FileHelperAsyncEngine Class

One of the main classes of the library.

This engine is responsable to Read/Write the records One by One from/to files or streams.

For a list of all members of this type, see FileHelperAsyncEngine Members.

System.Object
   FileHelpers.EngineBase
      FileHelpers.FileHelperAsyncEngine

Remarks

You can set the ErrorMode of this class when found an error, and can retrive them with the Errors property.

See in the Class Diagram and in the Quick Start Guide for more Info.

Or you can browse the Examples Seccion for more code.

Example

This example show the basic use of the async methods in the FileHelperAsymcEngine:

    using FileHelpers;
    
    // First declare the record class
        
    [Delimitedrecord("|")]
    public class SampleType
    {
        public string Field1;
        public int    Field2;
    }


    public void ReadExample()
    {
        SampleType record;    

        FileHelperAsyncEngine engine = new FileHelperAsyncEngine(typeof(SampleType));

        engine.BeginReadFile("source.txt");
        
        while( engine.ReadNext() != null )
        {
           record = (SampleType) engine.LastRecord;
           
           // put your code here !!!!
           Console.WriteLine("Data " + record.Field1 + " , " + record.Field2.ToString());
        
        }
        
        engine.Close();
    }

    
    public void WriteExample()
    {
        SampleType record;    

        FileHelperAsyncEngine engine = new FileHelperAsyncEngine(typeof(SampleType));

        engine.BeginWriteFile("source.txt");
        
        record.Field1 = "Primer Registro";
        record.Field2 = 1;
        engine.WriteNext(record);
        
        record.Field1 = "Segundo Registro";
        record.Field2 = 2;
        engine.WriteNext(record);

        engine.Close();
    }


        

Requirements

Namespace: FileHelpers

Assembly: FileHelpers (in FileHelpers.dll)

See Also

FileHelperAsyncEngine Members | FileHelpers Namespace | Quick Start Guide | Class Diagram | Examples of Use | Attributes List

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