How to search Google and Bing in C#

Hi there, sorry about my english, I'm new developer with c sharp. Im trying to do a search of any text and show the results into a datagrid into my windows app. I understan the code you put in here but i can not make it work cause throw an error. Maybe i don not make it well. Could you please help me with a funtional exmaple?? or any tip?? Thanks in advance.(Visual Studio 2010)

Best regards

Nice little article. took the liberty of doing an alternative version using interfaces etc. hope it gives another viewpoint.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Test.Api;

namespace Test.Api
{
    public struct SearchType
    {
        public string url;
        public string title;
        public string content;
        public FindingEngine engine;
        public enum FindingEngine { Google, Bing, GoogleAndBing };
    }

    public interface ISearchResult
    {
        SearchType.FindingEngine Engine { get; set; }
        string SearchExpression { get; set; }
        List<SearchType> Search();
    }

    public class BingSearch : ISearchResult
    {
        public BingSearch(string searchExpression)
        {
            this.Engine = SearchType.FindingEngine.Bing;
            this.SearchExpression = searchExpression;
        }
        public SearchType.FindingEngine Engine { get; set; }
        public string SearchExpression { get; set; }

        public List<SearchType> Search()
        {
            // our appid from bing - 3F4313687C37F1....23A79E181D0A25
            const string urlTemplate = @"http://api.search.live.net/json.aspx?AppId=3F4313687C37F1...23A79E181D0A25& \
                                            Market=en-US&Sources=Web&Adult=Strict&Query={0}&Web.Count=50";
            const string offsetTemplate = "&Web.Offset={1}";
            var resultsList = new List<SearchType>();
            int[] offsets = { 0, 50, 100, 150 };
            Uri searchUrl;
            foreach (var offset in offsets)
            {
                if (offset == 0)
                    searchUrl = new Uri(string.Format(urlTemplate, SearchExpression));
                else
                    searchUrl = new Uri(string.Format(urlTemplate + offsetTemplate, 
                                        SearchExpression, offset));

                var page = new WebClient().DownloadString(searchUrl);
                var o = (JObject)JsonConvert.DeserializeObject(page);

                var resultsQuery =
                  from result in o["SearchResponse"]["Web"]["Results"].Children()
                  select new SearchType
                  {
                      url = result.Value<string>("Url").ToString(),
                      title = result.Value<string>("Title").ToString(),
                      content = result.Value<string>("Description").ToString(),
                      engine = this.Engine
                  };

                resultsList.AddRange(resultsQuery);
            }
            return resultsList;
        }
    }

    public class GoogleSearch : ISearchResult
    {
        public GoogleSearch(string searchExpression)
        {
            this.Engine = SearchType.FindingEngine.Google;
            this.SearchExpression = searchExpression;
        }
        public SearchType.FindingEngine Engine { get; set; }
        public string SearchExpression { get; set; }

        public List<SearchType> Search()
        {
            const string urlTemplate = @"http://ajax.googleapis.com/ajax/services/search/web?v=1.0& \
                                        rsz=large&safe=active&q={0}&start={1}";
            var resultsList = new List<SearchType>();
            int[] offsets = { 0, 8, 16, 24, 32, 40, 48 };
            foreach (var offset in offsets)
            {
                var searchUrl = new Uri(string.Format(urlTemplate, SearchExpression, offset));
                var page = new WebClient().DownloadString(searchUrl);
                var o = (JObject)JsonConvert.DeserializeObject(page);

                var resultsQuery =
                  from result in o["responseData"]["results"].Children()
                  select new SearchType
                  {
                      url = result.Value<string>("url").ToString(),
                      title = result.Value<string>("title").ToString(),
                      content = result.Value<string>("content").ToString(),
                      engine = this.Engine
                  };

                resultsList.AddRange(resultsQuery);
            }
            return resultsList;
        }
    }
}

class Program
{
    static void Main(string[] args)
    {
        //ISearchResult searchClass = new BingSearch("Asp.net mvc");
        ISearchResult searchClass = new GoogleSearch("Asp.net mvc");
        var list = searchClass.Search();
        foreach (var searchType in list)
        {
            Console.WriteLine(searchType.title);
        }
        Console.Read();
    }
}

Hello,

The JSON deserializer works really fine, and I was able to do searches from google APIs using this examples (.net with C# accessing to http://ajax.googleap...es/search/web).

