C# code to create Site Column, Content Type, and add fields to Content Type

You can use below code to create following:-
1. Site Columns
2. Content Types
3. Add Fields to Content Type

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Microsoft.SharePoint; namespace LAB {     public static class SPDevUtility     {         public static SPContentType CreateSiteContentType(SPWeb web, string contentTypeName,         SPContentTypeId parentItemCTypeId, string group)         {             if (web.AvailableContentTypes[contentTypeName] == null)             {                 SPContentType itemCType = web.AvailableContentTypes[parentItemCTypeId];                 SPContentType contentType =                     new SPContentType(itemCType, web.ContentTypes, contentTypeName) { Group = @group };                 web.ContentTypes.Add(contentType);                 contentType.Update();                 return contentType;             }             return web.ContentTypes[contentTypeName];         }         public static SPField CreateSiteColumn(SPWeb web, string displayName,             SPFieldType fieldType, string groupDescriptor)         {             if (!web.Fields.ContainsField(displayName))             {                 string fieldName = web.Fields.Add(displayName, fieldType, false);                                 SPField field = web.Fields.GetFieldByInternalName(fieldName);                                 field.Group = groupDescriptor;                                 field.Update();                 return field;             }             return web.Fields[displayName];         }         public static void AddFieldToContentType(SPWeb web, SPContentTypeId contentTypeId, SPField field)         {             SPContentType contentType = web.ContentTypes[contentTypeId];             if (contentType == null) return;             if (contentType.Fields.ContainsField(field.Title)) return;             SPFieldLink fieldLink = new SPFieldLink(field);             contentType.FieldLinks.Add(fieldLink);             contentType.Update();         }     } }

SharePoint Custom Accordion Menu Sample Code HTML and CSS

You can download the source code for accordion menu from below link

SharePoint Custom Accordion Menu Sample Code HTML and CSS

The attached sample code contains custom menu which can be used in SharePoint as a vertical menu or in any other asp.net web application.

The code sample contains:-

·         HTML code for the vertical menu

·         CSS for styling on the menu

·         JQuery script to provide accordion behavior

·         Icons which are rendered as CSS without using any image 

For building vertical menu in SharePoint, the attached code can be used in a user control. The attached code renders the menu in aspx page.