INameCreationService Antarmuka
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Menyediakan layanan yang dapat menghasilkan nama unik untuk objek.
public interface class INameCreationService
public interface INameCreationService
type INameCreationService = interface
Public Interface INameCreationService
- Turunan
Contoh
Contoh kode berikut menyediakan contoh INameCreationService implementasi. Layanan dapat membuat nama unik berdasarkan jenis yang tidak cocok dengan nama apa pun dalam kontainer yang ditentukan. Ini juga dapat memvalidasi string nama tertentu.
#using <System.dll>
using namespace System;
using namespace System::ComponentModel::Design;
using namespace System::ComponentModel::Design::Serialization;
using namespace System::Globalization;
namespace NameCreationServiceExample
{
public ref class NameCreationService: public System::ComponentModel::Design::Serialization::INameCreationService
{
public:
NameCreationService(){}
// Creates an identifier for a particular data type that does not conflict
// with the identifiers of any components in the specified collection.
virtual String^ CreateName( System::ComponentModel::IContainer^ container, System::Type^ dataType )
{
// Create a basic type name string.
String^ baseName = dataType->Name;
int uniqueID = 1;
bool unique = false;
// Continue to increment uniqueID numeral until a
// unique ID is located.
while ( !unique )
{
unique = true;
// Check each component in the container for a matching
// base type name and unique ID.
for ( int i = 0; i < container->Components->Count; i++ )
{
// Check component name for match with unique ID string.
if ( container->Components[ i ]->Site->Name->StartsWith( String::Concat( baseName, uniqueID ) ) )
{
// If a match is encountered, set flag to recycle
// collection, increment ID numeral, and restart.
unique = false;
uniqueID++;
break;
}
}
}
return String::Concat( baseName, uniqueID );
}
// Returns whether the specified name contains
// all valid character types.
virtual bool IsValidName( String^ name )
{
for ( int i = 0; i < name->Length; i++ )
{
Char ch = name[ i ];
UnicodeCategory uc = Char::GetUnicodeCategory( ch );
switch ( uc )
{
case UnicodeCategory::UppercaseLetter:
case UnicodeCategory::LowercaseLetter:
case UnicodeCategory::TitlecaseLetter:
case UnicodeCategory::DecimalDigitNumber:
break;
default:
return false;
}
}
return true;
}
// Throws an exception if the specified name does not contain
// all valid character types.
virtual void ValidateName( String^ name )
{
for ( int i = 0; i < name->Length; i++ )
{
Char ch = name[ i ];
UnicodeCategory uc = Char::GetUnicodeCategory( ch );
switch ( uc )
{
case UnicodeCategory::UppercaseLetter:
case UnicodeCategory::LowercaseLetter:
case UnicodeCategory::TitlecaseLetter:
case UnicodeCategory::DecimalDigitNumber:
break;
default:
throw gcnew Exception( String::Format( "The name '{0}' is not a valid identifier.", name ) );
}
}
}
};
}
using System;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
namespace NameCreationServiceExample
{
public class NameCreationService : System.ComponentModel.Design.Serialization.INameCreationService
{
public NameCreationService()
{
}
// Creates an identifier for a particular data type that does not conflict
// with the identifiers of any components in the specified collection.
public string CreateName(System.ComponentModel.IContainer container, System.Type dataType)
{
// Create a basic type name string.
string baseName = dataType.Name;
int uniqueID = 1;
bool unique = false;
// Continue to increment uniqueID numeral until a
// unique ID is located.
while( !unique )
{
unique = true;
// Check each component in the container for a matching
// base type name and unique ID.
for(int i=0; i<container.Components.Count; i++)
{
// Check component name for match with unique ID string.
if( container.Components[i].Site.Name.StartsWith(baseName+uniqueID.ToString()) )
{
// If a match is encountered, set flag to recycle
// collection, increment ID numeral, and restart.
unique = false;
uniqueID++;
break;
}
}
}
return baseName+uniqueID.ToString();
}
// Returns whether the specified name contains
// all valid character types.
