Shoutdown/Logoff/Hibernate/Stand By - Use CODE to do 'em all

12. June 2009 17:32

C# Code Snippets 

Step 1: Add the following line to use the namespace. This is necessary as we need to use the User32.dll with DLLImport attribute.

using System.Runtime.InteropServices;

Step 2: Now add the below line to your code to use the methods from the User32.dll

[DllImport("user32.dll")]
public static extern void LockWorkStation();
[DllImport("user32.dll")]
public static extern int ExitWindowsEx(int uFlags, int dwReason);

Step 3: Once you complete the above two steps, you can now call the methods on button click or after some or with some particular event or the way you like.

LockWorkStation(); //Locks the workstation, Equivalent to WIN+L
ExitWindowsEx(0, 0)//Shutdowns the machine 
Application.SetSuspendState(PowerState.Suspend, true, true)  //Put the machine in stand-by mode
Application.SetSuspendState(PowerState.Hibernate, true, true); // Hibernates the system
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Convert ASCII values from hex to characters

30. May 2009 15:46

C# Code Snippets 

This C# code takes in a list of ASCII values (hexadecimal) and shows the actual characters behind, thus converting hex values to strings.

// An object storing the hex value
string HexValue = "4765656B7065646961";
// An object storing the string value
string StrValue = "";
// While there's still something to convert in the hex string
while (HexValue.Length > 0)
{
    // Use ToChar() to convert each ASCII value (two hex digits) to the actual character
    StrValue += Convert.ToChar(Convert.ToUInt32(HexValue.Substring(0, 2), 16)).ToString();
    // Remove from the hex object the converted value
    HexValue = HexValue.Substring(2, HexValue.Length - 2);
}
// Show the converted value
MessageBox.Show(StrValue); 
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Printing word documents without showing Print Dialog

29. May 2009 15:09

C# 

Just one Click! and documents queued to the printer. The code will provide you the full flexiblity to set the default printer and also to set other word document settings. I used the code to convert the word document to PDF using Adobe PDF printer driver, as I was unable to get the code to convert the word files to PDF using DLLs.Cool

 

Download the code and don't forget to look at the comments.

 

Download: docprntpdf.zip (645.83 kb)

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Populating, Restore and Backup SQL Database using C#

27. May 2009 15:01

C# 

You want to add a functionality in your C# application to allow user to select the database to restore and taking backups of the database. C# provides the classes to allow a programmer to achieve this in the application.

 

Before you go and implement this feature in your application, make sure you have added the references of the following namespaces:

1.) Microsoft.SqlServer.Smo

2.) Microsoft.SqlServer.ConnectionInfo

 

Click the below link to download the full application

 

Download: DBBackup.zip (290.99 kb)

 


Currently rated 4.0 by 1 person

Import CSV File Into SQL Server Using Bulk Insert

25. May 2009 15:51

T-SQL 

You have large data to import to SQL Server, and you have all the data in a CSV File (Comma Seperated Value file). Are you going to map the field one by one? 

OR just use a small function od SQL to import everything in the table. But before you proceed with this you need to map each column of CSV with the one with your table column. Look at the below quick example on how to use the BULK INSERT to import CSV file data into SQL Server.

Step 1: Create a CSV file.

Step 2: Create a table and map the fields accordingly: (Check below screenshot)

 

Here is the CODE:

BULK INSERT TestTable
FROM 'c:\TestData.csv'  -- Full path of the CSV file
WITH
(
FIELDTERMINATOR = ',', --CSV field delimiter
ROWTERMINATOR = '\n'   --Use to shift the control to next row
)

 

Currently rated 3.7 by 3 people