# Migrating from version 24 to 25 ## Delegates All delegate args had their non-parameterless constructor removed in favor of using `init`. **BadDataFoundArgs** ```cs // v25 var args = new BadDataRoundArgs(field, rawRecord, context); // v26 var args = new BadDataFoundArgs { Field = field, RawRecord = rawRecord, Context = context, }; ``` **ConvertFromStringArgs** ```cs // v25 var args = new ConvertFromStringArgs(row); // v26 var args = new ConvertFromStringArgs { Row = row, }; ``` **ConvertToStringArgs** ```cs // v25 var args = new ConvertToStringArgs(value); // v26 var args = new ConvertToStringArgs { Value = value, }; ``` **GetConstructorArgs** ```cs // v25 var args = new GetConstructorArgs(type); // v26 var args = new GetConstructorArgs { ClassType = type, }; ``` **GetDynamicPropertyNameArgs** ```cs // v25 var args = new GetDynamicPropertyNameArgs(index, context); // v26 var args = new GetDynamicPropertyNameArgs { FieldIndex = index, Context = context, }; ``` **HeaderValidatedArgs** ```cs // v25 var args = new HeaderValidatedArgs(headers, context); // v26 var args = new HeaderValidatedArgs { InvalidHeaders = headers, Context = context, }; ``` **MissingFieldFoundArgs** ```cs // v25 var args = new MissingFieldFoundArgs(headerNames, index, context); // v26 var args = new MissingFieldFoundArgs { HeaderNames = headerNames, Index = index, Context = context, }; ``` **PrepareHeaderForMatchArgs** ```cs // v25 var args = new PrepareHeaderForMatchArgs(header, fieldIndex); // v26 var args = new PrepareHeaderForMatchArgs { Header = header, FieldIndex = fieldIndex, }; ``` **ReadingExceptionOccurredArgs** ```cs // v25 var args = new ReadingExceptionOccurredArgs(exception); // v26 var args = new ReadingExceptionOccurredArgs { Exception = exception, }; ``` **ReferenceHeaderPrefixArgs** ```cs // v25 var args = new ReferenceHeaderPrefixArgs(memberType, memberName); // v26 var args = new ReferenceHeaderPrefixArgs { MemberType = memberType, MemberName = memberName, }; ``` **ShouldQuoteArgs** ```cs // v25 var args = new ShouldQuoteArgs(field, fieldType, row); // v26 var args = new ShouldQuoteArgs { Field = field, FieldType = fieldType, Row = row, }; ``` **ShouldSkipRecordArgs** ```cs // v25 var args = new ShouldSkipRecordArgs(record); // v26 var args = new ShouldSkipRecordArgs { Record = record, }; ``` **ShouldUseConstructorParametersArgs** ```cs // v25 var args = new ShouldUseConstructorParametersArgs(parameterType); // v26 var args = new ShouldUseConstructorParametersArgs { ParameterType = parameterType, }; ``` **ValidateArgs** ```cs // v25 var args = new ValidateArgs(field); // v26 var args = new ValidateArgs { Field = field, }; ```