
        Console.WriteLine("The Peer Collaboration Infrastructure could not delete \"{0}\": {1}",
            contactToDelete, p2pEx.Message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Unexpected exception when trying to delete a contact : {0}", ex);
    }
    return;
}

備註

呼叫這個方法需要 PermissionState 的 Unrestricted。

另請參閱

• GetContact(PeerName)

DeleteContact(PeerName)

從本機對等項目的 ContactManager 中移除與指定 PeerName 相關聯的 PeerContact。

public:
 void DeleteContact(System::Net::PeerToPeer::PeerName ^ peerName);

[System.Security.SecurityCritical]
public void DeleteContact (System.Net.PeerToPeer.PeerName peerName);

[<System.Security.SecurityCritical>]
member this.DeleteContact : System.Net.PeerToPeer.PeerName -> unit

Public Sub DeleteContact (peerName As PeerName)

參數

peerName

PeerName

與要從 ContactManager 移除之 PeerContact 相關聯的 PeerName。

屬性

SecurityCriticalAttribute

例外狀況

ArgumentException

在連絡人管理員中找不到與 PeerName 相關聯的 PeerContact。

ArgumentNullException

peerName 為 null。

ObjectDisposedException

此物件先前已在其上呼叫 Dispose()，而且無法用於未來的作業。

PeerToPeerException

無法完成 DeleteContact 作業。

範例

下列程式代碼範例說明如何從本機 ContactManager刪除 PeerContact ：

//Enumerating the contacts and letting the user choose which one to delete.
public static void DeleteContact()
{
    PeerContactCollection pcc = null;
    string contactToDelete = "";

    try
    {
        pcc = EnumContacts();
        if (pcc == null ||
            pcc.Count == 0)
        {
            Console.WriteLine("Contact list is empty -- no such contact exists.");
            return;
        }
        Console.Write("Please enter the nickname of the contact you wish to delete: ");
        contactToDelete = Console.ReadLine();

        foreach (PeerContact pc in pcc)
        {
            if (pc.Nickname.Equals(contactToDelete))
            {
                PeerCollaboration.ContactManager.DeleteContact(pc);
                Console.WriteLine("Contact {0} successfully deleted!", contactToDelete);
                return;
            }
        }
        Console.WriteLine("Contact {0} could not be found in the contact collection.", contactToDelete);
    }
    catch (ArgumentNullException argNullEx)
    {
        Console.WriteLine("The supplied contact is null: {0}", argNullEx.Message);
    }
    catch (ArgumentException argEx)
    {
        Console.WriteLine("The supplied contact \"{0}\" could not be found in the Contact Manager: {1}",
            contactToDelete, argEx.Message);
    }
    catch (PeerToPeerException p2pEx)
    {
        Console.WriteLine("The Peer Collaboration Infrastructure could not delete \"{0}\": {1}",
            contactToDelete, p2pEx.Message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Unexpected exception when trying to delete a contact : {0}", ex);
    }
    return;
}

備註

呼叫這個方法需要 PermissionState 的 Unrestricted。

另請參閱

• PeerNearMe