Redirect to other page on jQuery AutoComplete suggestion selection using C# and VB.Net in ASP.Net

Hi EddieP,

Refer the below sample that full-fill your requirement.

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.10.0.min.js" type="text/javascript"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.9.2/jquery-ui.min.js" type="text/javascript"></script>
<link rel="Stylesheet" type="text/css" href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.9.2/themes/blitzer/jquery-ui.css" />
<script type="text/javascript">
    $(function () {
        $("[id$=txtSearch]").autocomplete({
            source: function (request, response) {
                $.ajax({
                    url: '<%=ResolveUrl("~/CS.aspx/GetCustomers") %>',
                    data: "{ 'prefix': '" + request.term + "'}",
                    dataType: "json",
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    success: function (data) {
                        response($.map(data.d, function (item) {
                            return {
                                label: item.split('-')[0],
                                val: item.split('-')[1]
                            }
                        }))
                    },
                    error: function (response) {
                        alert(response.responseText);
                    },
                    failure: function (response) {
                        alert(response.responseText);
                    }
                });
            },
            select: function (e, i) {
                var selectedValue = i.item.label.trim();
                $.ajax({
                    url: '<%=ResolveUrl("~/CS.aspx/GetLink") %>',
                    data: "{ 'selected': '" + selectedValue + "'}",
                    dataType: "json",
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    success: function (data) {
                        document.location.href = data.d;
                    },
                    error: function (response) {
                        alert(response.responseText);
                    },
                    failure: function (response) {
                        alert(response.responseText);
                    }
                });
            },
            minLength: 1
        });
    });   
</script>
Enter search term:
<asp:TextBox ID="txtSearch" runat="server" />

Code

C#

[WebMethod]
public static string[] GetCustomers(string prefix)
{
    List<string> customers = new List<string>();
    using (SqlConnection conn = new SqlConnection())
    {
        conn.ConnectionString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (SqlCommand cmd = new SqlCommand())
        {
            cmd.CommandText = "select ContactName, CustomerId from Customers where ContactName like @SearchText + '%'";
            cmd.Parameters.AddWithValue("@SearchText", prefix);
            cmd.Connection = conn;
            conn.Open();
            using (SqlDataReader sdr = cmd.ExecuteReader())
            {
                while (sdr.Read())
                {
                    customers.Add(string.Format("{0}-{1}", sdr["ContactName"], sdr["CustomerId"]));
                }
            }
            conn.Close();
        }
    }
    return customers.ToArray();
}

[WebMethod]
public static string GetLink(string selected)
{
    // Get DataTable from database that contains url for respective name.
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)), new DataColumn("Name"), new DataColumn("Url") });
    dt.Rows.Add(1, "Maria", "http://www.aspsnippets.com/");
    dt.Rows.Add(2, "Mudassar Khan", "http://www.aspforums.net/Threads");
    dt.Rows.Add(3, "Maria Larsson", "http://www.jqueryfaqs.com/");
    dt.Rows.Add(4, "Mario Pontes", "http://stackoverflow.com/");
    DataRow[] dr = dt.Select("Name='" + selected + "'");
    string url = "";
    foreach (DataRow row in dr)
    {
        url = row["Url"].ToString();
    }
    return url;
}

VB.Net

<WebMethod> _
Public Shared Function GetCustomers(prefix As String) As String()
	Dim customers As New List(Of String)()
	Using conn As New SqlConnection()
		conn.ConnectionString = ConfigurationManager.ConnectionStrings("constr").ConnectionString
		Using cmd As New SqlCommand()
			cmd.CommandText = "select ContactName, CustomerId from Customers where ContactName like @SearchText + '%'"
			cmd.Parameters.AddWithValue("@SearchText", prefix)
			cmd.Connection = conn
			conn.Open()
			Using sdr As SqlDataReader = cmd.ExecuteReader()
				While sdr.Read()
					customers.Add(String.Format("{0}-{1}", sdr("ContactName"), sdr("CustomerId")))
				End While
			End Using
			conn.Close()
		End Using
	End Using
	Return customers.ToArray()
End Function

<WebMethod> _
Public Shared Function GetLink(selected As String) As String
	' Get DataTable from database that contains url for respective name.
	Dim dt As New DataTable()
	dt.Columns.AddRange(New DataColumn(2) {New DataColumn("Id", GetType(Integer)), New DataColumn("Name"), New DataColumn("Url")})
	dt.Rows.Add(1, "Maria", "http://www.aspsnippets.com/")
	dt.Rows.Add(2, "Mudassar Khan", "http://www.aspforums.net/Threads")
	dt.Rows.Add(3, "Maria Larsson", "http://www.jqueryfaqs.com/")
	dt.Rows.Add(4, "Mario Pontes", "http://stackoverflow.com/")
	Dim dr As DataRow() = dt.[Select]((Convert.ToString("Name='") & selected) + "'")
	Dim url As String = ""
	For Each row As DataRow In dr
		url = row("Url").ToString()
	Next
	Return url
End Function

Screenshot