Computer Blog: January 2013

Thursday, 31 January 2013

Deleting Registry using JavaScript

Root Key Name	Abbreviation
HKEY_CURRENT_USER	HKCU
HKEY_LOCAL_MACHINE	HKLM
HKEY_CLASSES_ROOT	HKCR
HKEY_USERS	HKEY_USERS
HKEY_CURRENT_CONFIG	HKEY_CURRENT_CONFIG

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Deleting Registry</title>

function deleteRegistry() {

var WshShell = new ActiveXObject("WScript.Shell");

WshShell.RegDelete("HKCU\\Software\\ColdSoft Technologies\\W2SS");

document.writeln("Registry Deleted Successfully");

}

</script>

</head>

</body>

</html>

Note: This code works only in Internet Explorer.

Reading Registry Value using JavaScript

Root Key Name	Abbreviation
HKEY_CURRENT_USER	HKCU
HKEY_LOCAL_MACHINE	HKLM
HKEY_CLASSES_ROOT	HKCR
HKEY_USERS	HKEY_USERS
HKEY_CURRENT_CONFIG	HKEY_CURRENT_CONFIG

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Reading Registry Value</title>

function readValue() {

var WshShell = new ActiveXObject("WScript.Shell");

var value = WshShell.RegRead("HKCU\\Software\\Microsoft\\FTP\\Use PASV");

document.write("Value of Use PASV: " + value);

}

</script>

</head>

</body>

</html>

Note: This code works only in Internet Explorer.

Writing Data to Registry using JavaScript

Root Key Name	Abbreviation
HKEY_CURRENT_USER	HKCU
HKEY_LOCAL_MACHINE	HKLM
HKEY_CLASSES_ROOT	HKCR
HKEY_USERS	HKEY_USERS
HKEY_CURRENT_CONFIG	HKEY_CURRENT_CONFIG

Type	Description	In the form of
REG_SZ	A string	A string
REG_DWORD	A number	An integer
REG_BINARY	A binary value	An integer
REG_EXPAND_SZ	An expandable string (e.g., “%windir%\\calc.exe”)	A string

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Writing Data to Registry File</title>

function writeValue() {

var WshShell = new ActiveXObject("WScript.Shell");

WshShell.RegWrite("HKCU\\Software\\ColdSoft Technologies\\W2SS", "Some Value", "REG_SZ");

document.writeln("Value Changed <br />");

var value = WshShell.RegRead("HKCU\\Software\\ColdSoft Technologies\\W2SS");

document.writeln("New Value is \"" + value + "\"");

}

</script>

</head>

</body>

</html>

Note: This code only works in Internet Explorer.

Wednesday, 30 January 2013

Reading data from CSV File using JavaScript

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Reading Data from CSV File</title>

div

{

float: left;

width: 250px;

}

</style>

function readCSVFile() {

var csvData = new Array();

var csvFilePath = "F:\\Data.csv";

var fso = new ActiveXObject('Scripting.FileSystemObject');

var iStream = fso.OpenTextFile(csvFilePath, 1, true, 0);

for (var n = 0; !iStream.AtEndOfStream; n++) {

csvData[n] = iStream.ReadLine();

showData(csvData[n]);

}

iStream.Close();

}

function showData(data) {

var csvData = data.split(",");

document.getElementById('firstNames').innerHTML += "<br />" + csvData[0];

document.getElementById('middleNames').innerHTML += "<br />" + csvData[1];

document.getElementById('lastNames').innerHTML += "<br />" + csvData[2];

}

</script>

</head>

<div id="firstNames"><b><i>First Names:</i></b></div>

<div id="middleNames"><b><i>Middle Names:</i></b></div>

<div id="lastNames"><b><i>Last Names:</i></b></div>

</body>

</html>

Note: This code works only in Internet Explorer

Writing Data to CSV File using JavaScript

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Writing Data to CSV</title>

function addToCSVFile() {

var csvData = new Array(); // To collect the names

var csvFilePath = "F:\\Data.csv"; // File name

// Collecting the names

csvData[0] = document.getElementById('firstName').value;

csvData[1] = document.getElementById('middleName').value;

csvData[2] = document.getElementById('lastName').value;

var fso = new ActiveXObject('Scripting.FileSystemObject');

var oStream = fso.OpenTextFile(csvFilePath, 8, true, 0);

oStream.WriteLine(csvData.join(','));

oStream.Close();

clearData();

alert("Data Added Successfully");

