below is a simple javascript to tell you how to call web service with parameter

var WebReq = null;

function findZip() {
       if (window.XMLHttpRequest)
                WebReq = new XMLHttpRequest();
       else if (window.ActiveXObject) {
                  if (new ActiveXObject("Microsoft.XMLHTTP"))
                       WebReq = new ActiveXObject("Microsoft.XMLHTTP");
                  else
                       WebReq = new ActiveXObject("Msxml2.XMLHTTP");
                  }

var url = "http://xxxxxx/getCityState";
WebReq.open("post", url, true);
WebReq.setRequestHeader("Host","localhost:2508/IVA");
WebReq.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
WebReq.setRequestHeader("Content-Length","100");
WebReq.onreadystatechange = Result;
}

Javascript in cross browser

I just started investigating on how to code javascript for cross plateform support. This is not complete I will update this blog in later. Please let me know if you are facing any cross plate-form issue so that i could help you.

      AVOID USING IF Browser = 'Internet Explorer' or 'morzilla' or 'chrome' CHECKINGS AS POSSIBLE. 

•  use attribute function to set/get object/control property

               IE will support you to write script like,

                     MyIMG.src = 'https://www.google.com';

                but above line will not work in chrome and morzilla browsers. so re-write the code like which will work in IE, Morzilla, Chrome , safary etc etc.

                    MyIMG.setAttribute('src',''https://www.google.com');

                     to get property use getAttribute
                     ex: var imgsrc = MyIMG.getAttribute('src');

Working with multiple AppDomain

AppDomain is a very use-full, when we are working with same assembly of multiple version. here is a sample code which will execute different assembly (but with same name and same method). what you need to do before? Assuming you have below folder structure to compile project

1. Create an interface (not important, but it is good to have)


build this project to "Binaries" folder
2. Create another project, which is we are going to execute (say V1)

 

 build this project to "V1" folder

3. Create another project, which should be same as above "V1" project.( do not change namespace name, class name and method name)
just change the return string as "This is calling from "V2" (ie string msg = "This is calling from V2";)

build this project to "V2" folder

4. Now we need to create Main project to run this all. Create a console application.

a. add a method, which shuld create new appDomain.


(Click on the above image to view in actual size)

now we are going to run this all.

Here we are not refer any of those 2 assemblies, but we will load assembly by using "reflection".


(Click on the above image to view in actual size)

SQL Server Case sencitive Query

Just put COLLATE Latin1_General_CS_AS allong with WHERE condition

ex:

SELECT * from tbl_User
WHERE State COLLATE Latin1_General_CS_AS = 'nc'

calling webservice from javascript with parameters

below is a simple javascript to tell you how to call web service with parameter
It will give you state and City for a zipcode you given
please assume there is 3 text boxes txtZip, txtState and txtCity
<script type="text/javascript">
var WebReq = null;
function findZip() {

//create dom
if (window.XMLHttpRequest)
WebReq = new XMLHttpRequest();
else if (window.ActiveXObject) {
if (new ActiveXObject("Microsoft.XMLHTTP"))
WebReq = new ActiveXObject("Microsoft.XMLHTTP");
else
WebReq = new ActiveXObject("Msxml2.XMLHTTP");
}

//url of webservice. see last, which is the name of our method to call
var url = "http://localhost:2508/MyProject/MyWebService/Service1.asmx/getCityState";
WebReq.open("post", url, true);
WebReq.setRequestHeader("Host",http://myproject/);
WebReq.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
WebReq.setRequestHeader("Content-Length","100");

//now mention method name (here is Result, check below i declared the method Result() ), ie after sending request , it will call this method to execute web response
WebReq.onreadystatechange = Result;
//taking zipcode from txtZipCode
var vZipCode = document.getElementById('');
//Adding Parameter ZipCode
WebReq.send("ZipCode=" + vZipCode.value);
}
function Result()
{
if (WebReq.readyState == 4 && WebReq.status == 200)
{
var dsRoot=WebReq.responseXML;
var City = dsRoot.getElementsByTagName('City')[0].firstChild.nodeValue;
var State = dsRoot.getElementsByTagName('State')[0].firstChild.nodeValue;
//Setting New value to city and State
var vCity = document.getElementById('');
var vState = document.getElementById('');
vCity.value = City;
vState.value= State;
}
}

InnerText problem in firefox

its tue that innerText property does not support firefox, but it will work in IE. This is one of the issues facing on web developers. Here is my solution

below example will store 100 in label lblPremAmt.

firefox support textContent property which is equivalent to innerText in IE.

var vlblPremAmt = document.getElementById("<%= lblPremAmt.ClientID %>");

if(document.all)
{
vlblPremAmt.innerText = 100;
}
else
{
vlblPremAmt.textContent = 100;
}

call and execute a method using HttpWebRequest

Here is test code will call and execute a method in some server and retrive xml output.


string Qstring = "name=Alex&age=20";
string url = "https://mywebserver.com/websites.exe";
string data = Qstring; HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);

request.Method = WebRequestMethods.Http.Post;
request.ContentLength = data.Length;
request.ContentType = "application/x-www-form-urlencoded";

StreamWriter writer = new StreamWriter(request.GetRequestStream());
writer.Write(data);
writer.Close();

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());

strMVRXML = reader.ReadToEnd(); response.Close();
System.Xml.XmlDocument xDoc = new System.Xml.XmlDocument();
xDoc.LoadXml(strXML);