(C# UWP/WinRT) SharePoint -- Update List

See more SharePoint Examples

This example shows how to update a SharePoint (to change the value of a list property, such as Title).

For more information, see https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/working-with-lists-and-list-items-with-rest

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

// If SharePoint Windows classic authentication is used, then set the 
// Login, Password, LoginDomain, and NtlmAuth properties.
http.Login = "SHAREPOINT_USERNAME";
http.Password = "SHAREPOINT_PASSWORD";
http.LoginDomain = "SHAREPOINT_NTLM_DOMAIN";
http.NtlmAuth = true;

// The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
// If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
// establish the cookie as shown at SharePoint Online Authentication

// To create a list, we're going to POST to
// https://SHAREPOINT_HTTPS_DOMAIN/_api/web/lists(guid'{list_guid}')
// with a request body containing the following JSON:
// 
// {
//   "__metadata": {
//     "type": "SP.List"
//   },
//   "Title": "New title"
// }

// In this case, the list_guid is "b0d92cec-4be1-4e52-943d-ebcb432e1c3b"
Chilkat.HttpRequest req = new Chilkat.HttpRequest();
req.HttpVerb = "POST";
req.Path = "/_api/web/lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')";

// We need to add a form digest value in the X-RequestDigest header field.
// See this example for details on
// how to get (and cache) a form digest value
req.AddHeader("X-RequestDigest","SHAREPOINT_FORM_DIGEST");

// Set the Content-Type, and indicate that a JSON response is desired.
req.ContentType = "application/json;odata=verbose";
req.AddHeader("Accept","application/json;odata=verbose");

// Create and add the JSON body.
// Use this online tool to generate code from sample JSON: 
// Generate Code to Create JSON
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("__metadata.type","SP.List");
json.UpdateString("Title","New title");

// Send the POST using HTTPS (TLS). Port 443 is the default port for https.
bool bUseTls = true;
Chilkat.HttpResponse resp = await http.SynchronousRequestAsync("SHAREPOINT_HTTPS_DOMAIN",443,bUseTls,req);
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// The response body contains JSON.
json.Load(resp.BodyStr);
json.EmitCompact = false;

// The expected success response code is 201.
// (Let's also check for 200, just in case things change..)
if ((resp.StatusCode != 200) && (resp.StatusCode != 201)) {
    Debug.WriteLine("Response status code = " + Convert.ToString(resp.StatusCode));
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed");

    return;
}

// Show the successful JSON response.
Debug.WriteLine(json.Emit());
Debug.WriteLine("Success.");

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON