Here I will show how to Import data from csv file to sql database or any other database.

//This is the connection string to connect to your csv file
string strConString = “Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\\; Extended Properties=\”Text;HDR=YES;\”";

// open connection
OleDbConnection oCon = new OleDbConnection(strConString);
oCon.Open();

// fill data set
string strSql = “SELECT * FROM csvfile.csv”; //csvfile should be present in c:
OleDbDataAdapter oDA = new OleDbDataAdapter(strSql, oCon);
DataSet oData = new DataSet();
oDA.Fill(oData, “ABC”);
GridView1.DataSource = oData;
GridView1.DataBind();

oCon.Close();

There may be requirement to throw error from Script Task.
Here’s a way to Throw error from Script Task.

//Code Starts Here
Try
‘method which throws an error
Catch e
Me.ComponentMetadata.FireError(-1, “”, “Your Error Message: ” + e.Message, “”, true)
While Not e.InnerException Is Nothing
e = e.InnerException
Me.ComponentMetadata.FireError(-1, “”, “InnerException: ” + e.Message, “”, true)
End While
End Try
//Code Ends Here

For logging this error, Use below Code..

Dts.Events.FireError(-1, “”, “Your Error Message: ” + e.ToString(), “”, 0)

Here ToString() will fetch all the InnerException Messages.

This post will show you how to log from the script task.
While logging from inbuilt log system this method helps you to log the exact details of the event in the script task.

using System;
using System.Data;
using System.Math;
using Microsoft.SqlServer.Dts.Runtime;

public class ScriptMain
{

public void Main()
{
//
int rowsProcessed = 100;
byte[] emptyBytes = new byte[0];

try
{
Dts.Log(“Rows processed: “+rowsProcessed.ToString, 0, emptyBytes);
Dts.TaskResult = Dts.Results.Success;
}
catch(Exception ex)
{
//An error occurred.
Dts.Events.FireError(0, “Script Task Example”, ex.Message+ControlChars.CrLf+ex.StackTrace, String.Empty, 0);
Dts.TaskResult = Dts.Results.Failure;
}

}

Here i will show how to send SMTP email from a script task rather than the SMTP Mail Task.

Imports System
Imports Microsoft.SqlServer.Dts.Runtime
Imports System.Net.Mail
Imports System.Net

Public Class ScriptMain
Public Sub Main()
Dim myHtmlMessage As MailMessage
Dim mySmtpClient As SmtpClient

myHtmlMessage=New MailMessage(name@helpindotnet.blogspot.com,
“name@helpindotnet.blogspot.com”, “Subject”, “body”)
mySmtpClient = New SmtpClient(“192.168.3.75″)
mySmtpClient.Credentials = CredentialCache.DefaultNetworkCredentials
mySmtpClient.Send(myHtmlMessage)
Dts.TaskResult = Dts.Results.Success

Dts.TaskResult = Dts.Results.Success
End Sub
End Class

Create a function in MSSQL to remove all special characters from XML.

ALTER FUNCTION [dbo].[RemoveSpChar]
(
– Add the parameters for the function here
@sInput varchar(MAX)=”
)
RETURNS varchar(MAX)
AS
BEGIN
– Declare the return variable here
DECLARE @sOutput Varchar(MAX),
@iIndex int,
@iLength int,
@sChar varchar(1),
@iASCII int,
@iLen int,
@iRem int

set @sInput= ltrim(rtrim(@sInput))
set @iLength = len(@sInput)
set @iIndex =1
set @sOutput=”

while @iIndex <= @iLength
begin
set @sChar=substring(@sInput,@iIndex,1)
set @iASCII=ascii(@sChar)

if ((@iASCII>=48 and @iASCII<=57) or (@iASCII>=65 and @iASCII<=90) or (@iASCII>=97 and @iASCII<=122) )
set @sOutput=@sOutput+@sChar
–return @sChar + ‘ – ‘ + convert(varchar,@iASCII)
set @iIndex =@iIndex +1
end

if len(@sOutput)>17
set @sOutput=substring(@sOutput,1,17)
else if len(@sOutput)<6
begin
set @iLen=len(@sOutput)
set @iRem=6-@iLen

set @sOutput=substring(@sOutput + replicate(‘0′,@iRem),1,6)

end

– Return the result of the function
RETURN @sOutput

END

This post shows you how to return XmlDataDocument from the database.
This helps you to fetch the xml data created in sql and use in asp.net.
If you are familiar how to get xml data from sql then this post helps you to fetch the xml data in XmlDataDocument.

