Split two strings into parent and child ?

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Hi, I am getting the following strings from the database "parent/child", "parent/parent2/parent3/child" , "parent/parent2/parent3/parent4" and so on. The names (parent/child) vary and can be anything.

parent/child
parent/parent2/child
parent/parent2/parent3/child
parent/parent2/parent3/parent4/child

This parent and child are related with a "/". The string comes before "/" is parent and which comes after the "/" is a child. I need to split this string dynamically and enter them into two arrays for parent and child respectively so that I can know who is the father of which child.

So far I have this code, I am stuck with the logic.

C#

foreach(string str in data.strs)
{
if(str.contains("/")
{
string[] names=str.Split('/');
foreach(string name in names)
{
//todo
}
}
}

Posted 25-Feb-15 16:10pm

JBobby

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Comments

nagendrathecoder 25-Feb-15 22:23pm

It is not clear. Can you tell how you like to store strings in array after splitting?

JBobby 25-Feb-15 23:04pm

I wanted to store it like this
parents = all parent entries go here.
childs = all child entries go here.
Which I have bolded in my question. :)
thank you.

Sergey Alexandrovich Kryukov 25-Feb-15 22:40pm

You know System.String.Split. This is all you need. The rest of it is using your brain. Any problems?
—SA

JBobby 25-Feb-15 23:02pm

thanks for your suggestion. :)

BillWoodruff 26-Feb-15 1:49am

I think the solution by Peter Leow may have met your needs, which is great; if you want to know how to parse ALL the lines you show as data, and build a "real" tree structure, please post another question.

JBobby 26-Feb-15 2:36am

Hi Bill, This data is nothing but Gmail nested Labels and I am extracting them from Gmail using its Api. I wanted to split only those data which I have highlighted in my question. "parent/child", parent/"parent2/child", parent/parent2/"parent3/child" , the nested labels can even contains more than ten pairs:
parent/parent2/parent3/parent4/parent5/parent6/parent7/parent8/"parent9/child"
I needed to break only the quoted pairs :)If you still want me to ask a new question, I will do that. please let me know what you think.

BillWoodruff 26-Feb-15 13:32pm

Hi, I think that only you can decide in this case what you want.

If you want to parse the data, as a whole, and fill a data-structure that corresponds to the tree-structure the data suggests, that can be done. If you want to use a TreeView control to display the data in hierarchical form, that can be done.

JBobby 26-Feb-15 22:11pm

Ok Bill. I never worked with Tree Structure in my life. I am going to post a new question related to the topic so that I can learn a new thing.

JBobby 26-Feb-15 22:25pm

@Bill : please see this question :
http://www.codeproject.com/Questions/881002/How-to-build-a-tree-structure-of-the-data-coming-d

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Peter Leow · Accepted Answer · 2015-02-25T16:48:00

You are trying to pair up parent and its child, I think using List to contain pairs of key value[^] would be more suitable to capture this relationship. Check out this example:

C#

using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {
        string str = "parent/parent2/parent3/parent4/child";
        if(str.Contains("/")){
            string[] persons = str.Split('/');

            var kinship = new List<KeyValuePair<string, string>>();

            for(int i=0; i < persons.Length; i++){

                string parent = persons[i];

                string child = i < persons.Length-1? persons[i+1]: "nil";

                kinship.Add(new KeyValuePair<string, string>(parent, child));

                Console.WriteLine("parent: {0}, child: {1}\n", parent, child);
            }
        }
    }
}