public class Product
{
  [Required(ErrorMessage = "Number of Stock is Required")]
  [RegularExpression("^\\+?\\d+$", ErrorMessage = "Must be a Positive Non-decimal Number")]
  public int NumberOfStock{ get; set; }

  /******** Other Properties **************/
}

The way showed above will be good enough if you only have a few models or a small application. For a big project, you might want to create your own attribute instead of using expression. The advantage of dong this is easy to centralize (if you have many custom validations), and easy to debug.
First, we need to create custom attribute class:

[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
    public class PositiveIntegerAttribute : ValidationAttribute
    {
        public PositiveIntegerAttribute()
            : base("Must be a Positive Non-decimal Number")
        {
        }

        public override bool IsValid(object value)
        {
            if (value == null)
            {
                return true;
            }

            int num;
            if (int.TryParse(value.ToString(), out num))
            {

                if (num >= 0)
                    return true;
            }
            return false;
        }
    }

Then, we will create validation adapter to enable client side validation

		public class PositiveIntegerValidator : DataAnnotationsModelValidator
    {
        public PositiveIntegerValidator(ModelMetadata metadata, ControllerContext context, PositiveIntegerAttribute attribute)
            : base(metadata, context, attribute)
        {
        }

        public override IEnumerable GetClientValidationRules()
        {

            return new[] { new PositiveIntegerClientValidationRule(ErrorMessage) };
        }
    }

    public class PositiveIntegerClientValidationRule : ModelClientValidationRule
    {
        private const string Regex = @"^\+?\d+$";

        public PositiveIntegerClientValidationRule(string errorMessage)
        {
            ErrorMessage = errorMessage;
            ValidationType = "regex";
            ValidationParameters["pattern"] = Regex;
        }
    }

Last thing we need to do is register the adapter in “Application_Start” function of “Global.asax” file:

        protected void Application_Start()
        {
            /**********Other code************/

            DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(Library.PositiveIntegerAttribute), typeof(Library.PositiveIntegerValidator));
        }

Now, we can use the custom validation attribute “PositiveInteger” for the model “Prodcut”

public class Product
{
  [Required(ErrorMessage = "Number of Stock is Required")]
  [PositiveInteger]
  public int NumberOfStock{ get; set; }

  /******** Other Properties **************/
}

dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | xargs sudo apt-get -y purge

*Original post from here

/// <summary>
///
/// </summary>
/// <param name="para"></param>
/// <returns></returns>
public bool YourFunction(int para)
{
     //Code here
}

     After finish comments, enable “XML Documentation” option for your project:

1. Open project property
2. Go to “Build” tab
3. Check “Xml documentation file”
4. Build project, then check the XML comments in other project

1. Download the driver from Here
2. Unzip to somewhere. Let’s say “C:\”
3. Go to “Control Panel” -> “Device Manager”, look for this adapter. Normally it will be shown like “Unknown Network Controller” or something like that
4. Click this device, select “Update Driver Software”
5. Select “Browse My Computer for driver software”
6. Select “Let me pick from a list of device drivers on my computer”
7. Scroll down to “Network Adapters” and double click. Then click “Have Disk”
8. In the box that pops up, navigate to “C:\driver_folder”, and select the driver file
9. Scroll down to “Ralink Technology Corp” in the box on the left side. On the right side, select “802.11b/g Wireless Adapter.” (Here I have tried select “Linksys” on the left, and “Linksys Wireless Adapter” on the right. It also works! Just choose whatever you want)
10. Click YES on the warning window (if you see it)
11. Done! (Sometimes the device still might not be working, try to right click the device and uninstall the driver, but DO NOT check “Delete the driver software for this device”, and restart the computer. Then Windows will help you install the driver again)

DECLARE @name VARCHAR(50) -- database name
DECLARE @path VARCHAR(256) -- path for backup files
DECLARE @fileName VARCHAR(256) -- filename for backup
DECLARE @fileDate VARCHAR(20) -- used for file name 

SET @path = "C:\Backup"

SELECT @fileDate = CONVERT(VARCHAR(20),GETDATE(),112)

DECLARE db_cursor CURSOR FOR
SELECT name
FROM master.dbo.sysdatabases
WHERE name NOT IN ('master','model','msdb','tempdb')
--skip system database (optional)

OPEN db_cursor
FETCH NEXT FROM db_cursor INTO @name

WHILE @@FETCH_STATUS = 0
BEGIN
       SET @fileName = @path + @name + '_' + @fileDate + '.BAK'
       BACKUP DATABASE @name TO DISK = @fileName

       FETCH NEXT FROM db_cursor INTO @name
END

CLOSE db_cursor
DEALLOCATE db_cursor