Saturday, 25 May 2013

C# TextBox Numeric Value with one decimal point


private void txtBasicSal_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar)&& e.KeyChar != '.')
            {
                e.Handled = true;
            }

            // only allow one decimal point
            if (e.KeyChar == '.'&& (sender as TextBox).Text.IndexOf('.') > -1)
            {
                e.Handled = true;
            }
        }

SQL Server Database BackUp using C#


SQL Server Database BackUp using C#

There are various ways to take the SQL Server database backup. You can take the database backup using SQL Server backup wizard or using SQL Server BackUp Database statement. Here I am going to describe how to take the SQL Server database backup programatically using C# and SQL Server Management Objects (SMO).

In my previous posts, I explained Partial Methods,Contextual Keyword, C# Static Methods and some other articles related to C#, ASP.Net and SQL Server .

SQL Server Management Objects (SMO) is a collection of objects that are designed for programming all aspects of managing Microsoft SQL Server.


For taking the database backup using C#, you have to add the following references in your application-

Microsoft.SqlServer.ConnectionInfo
Microsoft.SqlServer.Management.Sdk.Sfc
Microsoft.SqlServer.Smo
Microsoft.SqlServer.SmoExtended
Microsoft.SqlServer.SqlEnum

In your .CS file you will have to use the following namespaces-

using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Management.Common;

After using above namespaces, write the following code to take the database backup-

public void BackupDatabase(string databaseName, string userName, string password, string serverName, string destinationPath)
{
//Define a Backup object variable.
Backup sqlBackup = new Backup();

//Specify the type of backup, the description, the name, and the database to be backed up.
sqlBackup.Action = BackupActionType.Database;
sqlBackup.BackupSetDescription = "BackUp of:" + databaseName + "on" + DateTime.Now.ToShortDateString();
sqlBackup.BackupSetName = "FullBackUp";
sqlBackup.Database = databaseName;

//Declare a BackupDeviceItem
BackupDeviceItem deviceItem = new BackupDeviceItem(destinationPath + "FullBackUp.bak", DeviceType.File);
//Define Server connection
ServerConnection connection = new ServerConnection(serverName, userName, password);
//To Avoid TimeOut Exception
Server sqlServer = new Server(connection);
sqlServer.ConnectionContext.StatementTimeout = 60 * 60;
Database db = sqlServer.Databases[databaseName];

sqlBackup.Initialize = true;
sqlBackup.Checksum = true;
sqlBackup.ContinueAfterError = true;

//Add the device to the Backup object.
sqlBackup.Devices.Add(deviceItem);
//Set the Incremental property to False to specify that this is a full database backup.
sqlBackup.Incremental = false;

sqlBackup.ExpirationDate = DateTime.Now.AddDays(3);
//Specify that the log must be truncated after the backup is complete.
sqlBackup.LogTruncation = BackupTruncateLogType.Truncate;

sqlBackup.FormatMedia = false;
//Run SqlBackup to perform the full database backup on the instance of SQL Server.
sqlBackup.SqlBackup(sqlServer);
//Remove the backup device from the Backup object.
sqlBackup.Devices.Remove(deviceItem);
}
Mahesh arya,