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SPContentTypeId.CompareTo Method

Compares the current content type identifier (ID) with another content type ID.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online

Syntax

'Declaration
Public Function CompareTo ( _
    id As SPContentTypeId _
) As Integer
'Usage
Dim instance As SPContentTypeId
Dim id As SPContentTypeId
Dim returnValue As Integer

returnValue = instance.CompareTo(id)
public int CompareTo(
    SPContentTypeId id
)

Parameters

  • id
    Type: Microsoft.SharePoint.SPContentTypeId

    A content type ID to compare to the current content type ID. The method throws an ArgumentException if the argument is an object of another type.

Return Value

Type: System.Int32
An integer that indicates the relative order of the objects that are being compared. The return value can have one of the following meanings:

Value

Meaning

Less than zero

The current content type ID is less than the ID that was passed as an argument.

Zero

The two content IDs are equal.

Greater than zero

The current content type ID is greater than the ID that was passed as an argument.

Remarks

Use this method to compare two content type IDs. Note that the ID of a base content type has a lesser value than the ID of any content type that is derived from it.

Examples

The following example shows a console application that prints a list of site content types organized in a way that is similar to the list on the Site Content Types Gallery. The output is sorted first by content type group, then by content type ID. In order to accomplish the sort, the example implements the IComparer interface. The implementation first compares the group names of two content types. If the names are the same, it then compares the content type IDs by calling the CompareTo method of the SPContentTypeId class.

using System;
using System.Collections;
using Microsoft.SharePoint;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            using (SPSite site = new SPSite("https://localhost"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    // Create a sortable list of content types excluding hidden types.
                    ArrayList list = new ArrayList();
                    foreach (SPContentType ct in web.AvailableContentTypes)
                    {
                        if (ct.Group != "_Hidden")
                            list.Add(ct);
                    }
                    // Sort the list on group name.
                    list.Sort(new CTComparer());

                    // Print a report.
                    Console.WriteLine("{0,-30} {1,-12} {2}", "Site Content Type", "Parent", "Content Type ID");

                    for (int i = 0; i < list.Count; i++)
                    {
                        SPContentType ct = (SPContentType)list[i];

                        if (i == 0 || ((SPContentType)list[i - 1]).Group != ct.Group)
                        {
                            Console.WriteLine("\n{0}", ct.Group);
                            Console.WriteLine("------------------------");

                        }

                        Console.WriteLine("{0,-30} {1,-12} {2}", ct.Name, ct.Parent.Name, ct.Id);
                    }
                }
            }

            Console.Write("\nPress ENTER to continue...");
            Console.ReadLine();
        }
    }

    // Implements the Compare method from the IComparer interface.
    // Compares two content type objects by group name, then by content type Id.
    class CTComparer : IComparer
    {
        int IComparer.Compare(object x, object y)
        {
            SPContentType ct1 = (SPContentType)x;
            SPContentType ct2 = (SPContentType)y;

            // First compare group names.
            int result = string.Compare(ct1.Group, ct2.Group);
            if (result != 0)
                return result;
            // If the names are the same, compare IDs.
            return ct1.Id.CompareTo(ct2.Id);
        }
    }
}
Imports System
Imports System.Collections
Imports Microsoft.SharePoint

Namespace Test
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            Using site As New SPSite("https://localhost")
                Using web As SPWeb = site.OpenWeb()
                    ' Create a sortable list of content types excluding hidden types.
                    Dim list As New ArrayList()
                    For Each ct As SPContentType In web.AvailableContentTypes
                        If ct.Group <> "_Hidden" Then
                            list.Add(ct)
                        End If
                    Next ct
                    ' Sort the list on group name.
                    list.Sort(New CTComparer())

                    ' Print a report.
                    Console.WriteLine("{0,-30} {1,-12} {2}", "Site Content Type", "Parent", "Content Type ID")

                    For i As Integer = 0 To list.Count - 1
                        Dim ct As SPContentType = CType(list(i), SPContentType)

