LINQ Sample

There are three parts in any LINQ Query
a. Data Source  - Could be an array collection, Database TAble, Object Collection, Etc...
b. Creating Query - The LINQ Query Creation
c. Executing Query - Query created doesn't get executed immedietly. It gets executed only during enumeraing the result

Sample

class SampleLINQ
{       
    static void Main()
    {
        //  1. Getting Data source.
        int[] intarray = new int[5] { 3, 1, 9, 63, 17};
        // 2. Query creation.
        var intenumQuery =
            from num in intarray
            where (num % 3) == 0
            select num;
        // 3. Query execution.
        foreach (int intvalue in intenumQuery )
        {
            Console.Write("{0,1} ", num);
        }
    }
}

Getting HTML from aspx page and save to file

This post gives the sample code to download the html of an aspx and save in to a file


Add reference to System.Net. namespace.

protected void Download_Click(object sender, EventArgs e)
     {
         WebClient mydwdClient = new WebClient();
         string currentUrl = Request.Url.ToString(); // The page which needs to be downloaded
         string webpageinHTML = String.Empty;
         byte[] bytHTML;
        UTF8Encoding utfenc= new UTF8Encoding();       
         bytHTML = mydwdClient.DownloadData(currentUrl );
        webpageinHTML = utfenc.GetString(bytHTML);         
         Response.Write(webpageinHTML );                   
     }
 
Another method which i found in asp.net forum is

protected override void Render(HtmlTextWriter writer)
{
StringBuilder sbOut = new StringBuilder();
StringWriter swOut = new StringWriter(sbOut);
HtmlTextWriter htwOut = new HtmlTextWriter(swOut);
base.Render(htwOut);
string sOut = sbOut.ToString();

// Send sOut as an Email

writer.Write(sOut);
}

Interview Questions

Here are some of the interview questions:
It is mixture of asp.net, C#, Vb.Net, OOPS, WebServices, WCF, SQL Server, SSRS, SSIS

a. What is the architecture of Ajax in asp.net (How it actually works)
b. How a asp.net page is processed
c. How to debug asp.net application, SQL Query
d. How to find the Stored Procedures property (what command)
e. DBCC - What for it is used
f. How to take and restore SQL Server Backup
g. How to find SQL Server property
h. What are asp.net page members and methods
i. How to deploy a SSRS report
j. What is delegate
k. What is the difference between delegate and Event
l. How to create cookies
m. What is WCF
n. Difference between WCF and Web Services
o. What is inner exception
p. What is IDisposable Interface
q. What is IEnumerable Interface

.......Will Keep Adding