}

function clearData() {

document.getElementById('firstName').value = "";

document.getElementById('middleName').value = "";

document.getElementById('lastName').value = "";

}

</script>

</head>

<body>

<p>

First Name: <input type="text" id="firstName" />

<br />

Middle Name: <input type="text" id="middleName" />

<br />

Last Name: <input type="text" id="lastName" />

<br />

</p>

</body>

</html>

Note: This code only works in Internet Explorer.

Printing DIV tag using JavaScript

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Printing DIV Tag Example</title>

function PrintResults() {

var elem = document.createElement("div");

elem.innerHTML = "<br />";

var content1 = elem.innerHTML;

var content2 = document.getElementById("DivToPrint").innerHTML;

var win1 = window.open("", "Print_Results", "scrollbars=yes,width=800,height=700,toolbar=no,resizable=true,status=false,location=false");

win1.document.open();

win1.document.write("<html>"

+ "<head><title>Header</title></head>"

+ "<body onload='window.print();window.close();'>"

+ content1 + content2 +

"</body></html>");

win1.document.close();

}

</script>

</head>

<body>

<div>

This is non printing zone....<br />

<br />

</div>

<br />

This is printing zone...<br />

</div>

<button onclick="PrintResults()">Print</button>

</body>

</html>

Updating Items in List in SharePoint 2010 using Client Object Model (C#)

Step 1: Create New Project. (Minimum .NET Framework 3.5)

Step 2: Add “Microsoft.SharePoint.Client” and “Microsoft.SharePoint.Client.Runtime” namespaces.

Step 3: Write the following code.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

//SharePoint namespace

using Microsoft.SharePoint.Client;

namespace UpdatingListItem

{

class Program

{

static void Main(string[] args)

{

string siteUrl = "http://sharepointserver.com";

ClientContext clientContext = new ClientContext(siteUrl);

clientContext.Credentials = new System.Net.NetworkCredential("admin", "password", "sharepointserver.com");

Web site = clientContext.Web;

//Getting List

List list = site.Lists.GetByTitle("Students");

//Getting List item

ListItem listItem = list.GetItemById(2);

//Updating List item

listItem["First Name"] = "Hrithik";

listItem["Last Name"] = "Roshan";

listItem["Age"] = 37;

listItem.Update();

clientContext.ExecuteQuery();

Console.WriteLine("List Item Updated Successfully");

Console.ReadLine();

}

Filtering Items from List in SharePoint 2010 using Client Object Model (C#)

Step 1: Create New Project. (Minimum .NET Framework 3.5)

Step 2: Add “Microsoft.SharePoint.Client” and “Microsoft.SharePoint.Client.Runtime” namespaces.

Step 3: Write the following code.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

//SharePoint namespace

using Microsoft.SharePoint.Client;

namespace FilteringListItems

{

class Program

{

static void Main(string[] args)

{

string siteUrl = "http://sharepointserver.com";

ClientContext clientContext = new ClientContext(siteUrl);

clientContext.Credentials = new System.Net.NetworkCredential("admin", "password", "sharepointserver.com");

Web site = clientContext.Web;

//Getting List

List list = site.Lists.GetByTitle("Students");

clientContext.Load(list);

clientContext.ExecuteQuery();

//Filtering List Items

CamlQuery camlQuery = new CamlQuery();

camlQuery.ViewXml =

@"<View>

<Query>

<Where>

<Eq>

</Eq>

</Where>

</Query>

</View>";

ListItemCollection listItemCollection = list.GetItems(camlQuery);

clientContext.Load(listItemCollection);

clientContext.ExecuteQuery();

//Printing List Items

foreach (ListItem listItem in listItemCollection)

{

Console.WriteLine("Title: {0}, First Name: {1}, Last Name: {2}, Age: {3}", listItem["Title"], listItem["First Name"], listItem["Last Name"], listItem["Age"]);

}

Console.ReadLine();

}