//Code Starts Here

// http://helpindotnet.blogspot.com/
// http://helpindotnet.wordpress.com

public XmlDataDocument getauditnames(string prefixText, int count)
{

XmlDataDocument xml = new XmlDataDocument();
SqlConnection con = new SqlConnection(” <<Connection String >>”);
SqlCommand com = new SqlCommand(“<<Query>> For XML PATH (‘Path’), root(‘Root’)”, con);
//The key to this step is the FOR XML PATH(###), ROOT(###) part. This tells SQL Server to return XML with each row having the element name //”Path” of and the root of the XML document to be ROOT
con.Open();
XmlReader xdr = com.ExecuteXmlReader();
xml.Load(xdr);
xdr.Close();
con.Close();
return xml;
}
//Code Ends Here

<span style=”font-weight:bold;”>Here I will show you the easiest way to compress and Decompress (Gzip) a file using Asp.net with c#.
You can compress any file with this method.</span>

//Code Starts here

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.Compression;

/*
* http://helpindotnet.blogspot.com/
*/

namespace ConsoleApplication1
{
class GZipTest
{
private const int buffer_size = 100;

public static int ReadAllBytesFromStream(Stream stream, byte[] buffer)
{
// Use this method is used to read all bytes from a stream.
int offset = 0;
int totalCount = 0;
while (true)
{
int bytesRead = stream.Read(buffer, offset, buffer_size);
if (bytesRead == 0)
{
break;
}
offset += bytesRead;
totalCount += bytesRead;
}
return totalCount;
}

public static bool CompareData(byte[] buf1, int len1, byte[] buf2, int len2)
{
// Use this method to compare data from two different buffers.
if (len1 != len2)
{
Console.WriteLine(“Number of bytes in two buffer are different {0}:{1}”, len1, len2);
return false;
}

for (int i = 0; i < len1; i++)
{
if (buf1[i] != buf2[i])
{
Console.WriteLine(“byte {0} is different {1}|{2}”, i, buf1[i], buf2[i]);
return false;
}
}
Console.WriteLine(“All bytes compare.”);
return true;
}

public static void GZipCompressDecompress(string filename)
{
Console.WriteLine(“Test compression and decompression on file {0}”, filename);
FileStream infile;
try
{
// Open the file as a FileStream object.
infile = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
byte[] buffer = new byte[infile.Length];
// Read the file to ensure it is readable.
int count = infile.Read(buffer, 0, buffer.Length);
if (count != buffer.Length)
{
infile.Close();
Console.WriteLine(“Test Failed: Unable to read data from file”);
return;
}
infile.Close();
FileStream fs = new FileStream(filename+”.gz”, FileMode.Append);
MemoryStream ms = new MemoryStream();
// Use the newly created memory stream for the compressed data.
GZipStream compressedzipStream = new GZipStream(fs, CompressionMode.Compress, true);
Console.WriteLine(“Compression”);
compressedzipStream.Write(buffer, 0, buffer.Length);
// Close the stream.
compressedzipStream.Close();
Console.WriteLine(“Original size: {0}, Compressed size: {1}”, buffer.Length, fs.Length);

ms.WriteTo(fs);

