将数据流发送到另一个类

时间:2014-02-18 22:29:58

标签: c# silverlight stream

帮助理解将数据传输到另一个类的本质。 所以,Silverlight应用程序。我有页面Home.xaml(和它的代码隐藏Home.xaml.cs)。有按钮。当我点击按钮时,执行以下代码:

Home.xaml.cs

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
        OpenFileDialog opendialog = new OpenFileDialog();
        opendialog.Multiselect = true;
        bool? dialogResult = opendialog.ShowDialog();
        if (dialogResult.HasValue && dialogResult.Value)
        {

            Stream fileStream = opendialog.File.OpenRead();

            StreamReader reader = new StreamReader(fileStream);
                      ............

这里我需要像 reader 这样的数据,因为我希望这个数据流(阅读器)发送到一些完全另一个类(例如,一个 DataProccess.cs ):

DataProccess.cs

namespace SilverlightApplication1.Models
{
public static class DataProcess
{

    {

    }

}

将使用正则表达式处理数据流( reader 来自Home.xaml.cs),输出数据将放入集合List<>。

如何实现它。我很乐意为您提供几行代码? :)

修改后的代码:

Home.xaml.cs:

private void Button_Click(object sender, EventArgs e)
    {

        OpenFileDialog opendialog = new OpenFileDialog();
        opendialog.Multiselect = true;
        bool? dialogResult = opendialog.ShowDialog();
        if (dialogResult.HasValue && dialogResult.Value)
        {
            Stream fileStream = opendialog.File.OpenRead();
            var processor = new Processor();
            ICollection<object> results = processor.Process(fileStream);
        }
    }

Processor.cs

 public class Processor
{
    public ICollection<object> Process(Stream stream)
    {
        StreamReader reader = new StreamReader(stream);
        string pattern = @"set vrouter ""([\w-]+)""";
        while (!reader.EndOfStream)
        {
            var matches =
                Regex.Matches(reader.ReadToEnd(), pattern)
                    .Cast<Match>().Where(m => m.Success)
                    .Select(m => m.Groups[1].Value)
                    .Distinct();

            foreach (var match in matches)
            {
                var val = match + Environment.NewLine;
                return new Collection<object>().Add(val);;  //here error

            }

        }


        //return new Collection<object>(val);
    }
}

此类错误: Error1 /无法将类型'void'隐式转换为'System.Collections.Generic.ICollection'

1 个答案:

答案 0 :(得分:1)

创建一个将处理结果的新类

public class Processor
{
    public ICollection<object> Process(Stream stream)
    {
        StreamReader reader = new StreamReader(stream);
        // do stuff

        return new Collection<object>();
    }
}

然后创建它的实例并调用Process方法

Stream fileStream = opendialog.File.OpenRead();
var processor = new Processor();
ICollection<object> results = processor.Process(fileStream);