如何从WP7中有大量记录的Txt文件中搜索记录？

Question

I had 10000+ unicode record in my txt file, i using this function for search record from the Txt File:

 Dictionary<string, string> myLookupTable = new Dictionary<string, string>();

     private void LoadFile(){

    var resource = Application.GetResourceStream(new Uri("datatxt.txt", UriKind.Relative));

    StreamReader streamReader = new StreamReader(resource.Stream,System.Text.Encoding.Unicode);

                string line;
                char[] spaceSeparator = new char[] { ',' 
                string[] result;

                while (!streamReader.EndOfStream)
                {
                    line = streamReader.ReadLine();
                    result = line.Split(spaceSeparator, StringSplitOptions.None);
                    myLookupTable.Add(result[0],result[1]);
                }
    }

It said "Value does not fall within the expected range." from "myLookupTable.Add(result[0],result[1]);"

Anyone know what is the reason of this error and how can i solve it?

Thanks a lot!!

Answer 1

Instead of using

myLookupTable.Add(result[0],result[1]);

you may use

if(!myLookupTable.ContainsKey(result[0]))
{
    myLookupTable.Add(result[0],result[1]);
}
else
{
   //You have to implement this based on your application business rules
}