SystemInfoEqualsIgnoringCase Method Apache log4net™ SDK Documentation
Tests two strings for equality, the ignoring case.

Namespace: log4net.Util
Assembly: log4net (in log4net.dll) Version: 2.0.6.0-.NET 4.0
Syntax

public static bool EqualsIgnoringCase(
	string a,
	string b
)

Parameters

a
Type: SystemString
The one string.
b
Type: SystemString
The other string.

Return Value

Type: Boolean
true if the strings are equal, false otherwise.
Remarks

If the platform permits, culture information is ignored completely (ordinal comparison). The aim of this method is to provide a fast comparison that deals with null and ignores different casing. It is not supposed to deal with various, culture-specific habits. Use it to compare against pure ASCII constants, like keywords etc.
See Also

Reference