Comments by promod madushan (Top 116 by date)

i'm using c# controls?
the concept is there are two combo boxes and one textbox, two radio buttons..
Usertype = Combobox
Username = Combobox
PAssword = Textbox
New user = Radio button
Excisting user = Radio button

this application for small company

there are two usertypes = HR and IT

if some one select hr... it will load all the usernames from the database which related to HR.. so as IT users

if user select new user radio button... one textbox will visible to new users to password authentication

other thing is if user select existing user radio button
it will compare user input password with database one and gives user to access

This solution gives this Error?
"Object reference not set to an instance of an object."

Code:-
String Usertype = UserType_CMBbox.SelectedValue.ToString();

@sampth here my current code... i created this code for get longitude and latitude.... and aftr i get latlng.... i'm passing it to the label...

so now i want to pass latlong or two positions to the direction api as well to get direction

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
//using System.Web.UI.Page;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.IO;
using System.Xml;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;






public partial class Login : System.Web.UI.Page
{

protected void Page_Load(object sender, EventArgs e)
{
//Page.ClientScript.RegisterStartupScript(Page.GetType(), "script",
//"calcRoute()", true);
//String var1;
//this.Button1.Attributes.Add("onClick", "calcRoute()");
//ScriptManager.RegisterStartupScript(this, this.GetType(), "isActive", "calcRoute();", true);
}
public void Button1_Click(object sender, EventArgs e)
{

String Strt_Address = TextBox1.Text;
String End_Address = TextBox2.Text;

//var element = Request["TextBox1"];
//var element2 = Request["TextBox2"];

string geocodeUrl1 = string.Format(@"http://maps.googleapis.com/maps/api/geocode/xml?address={0}&sensor=false", Strt_Address);

string geocodeUrl2 = string.Format(@"http://maps.googleapis.com/maps/api/geocode/xml?address={0}&sensor=false", End_Address);



XmlDocument geocodeXmlDoc1 = new XmlDocument();
geocodeXmlDoc1.Load(geocodeUrl1);

XmlDocument geocodeXmlDoc2 = new XmlDocument();
geocodeXmlDoc2.Load(geocodeUrl2);

//XmlDocument geoDirectXmlDoc = new XmlDocument();
//geoDirectXmlDoc.Load(geoDirect1);

XmlNamespaceManager XmlMngr1 = new XmlNamespaceManager(geocodeXmlDoc1.NameTable);
XmlMngr1.AddNamespace("geo", @"http://www.w3.org/2003/01/geo/wgs84_pos#");

XmlNamespaceManager XmlMngr2 = new XmlNamespaceManager(geocodeXmlDoc2.NameTable);
XmlMngr2.AddNamespace("geo", @"http://www.w3.org/2003/01/geo/wgs84_pos#");

// Code for directions

// longitude and latitude set
string sLong1 = geocodeXmlDoc1.DocumentElement.SelectSingleNode(@"//geometry/location/lat", XmlMngr1).InnerText;
string sLat1 = geocodeXmlDoc1.DocumentElement.SelectSingleNode(@"//geometry/location/lng", XmlMngr1).InnerText;

string sLong2 = geocodeXmlDoc2.DocumentElement.SelectSingleNode(@"//geometry/location/lat", XmlMngr2).InnerText;
string sLat2 = geocodeXmlDoc2.DocumentElement.SelectSingleNode(@"//geometry/location/lng", XmlMngr2).InnerText;

Label1.Text = sLong1 + ", " + sLat1;
Label2.Text = sLong2 + ", " + sLat2;

//Label1.Text ="6.927079, 79.861243";
//Label2.Text = "6.890770, 79.871684";

//ScriptManager.RegisterStartupScript(this, this.GetType(), "onSubmit", "calcRoute();", true);
//Page.ClientScript.RegisterClientScriptBlock(typeof(ScriptManager), "CallMyMethod", "calcRoute();");
//print.Attributes.Add("onclick", "calcRoute();");
//ScriptManager.RegisterStartupScript(Page, GetType(), "JsStatus", "calcRoute();", true);
//ScriptManager.RegisterStartupScript(this, this.GetType(), "isActive", "calcRoute();", true);

//ScriptManager.RegisterStartupScript(var1, var1.GetType(), "starScript", "calcRoute();", true);
//Label3.Text = "<script type='text/javascript'>showDialogue();</script>";

Page.ClientScript.RegisterStartupScript(Page.GetType(), "script",
"calcRoute()", true);



}

}

my question code ..... i created it manually
i'm bit mixed up with this code...........
thats why?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{


public class GMapUtil
{
public static List GetDirections(string origin, string destination)
{
var requestUrl = string.Format("http://maps.google.com/maps/api/directions/xml?origin={0}&destination={1}&sensor=false", origin, destination);
try
{
var client = new WebClient();
var result = client.DownloadString(requestUrl);
return ParseDirectionResults(result);
}
catch (Exception)
{
return null;
}
}

private static List ParseDirectionResults(string result)
{
var directionStepsList = new List();
var xmlDoc = new XmlDocument {InnerXml = result};
if (xmlDoc.HasChildNodes)
{
var directionsResponseNode = xmlDoc.SelectSingleNode("DirectionsResponse");
if (directionsResponseNode != null)
{
var statusNode = directionsResponseNode.SelectSingleNode("status");
if (statusNode != null && statusNode.InnerText.Equals("OK"))
{
var legs = directionsResponseNode.SelectNodes("route/leg");
foreach (XmlNode leg in legs)
{
int stepCount = 1;
var stepNodes = leg.SelectNodes("step");
var steps = new List();
foreach (XmlNode stepNode in stepNodes)
{
var directionStep = new DirectionStep();
directionStep.Index = stepCount++;
directionStep.Distance = stepNode.SelectSingleNode("distance/text").InnerText;
directionStep.Duration = stepNode.SelectSingleNode("duration/text").InnerText;

directionStep.Description = Regex.Replace(stepNode.SelectSingleNode("html_instructions").InnerText, "<[^<]+?>", "");
steps.Add(directionStep);
}

var directionSteps = new DirectionSteps();
Label1.Text = leg.SelectSingleNode("start_address").InnerText;
directionSteps.DestinationAddress = leg.SelectSingleNode("end_address").InnerText;
directionSteps.TotalDistance = leg.SelectSingleNode("distance/text").InnerText;
directionSteps.TotalDuration = leg.SelectSingleNode("duration/text").InnerText;
directionSteps.Steps = steps;

directionStepsList.Add(directionSteps);
}
}
}
}
return directionStepsList;
}
}


public class DirectionStep
{
public int Index { get; set; }
public string Description { get; set; }
public string Distance { get; set; }
public string Duration { get; set; }
}

public class DirectionSteps
{
public string TotalDuration { get; set; }
public string TotalDistance { get; set; }
public string OriginAddress { get; set; }
public string DestinationAddress { get; set; }
public List Steps { get; set; }
}
}
}



plsss some one tell me whats happen in here exactly........

currently i have found a way to gt lat and long...
but i want now is from lat lang i want to get direction and add those direction step into text area...


so for that... how can i change this code according to it.... and tell me how to do that....


pls pls pls