score:0

   exception : system.argumentexception: a collectiontype is required.
   parameter name: collectiontype

   at system.data.common.commandtrees.expressionbuilder.internal.argumentvalidation.validatenewemptycollection(typeusage collectiontype, dbexpressionlist& validelements)
   at system.data.objects.elinq.expressionconverter.newarrayinittranslator.typedtranslate(expressionconverter parent, newarrayexpression linq)
   at system.data.objects.elinq.expressionconverter.translateexpression(expression linq)
   at system.data.objects.elinq.expressionconverter.constanttranslator.typedtranslate(expressionconverter parent, constantexpression linq)
   at system.data.objects.elinq.expressionconverter.translateexpression(expression linq)
   at system.data.objects.elinq.expressionconverter.methodcalltranslator.unarysequencemethodtranslator.translate(expressionconverter parent, methodcallexpression call) ...

score:1

if (allowrepeatpayments.hasvalue)
{
    data = data.where(p => p.allowrepeatpayments == allowrepeatpayments);
}

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