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Google Search In ASP NET

<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server" Width="300px"></asp:TextBox>
        <asp:Button ID="btnSearch" runat="server" Text="Google Search" OnClick="Button1_Click" /><br />
        <asp:DataList ID="dlSearch" runat="server" Width="600px">
            <ItemTemplate>
                <asp:LinkButton ID="LinkButton1" runat="server" Text='<%#Eval("Title") %>'PostBackUrl='<%#Eval("Url") %>'></asp:LinkButton><br />
                <asp:Label ID="Label1" runat="server" Text='<%#Eval("Content") %>'></asp:Label><br />
                <br />
            </ItemTemplate>
            <FooterTemplate>
                <asp:Label Visible='<%#bool.Parse((dlSearch.Items.Count==0).ToString())%>' runat="server"
                  ID="lblNoRecord" Text="No Record Found!"></asp:Label>
           </FooterTemplate>
        </asp:DataList>
    </div>
    </form>
</body> 

Now go to the code view.
Next add a reference of the following Google Search API DLL to your website:
  1. GoogleSearchAPI.dll
And write the following code in .cs file: using System;
using System.Collections.Generic;
using Google.API.Search;
using System.Data;
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            dlSearch.DataSource = null;
            dlSearch.DataBind();
            TextBox1.Text = "";
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        DataSet ds = new DataSet();
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("Title", typeof(string)));
        dt.Columns.Add(new DataColumn("Content", typeof(string)));
        dt.Columns.Add(new DataColumn("Url", typeof(string)));
        GwebSearchClient client = new GwebSearchClient("www.c-sharpcorner.com");
        IList<IWebResult> results = client.Search(TextBox1.Text, 32);
        foreach (IWebResult result in results)
        {
            DataRow dr = dt.NewRow();
            dr["Title"] = result.Title.ToString();
            dr["Content"] = result.Content.ToString();
            dr["Url"] = result.Url;
            dt.Rows.Add(dr);
        }
        dlSearch.DataSource = dt;
        dlSearch.DataBind();
    }
}
In the code above i passed the textbox value in button click to google server.
After getting the result i binded it to datatable then to datalist control.

just check these two lines:

GwebSearchClient client = new GwebSearchClient("www.asp.net");
IList<IWebResult> results = client.Search(TextBox1.Text, 30);
In the 1st line i am passing "www.asp.net" as Client because it required a hosted site for Security purposed.
If you didn't pass then it will show exception.
In the 2nd line i am passing 30 and textbox value. Here 30 means i am getting 30 search results.
So You Can increase or decrease this value according to your requirement.
Now build your application. Enter Search query press the button.
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