Add Functionality To Get Distance Between Cities/zip Codes Into Website?
Oct 22, 2010
Im looking for the functionality seen in most commercial websites like google maps to get approximate distance between cities and zip codes. Im guessing these sites are using huge databases with all this information already in them. It would be interesting to learn how to create this functionality myself but Im sure that would require a great deal of time. So Im looking for a package where someone has already done the work(an API) that would allow me to enter two different zip codes or maybe two different city,state combinations and take actions from there.
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[Code]....
and the combo box in designer
<div class="row">
<label>
City :</label>
<ajaxToolkit:ComboBox ID="ddCities" runat="server" AutoPostBack="False"
DropDownStyle="DropDownList"
AutoCompleteMode="SuggestAppend"
CaseSensitive="False"
CssClass=""
ItemInsertLocation="Append" Width="380px"></ajaxToolkit:ComboBox>
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Nov 13, 2010
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[URL]
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here is my part of code
lat = Convert.ToDouble( (s3[a]));
longt =Convert.ToDouble( (s4[a]));
Avg_lat = pc._Latitude - lat;
Avg_longt = pc._Longitude - longt;
a_hold =( Math.Sin(Avg_lat / 2) * Math.Sin(Avg_lat / 2) )+ (Math.Cos(pc._Latitude) * Math.Cos(lat)) * (Math.Sin(Avg_longt / 2) * Math.Sin(Avg_longt / 2));
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WITH
EXECUTE AS CALLER
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SELECT [country_id], [country_name]
FROM country
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public class PopulateLists
{
public int FillCountry(ref System.Web.UI.WebControls.DropDownList drpdown)
{
SqlDatabase db = new SqlDatabase();
DbCommand cmd=db.GetStoredProcCommand("USP_countryselect");
DataSet dsCountry= db.ExecuteDataSet(cmd);
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drpdown.DataValueField = dsCountry.Tables[0].Columns["country_id"].ToString() ;
drpdown.DataBind();
return 1;
}
public int FillState(ref System.Web.UI.WebControls.DropDownList drpdown)
{
SqlDatabase db = new SqlDatabase();
DbCommand cmd = db.GetStoredProcCommand("USP_statesselect");
DataSet dsStates = db.ExecuteDataSet(cmd);
drpdown.DataSource = dsStates.Tables[0];
drpdown.DataTextField = dsStates.Tables[0].Columns["state_name"].ToString();
drpdown.DataValueField = dsStates.Tables[0].Columns["state_id"].ToString();
drpdown.DataBind();
return 1;
}
.
.
.
}
protected void Page_Load(object sender, EventArgs e)
{
BindDropdowns();
}
protected void BindDropdowns()
{
PopulateLists objPopulateLists = new PopulateLists();
int bytReturn;
bytReturn = objPopulateLists.FillCountry(ref Drpcountry);
bytReturn = objPopulateLists.FillState(ref Drpstate);
bytReturn = objPopulateLists.FillCity(ref Drpcity);
}
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Following the series of question, this is the code as of now has been developed and working fine. Now need to make some more tweek with this
1. Instead of distance from source to destination in KM can we have it in Miles
2. I need to show the distance between source and destinace only if destination falls under 25 mile radius from source else need to show the label message that no record found.
Here is the code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="sqlmap.aspx.cs" Inherits="sqlmap" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
[Code] ....
C# file
-----
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
[Code] ....
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Jan 26, 2010
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Mar 26, 2016
I used a Google Maps Distance Finder API that comes with two textboxes, one for the source, and one for the destination. It also comes with a button, that when clicked, will find the distance between the two locations using the funciton GetDistance(). The code before the function initializes the map. I created another button and used VB.Net to run SQL code first, and then to automatically populate the two textboxes, then I had it call the function GetDistance().
The issue I ran into is that the function won't calculate the distance, and the map never changes from its default state. I believe it's because it's not running the code that initializes the map. (I could be wrong) I have tried WebBrowser1, to call the click of the button, but I had to Inherit Forms, which I can't do, and I have also tried adding the top code into the GetDistance() function. Is it possible to call the initializing code before GetDistance()?
Here is the JS function code:
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false&libraries=places"></script>
<script type="text/javascript">
var source, destination;
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
google.maps.event.addDomListener(window, 'load', function () {
[Code] ....
Here is the VB Code I use to call the JS Function:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim cn As New OleDb.OleDbConnection("Provider = Microsoft.ACE.OleDb.12.0;" & _
"Data Source=|DataDirectory|Address Database One Calculation.mdb")
cn.Open()
Dim cmd1 As OleDb.OleDbCommand
Dim sqlconnection1 As String
[Code] .....
For reference, here is the explanation of the full API Code: [URL] ....
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Sep 7, 2010
I just had to moved a site of mine from a hosting service here in the states to an offshore host located in Malaysia. My database is still located on the east coast of north america and I am wondering if the distance between the database and the file system might be to blame for slow load times or if moving my database as well would be a waste of time.
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Jan 8, 2014
I have variable as
var from_Lati = 19.132324234 // from latitude
var from_longi = 19.11233334 // from longitude
and I have TO latitude and Longitude in Array as
var To_Lati = [18.132323,18.90941,18.31232423] // to latitude in array
var To_Longi = [18.2132123,18.242423,18.43243] // to longitude in array
I have gone through many reference on internet but can't find the solution for calculating the distance with respect to array.. Now I want to find the distance between them using JavaScript...
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May 7, 2015
I want to create a google maps that it can Calculate Distance, Travel Duration, draw (plot) Route between two locations and display Directions. Now I want to hide Directions Panel.
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