Create, Update, Delete a SharePoint List and add a new Field using Client Object Model

Create and update a SharePoint list

// Starting with ClientContext, the constructor requires a URL to the 
// server running SharePoint. 
ClientContext context = new ClientContext("http://SiteUrl"); 

// The SharePoint web at the URL.
Web web = context.Web; 

ListCreationInformation creationInfo = new ListCreationInformation(); 
creationInfo.Title = "My List"; 
creationInfo.TemplateType = (int)ListTemplateType.Announcements; 
List list = web.Lists.Add(creationInfo); 
list.Description = "New Description"; 

list.Update(); 
context.ExecuteQuery(); 

Delete a SharePoint list

// Starting with ClientContext, the constructor requires a URL to the 
// server running SharePoint. 
ClientContext context = new ClientContext("http://SiteUrl"); 

// The SharePoint web at the URL.
Web web = context.Web; 

List list = web.Lists.GetByTitle("My List"); 
list.DeleteObject(); 

context.ExecuteQuery();  

Add a field to a SharePoint list

This example adds a field to a SharePoint list. add an alias to the using statement for Microsoft.SharePoint.Client namespace so you can refer to its classes unambiguously. For example,

using SP = Microsoft.SharePoint.Client;
// Starting with ClientContext, the constructor requires a URL to the 
// server running SharePoint. 
ClientContext context = new ClientContext("http://SiteUrl"); 

SP.List list = context.Web.Lists.GetByTitle("Announcements"); 

SP.Field field = list.Fields.AddFieldAsXml("", 
 true, 
 AddFieldOptions.DefaultValue); 

SP.FieldNumber fldNumber = context.CastTo<FieldNumber>(field); 
fldNumber.MaximumValue = 100; 
fldNumber.MinimumValue = 35; 
fldNumber.Update(); 

context.ExecuteQuery(); 

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