                        If i = 0 OrElse (CType(list(i - 1), SPContentType)).Group <> ct.Group Then
                            Console.WriteLine(vbLf & "{0}", ct.Group)
                            Console.WriteLine("------------------------")

                        End If

                        Console.WriteLine("{0,-30} {1,-12} {2}", ct.Name, ct.Parent.Name, ct.Id)
                    Next i
                End Using
            End Using

            Console.Write(vbLf & "Press ENTER to continue...")
            Console.ReadLine()
        End Sub
    End Class

    ' Implements the Compare method from the IComparer interface.
    ' Compares two content type objects by group name, then by content type Id.
    Friend Class CTComparer
        Implements IComparer
        Private Function Compare(ByVal x As Object, ByVal y As Object) As Integer Implements IComparer.Compare
            Dim ct1 As SPContentType = CType(x, SPContentType)
            Dim ct2 As SPContentType = CType(y, SPContentType)

            ' First compare group names.
            Dim result As Integer = String.Compare(ct1.Group, ct2.Group)
            If result <> 0 Then
                Return result
            End If
            ' If the names are the same, compare IDs.
            Return ct1.Id.CompareTo(ct2.Id)
        End Function
    End Class
End Namespace

The application prints the following output to the console.

Site Content Type              Parent       Content Type ID

Document Content Types
------------------------
Document                       Item         0x0101
List View Style                Document     0x010100734778F2B7DF462491FC91844AE431CF
Form                           Document     0x010101
Picture                        Document     0x010102
Master Page                    Document     0x010105
Wiki Page                      Document     0x010108
Basic Page                     Document     0x010109
Web Part Page                  Basic Page   0x01010901
Link to a Document             Document     0x01010A
Dublin Core Columns            Document     0x01010B

Folder Content Types
------------------------
Folder                         Item         0x0120
Discussion                     Folder       0x012002
Summary Task                   Folder       0x012004

Group Work Content Types
------------------------
Circulation                    Item         0x01000F389E14C9CE4CE486270B9D4713A5D6
New Word                       Item         0x010018F21907ED4E401CB4F14422ABC65304
Resource                       Item         0x01004C9F4486FBF54864A7B0A33D02AD19B1
Official Notice                Item         0x01007CE30DD1206047728BAFD1C39A850120
Phone Call Memo                Item         0x0100807FBAC5EB8A4653B8D24775195B5463
Holiday                        Item         0x01009BE2AB5291BF4C1A986910BD278E4F18
What's New Notification        Item         0x0100A2CA87FF01B442AD93F37CD7DD0943EB
Timecard                       Item         0x0100C30DDA8EDB2E434EA22D793D9EE42058
Resource Group                 Item         0x0100CA13F2F8D61541B180952DFB25E3E8E4
Users                          Item         0x0100FBEEE6F0C500489B99CDA6BB16C398F7

List Content Types
------------------------
Item                           System       0x01
Event                          Item         0x0102
Reservations                   Event        0x0102004F51EFDEA49C49668EF9C6744C8CF87D
Schedule and Reservations      Event        0x01020072BB2A38F0DB49C3A96CF4FA85529956
Schedule                       Event        0x0102007DBDC1392EAF4EBBBF99E41D8922B264
Issue                          Item         0x0103
Announcement                   Item         0x0104
Link                           Item         0x0105
Contact                        Item         0x0106
Message                        Item         0x0107
Task                           Item         0x0108
Post                           Item         0x0110
Comment                        Item         0x0111
East Asia Contact              Item         0x0116

Special Content Types
------------------------
Unknown Document Type          Document     0x010104

Press ENTER to continue...

See Also

Reference

SPContentTypeId Structure

SPContentTypeId Members

Microsoft.SharePoint Namespace

Other Resources

Content Type IDs

Introduction to Content Types

Site and List Content Types

Base Content Type Hierarchy