How to avoid case difference while doing String Comparison ,

Hello Team,

How to avoid case difference while doing String Comparison,

Eg. STR1: Happy
STR2: HAPPY

While comparing these strings ,the result is not zero.
i just need the result as zero.

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@Akhil_Raveendran
Convert both string either upper or lower for comparison
STR1.ToUpper=STR2.ToUpper

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@Akhil_Raveendran

You can try below expression also to compare two strings.

       String.Compare(STR1,STR2,True)

Here, True indicates ignore case.

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@Akhil_Raveendran,

You can compare using Microsoft String Comparison class.

STR1.Equals(STR2, StringComparison.InvariantCultureIgnoreCase)

Refer below table for stringcomparison class arguments:

CurrentCulture 0 Compare strings using culture-sensitive sort rules and the current culture.
CurrentCultureIgnoreCase 1 Compare strings using culture-sensitive sort rules, the current culture, and ignoring the case of the strings being compared.
InvariantCulture 2 Compare strings using culture-sensitive sort rules and the invariant culture.
InvariantCultureIgnoreCase 3 Compare strings using culture-sensitive sort rules, the invariant culture, and ignoring the case of the strings being compared.
Ordinal 4 Compare strings using ordinal (binary) sort rules.
OrdinalIgnoreCase 5 Compare strings using ordinal (binary) sort rules and ignoring the case of the strings being compared.
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