get text between two words in a string

darma teja

i have string like this:

string myOrder= " \"orderID\":\"123456\",\"orderName\":\"ABC\",\"orderDate\":\"20170120\""

I am trying to get values of orderID, orderName, orderDate by the following method:

List orderName= ExtractFromString(myOrder, "\"orderName\":\"", "\",");

private static List ExtractFromString(string text, string startString, string endString)

{

List matched = new List();

int indexStart = 0, indexEnd = 0;

bool exit = false;

while (!exit)

{

indexStart = text.IndexOf(startString);

indexEnd = text.IndexOf(endString);

if (indexStart != -1 && indexEnd != -1)

{

matched.Add(text.Substring(indexStart + startString.Length,

indexEnd - indexStart - startString.Length));

text = text.Substring(indexEnd + endString.Length);

}

else

exit = true;

}

return matched;

}

I am getting null exception at matched.add(...

Advance thanks,

Darma

3 Replies

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Nitin Sontakke9y ago
Accepted answer
Looks more like a JSON to me. Have you tried encapsulating the whole string between curly braces and deserializing it? I suggest you try that. Neat and clean.

String myOrder = " \"orderID\":\"123456\",\"orderName\":\"ABC\",\"orderDate\":\"20170120\"";
String jsonOrder = "{" + myOrder + "}";
Order order = JsonConvert.DeserializeObject(jsonOrder);

Include reference to Newtonsoft.json and add using Newtonsoft.Json;

Will also need a class as follows:

public class Order
{
public Int32 orderId { get; set; }
public String orderName { get; set; }
public String orderDate { get; set; }
public override string ToString()
{
return "Order Id: " + orderId.ToString();
}
}
darma teja9y ago
@Dinesh: It is a string
Dinesh Santhalingam9y ago
string myOrder= " \"orderID\":\"123456\",\"orderName\":\"ABC\",\"orderDate\":\"20170120\""

Whether it is a String [] Array or String.@ darma teja