Refactor Code

Convert String Array to Separator String
by azamsharp on 7/24/2008 9:16:29 AM (C#)
Refactorings => 1
Here is a small piece of code that converts a string array to a separated string. The separator can be a comma, space etc.
// create a string out of an array
private static string GetSeparatedStringFromArray(string[] source, string separator)
{
StringBuilder sb = new StringBuilder();

foreach (string str in source)
{
sb.Append(str);
sb.Append(separator);
}

return sb.ToString().TrimEnd(separator);
}

Query XML using XPathDocument and XPathNodeIterator
by vipraIT on 7/22/2008 10:49:45 AM (XML)
Refactorings => 0
I try to query XML to retreive a particular element value but it gives complete XML document instead of particular element or node. XML document is like- Autobiography of Bebo Dev Robin 999.99
private void QueryXml()
{
XPathDocument document = new XPathDocument("\\books.xml");
XPathNavigator navigator = document.CreateNavigator();

// Select all books authored by Robin
XPathNodeIterator nodes = navigator.Select("descendant::book [author/last-name='Robin']");
while (nodes.MoveNext())
{
Clone the navigator returned by the Current property.
// Use the cloned navigator to get the title element.
XPathNavig

Extract File Name from URL Using JavaScript
by azamsharp on 7/18/2008 1:21:19 PM (JavaScript)
Refactorings => 0
I found this nifty code online that extracts file name from the url using JavaScript code. This can be performed better by using Regular Expressions (any takes?)
function getFileNameFromUrl(url)
{
wholeurl = url;
x = wholeurl.length;
while((wholeurl.substring(x,x-1)) != "/"){ x--; }
return wholeurl.substring(wholeurl.length,x);
}

Closing Popups When the Parent Window is Closed
by azamsharp on 7/8/2008 6:50:22 PM (JavaScript)
Refactorings => 0
My friend recently asked me how to close the child windows when the parent is closed. Here is the code that I came up with:
// create an array of popup window object. This is a global variable
var popups = new Array();

function openPopUp(url,name)
{
var popUp = window.open(url,name,"width=100,height=100");
popups.push(popUp);
}

<body onunload="destroyPopUps()">

function destroyPopUps()
{
if(popups.length == 0) return;

for(i=0; i<popups.length; i++)
{
popups[i].close();
}
}

Filling a DropDownList Using XML
by azamsharp on 7/8/2008 6:48:34 PM (XML)
Refactorings => 6
Some time back I had the requirement to fill the DropDownList control using XML file. Here is the code:
// The XML file
<?xml version="1.0" encoding="utf-8" ?>

<names>

<name>

<client>hank</client>

</name>

<name>

<client>corry</client>

</name>

<name>

<client>david</client>

</name>

<name>

<client>james</client>

</name>

</names>

And here is the C# code:

XmlDocument doc = new XmlDocument();

doc.Load(Server.MapPath