CODEWITHSUNDEEP
c#stringvisual-studio-2008enums
Ronald McDonald
Ronald McDonald

Reputation: 2911

replace strings with enums in switch statment

I'm using Visual Studio 2008 and trying to convert this switch statement 

        switch (salesOrderPayment.PaymentCardKey.ToUpper()) {
            case "MC":
                ValidateCreditCard(salesOrderPayment,errorMessages);
                break;
            case "VISA":
                ValidateCreditCard(salesOrderPayment, errorMessages);
                break;
            case "TELECHECK":
                //ValidateTelecheck(salesOrderPayment, errorMessages);
                ValidateAchCheck(salesOrderPayment, errorMessages);
                break;
            case "ACH":
                ValidateAchCheck(salesOrderPayment, errorMessages);
                break;

To use an enum that I have created

    public enum PaymentType {
        MC,
        VISA,
        AMEX,
        TELECHECK,
        CASH,
        ACH }

I've tried this:

switch (Enum.Parse(typeof(PaymentType),salesOrderPayment.PaymentCardKey.ToUpper()))

but get red squiggly lines and when I hover over it says "A value of an integral type expected".

Upvotes: 0

Views: 80

Answers (2)

Sriram Sakthivel
Sriram Sakthivel

Reputation: 73472

Try this:

switch ((PaymentType)Enum.Parse(typeof(PaymentType),salesOrderPayment.PaymentCardKey,true)))

Notice the cast to PaymentType type, also note that your switch cases has to be enum fields rather than strings.

I've used another overload of Enum.Parse which takes bool ignoreCase as parameter, make use of it so that you don't need ToUpper call.

Upvotes: 3

Chris Hinton
Chris Hinton

Reputation: 866

As the Enum.Parse method returns with an Object (see here), you will need to cast the result of Enum.Parse to PaymentType.

Upvotes: 2

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