The problem is, after some searches, google blocks me, and the application starts to fail. The error that prompts is:

"Error 403 'Suspected Terms of Service Abuse. Please see http://code.google.com/apis/errors" .I´ve added a user_ip in my searches, but the error is still there.

I´m wondering if there have been changes on google terms of service that disables this way of accessing to google APIs. Any help will be appreciated.

Best Regards,

Marcela

hi
i want to write a program with c#.net that search my word in search engine like google,bing or aol and find my web site after that brows my web site,
how can i write please help me.

I have use first example and only 56 results in program causes on my query. Why so little list ?

i hav little doubt .. i did following code

private void button1_Click(object sender, EventArgs e)
{
//ISearchResult searchClass = new BingSearch("Asp.net mvc");
ISearchResult searchClass = new GoogleSearch("Asp.net mvc");
var list = searchClass.Search();
foreach (var searchType in list)
{
richTextBox1.AppendText(searchType.title);
}
}
}

public struct SearchType
{
public string url;
public string title;
public string content;
public FindingEngine engine;
public enum FindingEngine { Google, Bing, GoogleAndBing };
}

public interface ISearchResult
{
SearchType.FindingEngine Engine { get; set; }
string SearchExpression { get; set; }
List<SearchType> Search();
}

public class BingSearch : ISearchResult
{
public BingSearch(string searchExpression)
{
this.Engine = SearchType.FindingEngine.Bing;
this.SearchExpression = searchExpression;
}
public SearchType.FindingEngine Engine { get; set; }
public string SearchExpression { get; set; }

public List<SearchType> Search()
{
// our appid from bing - 3F4313687C37F1....23A79E181D0A25
const string urlTemplate = @"http://api.search.live.net/json.aspx?AppId=3F4313687C37F1...23A79E181D0A25& \
Market=en-US&Sources=Web&Adult=Strict&Query={0}&Web.Count=50";
const string offsetTemplate = "&Web.Offset={1}";
var resultsList = new List<SearchType>();
int[] offsets = { 0, 50, 100, 150 };
Uri searchUrl;
foreach (var offset in offsets)
{
if (offset == 0)
searchUrl = new Uri(string.Format(urlTemplate, SearchExpression));
else
searchUrl = new Uri(string.Format(urlTemplate + offsetTemplate,
SearchExpression, offset));

var page = new WebClient().DownloadString(searchUrl);
var o = (JObject)JsonConvert.DeserializeObject(page);

var resultsQuery =
from result in o["SearchResponse"]["Web"]["Results"].Children()
select new SearchType
{
url = result.Value<string>("Url").ToString(),
title = result.Value<string>("Title").ToString(),
content = result.Value<string>("Description").ToString(),
engine = this.Engine
};

resultsList.AddRange(resultsQuery);
}
return resultsList;
}
}

public class GoogleSearch : ISearchResult
{
public GoogleSearch(string searchExpression)
{
this.Engine = SearchType.FindingEngine.Google;
this.SearchExpression = searchExpression;
}
public SearchType.FindingEngine Engine { get; set; }
public string SearchExpression { get; set; }

public List<SearchType> Search()
{
const string urlTemplate = @"http://ajax.googleapis.com/ajax/services/search/web?v=1.0& \
rsz=large&safe=active&q={0}&start={1}";
var resultsList = new List<SearchType>();
int[] offsets = { 0, 8, 16, 24, 32, 40, 48 };
foreach (var offset in offsets)
{
var searchUrl = new Uri(string.Format(urlTemplate, SearchExpression, offset));
var page = new WebClient().DownloadString(searchUrl);
var o = (JObject)JsonConvert.DeserializeObject(page);

var resultsQuery =
from result in o["responseData"]["results"].Children()
select new SearchType
{
url = result.Value<string>("url").ToString(),
engine = this.Engine
};

resultsList.AddRange(resultsQuery);
}
return resultsList;
}
}

but i got a error :

error occur
Cannot access child value on Newtonsoft.Json.Linq.JValue.

plz help!!!!!!