// Reset the memory stream position to begin decompression.
ms.Position = 0;
GZipStream zipStream = new GZipStream(ms, CompressionMode.Decompress);
Console.WriteLine(“Decompression”);
byte[] decompressedBuffer = new byte[buffer.Length + buffer_size];
// Use the ReadAllBytesFromStream to read the stream.
int totalCount = GZipTest.ReadAllBytesFromStream(zipStream, decompressedBuffer);
Console.WriteLine(“Decompressed {0} bytes”, totalCount);

if (!GZipTest.CompareData(buffer, buffer.Length, decompressedBuffer, totalCount))
{
Console.WriteLine(“Error. The two buffers did not compare.”);
}
zipStream.Close();
} // end try
catch (InvalidDataException)
{
Console.WriteLine(“Error: The file being read contains invalid data.”);
}
catch (FileNotFoundException)
{
Console.WriteLine(“Error:The file specified was not found.”);
}
catch (ArgumentException)
{
Console.WriteLine(“Error: path is a zero-length string, contains only white space, or contains one or more invalid characters”);
}
catch (PathTooLongException)
{
Console.WriteLine(“Error: The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.”);
}
catch (DirectoryNotFoundException)
{
Console.WriteLine(“Error: The specified path is invalid, such as being on an unmapped drive.”);
}
catch (IOException)
{
Console.WriteLine(“Error: An I/O error occurred while opening the file.”);
}
catch (UnauthorizedAccessException)
{
Console.WriteLine(“Error: path specified a file that is read-only, the path is a directory, or caller does not have the required permissions.”);
}
catch (IndexOutOfRangeException)
{
Console.WriteLine(“Error: You must provide parameters for MyGZIP.”);
}
}

public static void Main(string[] args)
{

Console.WriteLine(“Start”);

GZipCompressDecompress(“c:\\Test1.txt”);

}
}
}

//Code Ends Here

<span style=”font-weight:bold;”>This is a short and sweet little tutorial to show you how to dynamically insert a new Javascript (or style sheet) into your web pages</span>

FOR CSS…
var headID = document.getElementsByTagName(“head”)[0];
var cssNode = document.createElement(‘link’);
cssNode.type = ‘text/css’;
cssNode.rel = ’stylesheet’;
cssNode.href = ‘FireFox.css’;
cssNode.media = ’screen’;
headID.appendChild(cssNode);

FOR JAVASCRIPT…
var headID = document.getElementsByTagName(“head”)[0];
var newScript = document.createElement(’script’);
newScript.type = ‘text/javascript’;
newScript.src = ‘http://www.somedomain.com/somescript.js’;
headID.appendChild(newScript);

<span style=”font-weight:bold;”>Send Mail Messages Using System.Net.Mail namespace (new in .net Framework Version 2.0) which provides classes that enable you to easily create and transmit e-mail messages.</span>

Asp.net c#:
// Create a MailMessage object
MailMessage mm = new MailMessage();

// Define the sender and recipient
mm.From = new MailAddress(fromEmailAddress.Text, fromDisplayName.Text);
mm.To.Add(new MailAddress(toEmailAddress.Text, toDisplayName.Text));

// Define the subject and body
mm.Subject = subjectTextBox.Text;
mm.Body = bodyTextBox.Text;
mm.IsBodyHtml = htmlRadioButton.Checked;

// Configure the mail server
SmtpClient sc = new SmtpClient(serverTextBox.Text);
sc.EnableSsl = sslCheckBox.Checked;
if (!String.IsNullOrEmpty(usernameTextBox.Text))
sc.Credentials = new NetworkCredential(usernameTextBox.Text, passwordTextBox.Text);

// Send the message
sc.Send(mm);
//DONE

<span style=”font-weight:bold;”>While coding with XML Files, Sometimes you need to Encode and Decode the Xml Name.
Here is the simplest method to encode the name XmlConvert.EncodeName(string).
</span>

using System.Xml;
namespace ConsoleApplication1
{
class classEncodeDecodeXMLName
{
static void encodedecode()
{
// Encode and decode a name with spaces.
Console.WriteLine(XmlConvert.ToByte(“Some Name”));
string name1 = XmlConvert.EncodeName(“Order Detail”);
Console.WriteLine(“Encoded name: ” + name1);
Console.WriteLine(“Decoded name: ” + XmlConvert.DecodeName(name1));

// Encode and decode a local name.
string name2 = XmlConvert.EncodeLocalName(“a:book”);
Console.WriteLine(“Encoded local name: ” + name2);
Console.WriteLine(“Decoded local name: ” + XmlConvert.DecodeName(name2));
}
public static void Main()
{
encodedecode();
}
}
}