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Consider using SPContentTypeCollection.BestMatch(SPContentTypeId) to retrieve a Content Type

Use SPContentTypeCollection.BestMatch(string) to retrieve a Content Type from a SPContentTypeCollection.

CheckId SPC055201
TypeName ConsiderBestMatchForContentTypesRetrieval
Severity CriticalWarning
Type Assembly

Consider using SPContentTypeCollection.BestMatch() instead of using the indexer. See sample below:
Bad Practice

// get the ContentType via index which failes if the exact ContentType is not there
SPContentTypeId ctypeId = new SPContentTypeId("0x010008F15D6B2D0A466BA95AA5D91E21416E");
SPContentType cType = web.ContentTypes[ctypeId];

Good Practice
// get the nearest match to the specified ContentType ID
SPContentTypeId ctypeId = new SPContentTypeId("0x010008F15D6B2D0A466BA95AA5D91E21416E");
SPContentTypeId matchId = web.ContentTypes.BestMatch(id);
SPContentType cType = web.ContentTypes[matchId];

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("SPCAF.Rules.BestPracticesGroup", "SPC055201:ConsiderBestMatchForContentTypesRetrieval", Justification = "Provide reason for suppression here")]
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