(.NET Core C#) Retrieve a Particular SharePoint List as XML

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Downloads a particular SharePoint list and parses the XML.

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

// -------------------------------------------------------------------------
// The following comments apply to SharePoint Windows classic authentication.
// -------------------------------------------------------------------------
// For example, imagine our SharePoint endpoint is https://xyzoffice.mycompany.com/
// The SHAREPOINT_NTLM_DOMAIN would be "mycompany.com"
// The SHAREPOINT_HTTPS_DOMAIN would be "xyzoffice.mycompany.com"
// Also, the SHAREPOINT_USERNAME would be just the name, not a full email address.
// for example, "chilkat" instead of "chilkat@mycompany.com"

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
// -------------------------------------------------------------------------

// Indicate that we want an XML reply
http.Accept = "application/atom+xml";
http.AcceptCharset = "utf-8";

// The contents of a SharePoint list can be downloaded by it's URI,
// which has the following URL format:
// https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/items
// 
// To get the URI's for all SharePoint lists, 
// See Get SharePoint Lists.

// Download the list like this (where the SHAREPOINT_DOCUMENTS_GUID is replaced with the actual GUID)
Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder();
bool success = http.QuickGetSb("https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/Lists(guid'SHAREPOINT_DOCUMENTS_GUID')/items",sbXml);
if (success != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.Xml xml = new Chilkat.Xml();
xml.LoadSb(sbXml,true);

Chilkat.StringBuilder sbBase = new Chilkat.StringBuilder();
sbBase.Append(xml.GetAttrValue("xml:base"));
Debug.WriteLine("Base URL = " + sbBase.GetAsString());

// Find the number of entries in this list.
int numEntries = xml.NumChildrenHavingTag("entry");
Debug.WriteLine("Number of Entries in this SharePoint List = " + Convert.ToString(numEntries));

Chilkat.StringBuilder sbUri = new Chilkat.StringBuilder();

int i = 0;
while (i < numEntries) {
    xml.I = i;

    string title = xml.GetChildContent("entry[i]|content|m:properties|d:Title");

    sbUri.SetString(sbBase.GetAsString());
    sbUri.Append(xml.GetChildContent("entry[i]|id"));

    Debug.WriteLine(Convert.ToString(i + 1) + ": " + title);
    Debug.WriteLine("URI: " + sbUri.GetAsString());

    i = i + 1;
}

// The output of this program (when I ran w/ my test SharePoint data) looks something like this:

// I found that not every item has a Title,  but as viewed in a browser, I can see each of the item's name.
// (The number of items agrees with what I can interactively see in a browser.) The mystery of what
// is being shown for the name (or title) in the browser will be investigated further as Chilkat
// continues to explore the SharePoint API...

// 	Base URL = https://xyzoffice.mycompany.com/_api/
// 	Number of Entries in this SharePoint List = 13
// 	1: Domain Name created for Exchange Docx
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(3)
// 	2: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(4)
// 	3: VCAC_RA_Design.docx
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(5)
// 	4: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(9)
// 	5: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(10)
// 	6: Architecture Briefv1
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(16)
// 	7: PowerPoint Presentation
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(17)
// 	8: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(18)
// 	9: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(19)
// 	10: 
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(20)
// 	11: FRC Summit Brief
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(21)
// 	12: VCAC DISA Brief 8-13-16
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(22)
// 	13: TEST PROCEDURE
// 	URI: https://xyzoffice.mycompany.com/_api/Web/Lists(guid'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')/Items(23)
// 
//