Microsoft Dynamics CRM (Archived)

Check InArgument is Empty for Decimal

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Hi,

how can I check if the value of InArgument<Decimal> in a CodeActivity is empty ?
Thanks.

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Aiden Kaskela 19,696 on at

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Hi Donny,

I don't think there's a way to check if an InArgument is null, especially for primitive types like decimals. The argument will have a value, but if it's not set by the user it would be the default value for the type - 0.0M for decimal.

Hope this helps! I'd appreciate if you'd mark this as a Verified answer.

Thanks,

Aiden

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Royal King 27,686 on at

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Decimal is a value type. It can never be null.

If you need to have a nullable type decimal, you can use decimal? Then you can do myDecimal.HasValue to check whether it has value or not

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Aiden Kaskela 19,696 on at

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Hi Chitra,

I don't think a nullable decimal is allowed as an input attribute, per msdn.microsoft.com/.../gg327984.aspx

Thanks,

Aiden

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Royal King 27,686 on at

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thats Right CRM does not support nullable types in input/output argument. Thanks

for correcting it.

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Nuno 2,005 on at

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Hi Donny,

There is a property 'Expression' for InArgument that can be used to evaluate if the value of an InArgument has been set. This only works for non-nullable datatypes.

https://msdn.microsoft.com/en-us/library/dd485341(v=vs.110).aspx

[Input("Value")] InArgument<Decimal> decimalValue { get; set; } protected override void Execute(CodeActivityContext executionContext) { Decimal value = 0; if (decimalValue.Expression != null) { value = decimalValue.Get<Decimal>(executionContext); } }

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Aiden Kaskela 19,696 on at

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That's awesome Nuno, thanks.

Aiden

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