Archive for November, 2008

Disable Right Mouse Click Using JavaScript

November 19th, 2008 admin
Description:
This script will prevent the default right menu from popping up when the right mouse is clicked on the web page. Works well in IE4+ and NS4+.

To use this script, paste the following code in the <body> section of your HTML document.
 

Disable right click on mouse

 

Function to handle right click if the browser is IE

<script language="JavaScript">
var message=”Right Click is Disabled”;
function ExeForIE()
{
  if (event.button==2)
  {
     alert(message);
     return false;
  }
}
</script>

 

Function to handle right click if the browser is FireFox

<script language=JavaScript>
var message=”Right Click is Disabled”;
function ExeForFFox(evt)
{
  if (document.layersdocument.getElementById&&!document.all )
  {
    if (evt.which==2evt.which==3)
    {
      alert(message);
      return false;
    }
  }
}
 
if (document.layers)
{
  document.captureEvents(Event.MOUSEDOWN);
  document.onmousedown = ExeForFFox;
}
else if (document.all&amp;&amp;!document.getElementById)
{
  document.onmousedown = ExeForIE;
}
document.oncontextmenu=new Function(”alert(message);return false”)
</script>

Popularity: 1% [?]

Posted in Javascript Tags: , 1 Comment »

Block JavaScript Errors

November 18th, 2008 admin

We can have a function with return true and use it on window.onerror.Thus when the browser encounters a JavaScript error it returns true and block the error begin displayed.

function blkError()
{
  return true;
}
window.onerror = blkError;

Popularity: 2% [?]

Posted in Javascript Tags: , No Comments »

Open a File in Runtime in Java

November 16th, 2008 admin

Open a File in Runtime in Java:

1.Create a Object For Process

2.exec is a method to open a File in Runtime

3.In the exec Method, we can give all the command which can be give in the Run Window

Process process=Runtime.getRuntime().exec(“notepad d:\demo.txt”);

4.If it cannot Work,Copy Exe File and Paste it in C:\Windows\System32

Popularity: 1% [?]

Posted in Java No Comments »

Conditional Tags in JSP

November 14th, 2008 admin

The if tag allows the conditional execution of its body according to the value of the test attribute

<c:if test=”${not empty details.add}”>
It is Not a Empty ArrayList
</c:if>

<c:if test=”${empty details.add}”>
It is a Empty ArrayList
</c:if>

The choose tag performs conditional block execution by the embedded when subtags. It renders the body of the first when tag whose test condition evaluates to true. If none of the test conditions of nested when tags evaluates to true, then the body of an otherwise tag is evaluated, if present.

<c:choose>
<c:when test=”${bank.account== ‘saving’}”>
Saving Account
</c:when>
<c:when test=”${bank.account == ‘RD’}”>
RD Account
</c:when>
<c:when test=”${bank.account == ‘salary’}”>
Salary Account
</c:when>
<c:otherwise>
…
</c:otherwise>
</c:choose>

Popularity: 1% [?]

Posted in JSP No Comments »

Function To Generate Random Password using C#

November 14th, 2008 admin

usually you would send a random generated password while user does the registration process through your application.You can use the following code to achieve that.

public string Generate_Password()
{
string Password = “”;
byte Cnt, Idx;
string values = “0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ”;
Random rnd = new Random();
for (Cnt = 1; Cnt &lt;= 6; Cnt++)
{
Idx = (byte)rnd.Next(0, values.Length);
Password += values.Substring(Idx, 1);
}
return Password.Trim().ToUpper();
}

To Generate Random Password we have used the Random Class(Namespace:-System).To learn more about Random Class have a look at this MSDN LINK.

Popularity: 3% [?]

Posted in C# Tags: No Comments »

SQL Server Connection Using Integrated Security

November 14th, 2008 admin

When we are connecting sql server using windows authentication then we do not need to give the user name and pwd in the connection string. We have to provide the Integrated Security property to true.

SqlConnection con = new SqlConnection(“Server=servername;Integrated Security=true; Database=emp”);

Note : If your sql server is of windows authentication and if you dont provide Integrated Security you may get an error such as follows
Login failed for user ‘(null)’. Reason: Not associated with a trusted SQL Server connection.

Popularity: 1% [?]

Posted in Sql Server No Comments »

What is Delegate?

November 12th, 2008 admin

A delegate is a type that references a method.Once a delegate is assigned a method, it behaves exactly like that method. The delegate method can be used like any other method,with parameters and a return value.

Any method that matches the delegate’s signature,which consists of the return type and parameters,can be assigned to the delegate.

Delegates allow methods to be passed as parameters.It can be used to define callback methods.

Popularity: 1% [?]

Posted in C#, What-is Tags: 1 Comment »

Data Source Object

November 12th, 2008 admin
What is Data Source Object?

A data source object (DSO) is a Microsoft ActiveX object embedded within a Web page. It employs a process called data binding, in which an ActiveXControl communicates directly with another Web page, or with an external XML source.

In order to take advantage of DSOs, it is necessary to have Internet Explorer version 4.0 or later. Web developers commonly create their own DSOs. For example, an animated weather radar image from the National Hurricane Center can be displayed continuously on the home page of a municipal civil defense department, without the need for clicking on a link to get to the National Hurricane Center site.

Data source objects are sometimes used for the purpose of implementing This type of intrusion shows up on spyware detection programs as a DSO exploit. Such spyware can be difficult to eradicate, and if it is successfully removed, it often returns.

Popularity: 1% [?]

Posted in What-is 1 Comment »

What is ViewState ?

November 10th, 2008 admin

ASP.NET view state is the technique used by an ASP.NET Web page to persist
changes to the state of a Web Form across postbacks.That is when a form is submitted in ASP .NET, the form reappears in the browser window together with all form values.

The ViewState indicates the status of the page when submitted to the server. The status is defined through a hidden field placed on each page with a <form runat=”server”> control.

Hidden field placed on each page would be something as this
< input type=”hidden” name=”__VIEWSTATE” value=”CEbzzzEnmmz+Bc8IDFlnpgCLJ/HB00.” >
Maintaining the ViewState is the default setting for ASP.NET Web Forms. If you want to NOT maintain the ViewState, include the directive l%@ Page EnableViewState=”false” %> at the top of an .aspx page or add the attribute EnableViewState=”false” to any control.

Popularity: 1% [?]

Posted in Asp.net, What-is Tags: No Comments »

Java with Sql Server

November 10th, 2008 admin

How to Connect Java with Sql Server :

1.import sql package

2.Give all the Supporting class in class.forName

3.Give Ipaddress or Computer Name in dburl or in getConnection

4.Use 1433 port Number as Default Port.

5.Give Username and Password in getConnection

6.Open the Connection using createStatement

7.Execute the query String using executeQuery Statement

8.Fetch the Record one by one Using ResultSet

9.Close the Connection

import java.io.*;
import java.sql.*;
public class sqlserverConnection
{
public static String dburl=”jdbc:mysql://localhost:1433”;
public static String username=”admin”;
public static String pwd=”pass”;
public static Connection con=null;
public static Statement stmt=null;
public static ResultSet rs=null;

public static void main(String[] args)
{
try {

Class.forName( “com.microsoft.jdbc.sqlserver.SQLServerDriver” );
con=DriverManager.getConnection(dburl,username,pwd);
stmt=con.createStatement();
rs=stmt.executeQuery(”SELECT * FROM demo”);
while(rs.next())
{
String name=rs.getString(1);
}
}
catch(SQLException sqlExcp)
{
sqlExcp.printStackTrace();
}
}
}

Popularity: 1% [?]

Posted in Java No Comments »
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