How to set mouse pointer focus in page load using csharp(c#)

Posted by senthil | 5:56:00 PM | , | 0 comments »

This is one of the method to set mouse pointer focus in page load  on first text-box or
dropdownlist. 

Page.ClientScript.RegisterStartupScript(this.GetType(), "Setfocus", "document.getElementById('" +ddlCountry.ClientID+"').focus();", true);


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How to write error messages into a text file in ASP.NET

Posted by Prince | 11:27:00 AM | | 0 comments »

Create log file in asp.net using C# :
                                                                                        Dot net have  various classes to create, write  on a text file . Here I'm using create() method to create a text file and using some classes to reading and writing text files those are TextReader,StreamReader,StreamWriter,TextWriter classes.These are abstract classes .Here i have taken a logfilepath which is the physical path of the text file.If the file is existing in path then we will write (log) messages into this text file.If the file is not existing in the path then we will create a file in this path and write a message into it  
public static string strPath = AppDomain.CurrentDomain.BaseDirectory;
public static string strLogFilePath = strPath + @"log\log.txt";
public static void WriteToLog(string msg)
 {
  try
   {
    if (!File.Exists(strLogFilePath))
       {
       File.Create(strLogFilePath).Close();
       }
    using (StreamWriter w = File.AppendText(strLogFilePath))
       {
        w.WriteLine("\r\nLog: ");
        w.WriteLine("{0}",DateTime.Now.ToString(CultureInfo.InvariantCulture));
        string err = "Error Message:" + msg;
        w.WriteLine(err);
        w.Flush();
        w.Close();
       }
   }

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Adding Line Breaks into Text Area using JavaScript

Posted by Prince | 5:48:00 PM | , | 1 comments »

Textarea - output not showing linebreaks:
        Whitespace in HTML output, including many white-space characters in a row,is displayed in HTML pages as a single  ordinary space. And a line break also considered as whitespace.
If you want to display text that includes linebreaks in HTML so that the linebreaks show, you can do the following ways
  •  Put the text in between <pre> and </pre> tags.
  • (Use your server/client side language to convert the line breaks into <br /> tags.

For example,
Adding Line Breaks into Text Area using JavaScript:

var strAddress= document.forms[0].txt.value;
text = strAddress.replace(/\n\r?/g, '<br />');

Adding Line Breaks into Text Area using PHP:

$strAddress = str_replace("<br>", "\n", $strAddress);
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Password strength with JavaScript

Posted by Prince | 7:48:00 PM | | 0 comments »

Check Password Strength with JavaScript and Regular Expressions:
This post is  good example of a Password Strength checker that uses JavaScript and Regular Expressions. It check the following conditions to create secure password.
  • The password must contains greater than 6 character
  • The password must have both lower and uppercase characters
  • The password must have at least one number
  • The password must have at least one special character
   PasswordStrength.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  
    <title>Dotnetcluster-Password strength checker</title>
<!-- http://dotnetcluster.blogspot.in -->
    <script language="javascript" type="text/javascript">
 
function pwdStrength(password)
{
        var desc = new Array();
        desc[0] = "Very Weak";
        desc[1] = "Weak";
        desc[2] = "Better";
        desc[3] = "Medium";
        desc[4] = "Strong";
        desc[5] = "Strongest";
        var score   = 0;
        //if password bigger than 6 give 1 point
        if (password.length > 6) score++;
        //if password has both lower and uppercase characters give 1 point      
        if ( ( password.match(/[a-z]/) ) && ( password.match(/[A-Z]/) ) ) score++;
        //if password has at least one number give 1 point
        if (password.match(/\d+/)) score++;
        //if password has at least one special caracther give 1 point
        if ( password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/) ) score++;
        //if password bigger than 12 give another 1 point
        if (password.length > 12) score++;
         document.getElementById("pwdDescription").innerHTML = desc[score];
         document.getElementById("pwdStrength").className = "strength" + score;
}
  
    </script>
</head>
<body>
    <table>
        <tr>
            <td>
          
                    Password<input type="password" name="pass" id="pass" onkeyup="pwdStrength(this.value)" />
            </td>
            <td>
                <div id="pwdDescription" style="color: red"">
                    <b>Password</b>
                </div>
            </td>
        </tr>
       
    </table>
</body>
</html>
 Demo for check password strength:
Password
Password
That's all. If this post is useful for you , please share this to your friends. Thanks!
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Auto Tab using JavaScript

Posted by Prince | 7:24:00 PM | | 0 comments »

Auto Tab Form Fields using JavaScript:
                   This a simple sample code for auto tab form fields using javascript.  It works in conjunction with the "maxlength" attribute of HTML, triggered whenever the user's input reaches the maxlength's value.
Code:

<script type="text/javascript">
/*
Auto tabbing script http://dotnetcluster.blogspot.in/
*/
function autoTab(current,next){
if (current.getAttribute&&current.value.length==current.getAttribute("maxlength"))
next.focus()
}

</script>

<b>Enter your input:</b>
<form name="fromAutoTab">
<input type="text" name="first" size="4" onkeyup="autoTab(this, document.fromAutoTab.second)"
    maxlength="3" />
<input type="text" name="second" size="4" onkeyup="autoTab(this, document.fromAutoTab.third)"
    maxlength="3" />
<input type="text" name="third" size="5" maxlength="4" />
</form>
  Try this demo:
  Enter your input:

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