public bool IsValidName(string name)
{
for(int i = 0; i < name.Length; i++)
{
char ch = name[i];
UnicodeCategory uc = Char.GetUnicodeCategory(ch);
switch (uc)
{
case UnicodeCategory.UppercaseLetter:
case UnicodeCategory.LowercaseLetter:
case UnicodeCategory.TitlecaseLetter:
case UnicodeCategory.DecimalDigitNumber:
break;
default:
return false;
}
}
return true;
}
// Throws an exception if the specified name does not contain
// all valid character types.
public void ValidateName(string name)
{
for(int i = 0; i < name.Length; i++)
{
char ch = name[i];
UnicodeCategory uc = Char.GetUnicodeCategory(ch);
switch (uc)
{
case UnicodeCategory.UppercaseLetter:
case UnicodeCategory.LowercaseLetter:
case UnicodeCategory.TitlecaseLetter:
case UnicodeCategory.DecimalDigitNumber:
break;
default:
throw new Exception("The name '"+name+"' is not a valid identifier.");
}
}
}
}
}
Imports System.ComponentModel.Design
Imports System.ComponentModel.Design.Serialization
Imports System.Globalization
Public Class NameCreationService
Implements System.ComponentModel.Design.Serialization.INameCreationService
Public Sub New()
End Sub
' Creates an identifier for a particular data type that does not conflict
' with the identifiers of any components in the specified collection
Public Function CreateName(ByVal container As System.ComponentModel.IContainer, ByVal dataType As System.Type) As String Implements INameCreationService.CreateName
' Create a basic type name string
Dim baseName As String = dataType.Name
Dim uniqueID As Integer = 1
Dim unique As Boolean = False
' Continue to increment uniqueID numeral until a unique ID is located.
While Not unique
unique = True
' Check each component in the container for a matching
' base type name and unique ID.
Dim i As Integer
For i = 0 To container.Components.Count - 1
' Check component name for match with unique ID string.
If container.Components(i).Site.Name.StartsWith((baseName + uniqueID.ToString())) Then
' If a match is encountered, set flag to recycle
' collection, increment ID numeral, and restart.
unique = False
uniqueID += 1
Exit For
End If
Next i
End While
Return baseName + uniqueID.ToString()
End Function
' Returns whether the specified name contains
' all valid character types.
Public Function IsValidName(ByVal name As String) As Boolean Implements INameCreationService.IsValidName
Dim i As Integer
For i = 0 To name.Length - 1
Dim ch As Char = name.Chars(i)
Dim uc As UnicodeCategory = [Char].GetUnicodeCategory(ch)
Select Case uc
Case UnicodeCategory.UppercaseLetter, UnicodeCategory.LowercaseLetter, UnicodeCategory.TitlecaseLetter, UnicodeCategory.DecimalDigitNumber
Case Else
Return False
End Select
Next i
Return True
End Function
' Throws an exception if the specified name does not contain
' all valid character types.
Public Sub ValidateName(ByVal name As String) Implements INameCreationService.ValidateName
Dim i As Integer
For i = 0 To name.Length - 1
Dim ch As Char = name.Chars(i)
Dim uc As UnicodeCategory = [Char].GetUnicodeCategory(ch)
Select Case uc
Case UnicodeCategory.UppercaseLetter, UnicodeCategory.LowercaseLetter, UnicodeCategory.TitlecaseLetter, UnicodeCategory.DecimalDigitNumber
Case Else
Throw New Exception("The name '" + name + "' is not a valid identifier.")
End Select
Next i
End Sub
End Class
Keterangan
DesignerLoader dapat mengimplementasikan layanan ini untuk menyediakan cara bagi perancang untuk membuat nama baru yang unik untuk objek. Jika layanan ini tidak tersedia, perancang menggunakan implementasi default.
Metode
CreateName(IContainer, Type) |
Membuat nama baru yang unik untuk semua komponen dalam kontainer yang ditentukan. |
IsValidName(String) |
Mendapatkan nilai yang menunjukkan apakah nama yang ditentukan valid. |
ValidateName(String) |
Mendapatkan nilai yang menunjukkan apakah nama yang ditentukan valid. |