Custom Converter Example

If you like to parse a file with a field that has different parsing rules you can define a CustomConverter, for example if you have this source file:

Argentina|Meli, Marcos|25 Argentina|Meli, Luciano|25 Argentina|Perez, Juan|25 Chile|Salas, Marcelo|25

The solution is to define a class for the Name part:

public class NameField { public string FirstName; public string LastName; public override string ToString() { return LastName + ", " + FirstName; } }

Later define your record class:

[DelimitedRecord("|")] public class CustomConvClass { public string Country; [FieldConverter(typeof(NameConverter))] public NameField Names; public int Age; }</pre>

The big step is to define the converter you must inherit from the ConverterBase

public class NameConverter: ConverterBase { public override object StringToField(string from) { string[] splited = from.Split(','); NameField res = new NameField(); res.LastName = splited[0].Trim(); res.FirstName = splited[1].Trim(); return res; } }

Done !! you can actually parse the file with.

FileHelperEngine engine = new FileHelperEngine(typeof(CustomConvClass)); CustomConvClass[] res = (CustomConvClass[]) engine.ReadFile("NameTest.txt"); // You can access your custom field like this res[0].Country res[0].Names.LastName res[i].Names.FirstName res[i].Age

See also

Must Read - Quick Start Guide - Attributes List - F.A.Q. - Examples of Use - Contacts & Credits - Donations

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