SPRegionalSettings.CollationLCID property

Gets the locale identifier (LCID) for the collation rules that are used on the site.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

public uint CollationLCID { get; }

Property value

Type: System.UInt32
A 32-bit integer that indicates the collation LCID.

A collation specifies the bit patterns that represent each character and the rules by which characters are sorted and compared.