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This documentation is part of the BETA release and subject to change.

Use GetListByUrl to get lists by URL.

PnP has an implementation to get lists by URL.

CheckId SPC029008
TypeName UseGetListByUrl
Severity Warning
Type Assembly

Standard SharePoint CSOM

var webRelativeUrl = "SiteAssets";
var baseExpressions = new List<Expression<Func<List, object>>> { l => l.DefaultViewUrl, l => l.Id, l => l.BaseTemplate, l => l.OnQuickLaunch, l => l.DefaultViewUrl, l => l.Title, l => l.Hidden, l => l.RootFolder };

if (expressions != null && expressions.Any())
{
    baseExpressions.AddRange(expressions);
}
if (string.IsNullOrEmpty(webRelativeUrl)) throw new ArgumentNullException(nameof(webRelativeUrl));

if (!web.IsObjectPropertyInstantiated("ServerRelativeUrl"))
{
    web.Context.Load(web, w => w.ServerRelativeUrl);
    web.Context.ExecuteQueryRetry();
}
var listServerRelativeUrl = UrlUtility.Combine(web.ServerRelativeUrl, webRelativeUrl);

var foundList = web.GetList(listServerRelativeUrl);
web.Context.Load(foundList, baseExpressions.ToArray());
try
{
web.Context.ExecuteQueryRetry();
}
catch (ServerException se)
{
    if (se.ServerErrorTypeName == "System.IO.FileNotFoundException")
    {
    foundList = null;
    }
    else
    {
        throw;
    }
}
var list = foundList;

Using PnP
var list = web.GetListByUrl("SiteAssets");

To suppress this violation in managed code add the following attribute to the method which contains the instruction (available since SPCAF version v5.2). Learn more about SuppressMessage here.

// Important: Ensure to have #define CODE_ANALYSIS at the beginning of your .cs file
[SuppressMessage("Rencore.Analyzers.Assemblies.Rules.PnP.PnPBestPracticesGroup", "SPC029008:UseGetListByUrl", Justification = "Provide reason for suppression here")]
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