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Why .NET 5.0 and not .NET Core 5.0? And, where is .NET (core) 4.0?
Note the point…
.NET 5.0 is the next major release of .NET Core following 3.1. We named this new release .NET 5.0 instead of .NET Core 4.0 for two reasons:
- We skipped version numbers 4.x to avoid confusion with .NET Framework 4.x.
- We dropped “Core” from the name to emphasize that this is the main implementation of .NET going forward. .NET 5.0 supports more types of apps and more platforms than .NET Core or .NET Framework.
ASP.NET Core 5.0 is based on .NET 5.0 but retains the name “Core” to avoid confusing it with ASP.NET MVC 5. Likewise, Entity Framework Core 5.0 retains the name “Core” to avoid confusing it with Entity Framework 5 and 6.
Ref: https://docs.microsoft.com/en-us/dotnet/core/dotnet-five
Strong Password Generator in C#
This code snippets will let you auto-generate strong passwords. Look for the password rules in the inline comments in code
001
using System;
002 using System.Collections.Generic;
003 using System.Linq;
004 using System.Security.Cryptography.X509Certificates;
005 using System.Text;
006 using System.Threading.Tasks;
007
008 namespace PwdGen
009 {
010 class Program
011 {
012 static void Main(string[] args)
013 {
014 //Console.WriteLine(GeneratePassword2(8, 15));
015 //Console.WriteLine(GeneratePassword(8, 15));
016 Console.ReadKey();
017 }
018
019 static string GeneratePassword2(int MinLength, int MaxLength)
020 {
021
022 string ValidChars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ:;<>|=.,_-~!?&%@#$£€°^*§()+[] ";
023 string SpecialChars = "!@#$%^&*()";
024
025 string pwd = string.Empty;
026
027 do
028 {
029 Random rnd = new Random(Guid.NewGuid().GetHashCode());
030 pwd = string.Join(string.Empty, Enumerable.Repeat(ValidChars, rnd.Next(MinLength, MaxLength + 1)).Select(s => s[rnd.Next(s.Length)]).ToArray());
031 Console.WriteLine(pwd);
032 } while (
033
034 Regex.Match(pwd, "[a-zA-Z]{3,}").Success || // Not more than 3 chars in sequence
035 Regex.Match(pwd, @"(\w)\1{2,}").Success || //Same number should not repeat more than 2 times
036 Regex.Match(pwd, "[1-9]{3,}").Success || // Not more than 3 numbers in sequence
037 !Regex.Match(pwd, "[A-Z]").Success || // At least one upper case char
038 !Regex.Match(pwd, "[a-z]").Success || // At least one lower case char
039 !Regex.Match(pwd, "[1-9]").Success || // At least one number
040 (pwd.ToArray().Where(l => SpecialChars.ToArray().Any(l2 => l2 == l)).Count() == 0) // At least one pre defined special char
041 );
042
043 return pwd;
044 }
045
046 static string GeneratePassword(int MinLength, int MaxLength)
047 {
048 string ValidChars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ:;<>|=.,_-~!?&%@#$£€°^*§()+[] ";
049 string SpecialChars = "!@#$%^&*()";
050
051 string pwd = string.Empty;
052
053 Random rnd = new Random(Guid.NewGuid().GetHashCode());
054
055 bool NumExist = false;
056 bool IsUpper = false;
057 bool IsLower = false;
058 bool IsSplChr = false;
059 bool NoRepeat = true;
060 bool NoSeq = true;
061
062 while ((!NumExist || !IsUpper || !IsLower || !IsSplChr) && (NoRepeat || NoSeq) )
063 {
064 NumExist = false;
065 IsUpper = false;
066 IsLower = false;
067 IsSplChr = false;
068 NoRepeat = true;
069 NoSeq = true;
070
071 pwd = string.Join(string.Empty, Enumerable.Repeat(ValidChars, rnd.Next(MinLength, MaxLength + 1)).Select(s => s[rnd.Next(s.Length)]).ToArray());
072 for (int i = 0; i < pwd.Length; i++)
073 {
074 // Contains at least 1 lower case letter and 1 upper case letter (all UTF-8), at least 1 number
075
076 if (!NumExist)
077 {
078 NumExist = (char.IsDigit(pwd[i]) && true);
079 }
080 if (!IsUpper)
081 {
082 IsUpper = (char.IsUpper(pwd[i]) && true);
083 }
084 if (!IsLower)
085 {
086 IsLower = (char.IsLower(pwd[i]) && true);
087 }
088
089 // A predefined set of special chars must be present
090 if (!IsSplChr)
091 {
092 IsSplChr = (SpecialChars.IndexOf(pwd[i]) >= 0);
093 }
094
095
096 // Not more than 2 identical characters in a row (e.g., 111 not allowed)
097 if (i < pwd.Length - 2 && NoRepeat)
098 {
099 NoRepeat = !((pwd[i] == pwd[i + 1]) && (pwd[i] == pwd[i + 2]));
100 }
101
102 // Not any sequence of the English alphabet / numbers (above 3 letters)
103 if (i < pwd.Length - 2 && NoSeq)
104 {
105 NoSeq = !((pwd[i + 2] - pwd[i + 1]) == (pwd[i + 1] - pwd[i]));
106 }
107 Console.WriteLine(!NumExist +" "+ !IsUpper + " " + !IsLower + " " + !IsSplChr + " " + NoRepeat +NoSeq);
108 }
109
110 }
111
112 return pwd;
113
114 }
115 }
116 }
117
View in GitHub | Made with wp-showgithubfile plugin
002 using System.Collections.Generic;
003 using System.Linq;
004 using System.Security.Cryptography.X509Certificates;
005 using System.Text;
006 using System.Threading.Tasks;
007
008 namespace PwdGen
009 {
010 class Program
011 {
012 static void Main(string[] args)
013 {
014 //Console.WriteLine(GeneratePassword2(8, 15));
015 //Console.WriteLine(GeneratePassword(8, 15));
016 Console.ReadKey();
017 }
018
019 static string GeneratePassword2(int MinLength, int MaxLength)
020 {
021
022 string ValidChars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ:;<>|=.,_-~!?&%@#$£€°^*§()+[] ";
023 string SpecialChars = "!@#$%^&*()";
024
025 string pwd = string.Empty;
026
027 do
028 {
029 Random rnd = new Random(Guid.NewGuid().GetHashCode());
030 pwd = string.Join(string.Empty, Enumerable.Repeat(ValidChars, rnd.Next(MinLength, MaxLength + 1)).Select(s => s[rnd.Next(s.Length)]).ToArray());
031 Console.WriteLine(pwd);
032 } while (
033
034 Regex.Match(pwd, "[a-zA-Z]{3,}").Success || // Not more than 3 chars in sequence
035 Regex.Match(pwd, @"(\w)\1{2,}").Success || //Same number should not repeat more than 2 times
036 Regex.Match(pwd, "[1-9]{3,}").Success || // Not more than 3 numbers in sequence
037 !Regex.Match(pwd, "[A-Z]").Success || // At least one upper case char
038 !Regex.Match(pwd, "[a-z]").Success || // At least one lower case char
039 !Regex.Match(pwd, "[1-9]").Success || // At least one number
040 (pwd.ToArray().Where(l => SpecialChars.ToArray().Any(l2 => l2 == l)).Count() == 0) // At least one pre defined special char
041 );
042
043 return pwd;
044 }
045
046 static string GeneratePassword(int MinLength, int MaxLength)
047 {
048 string ValidChars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ:;<>|=.,_-~!?&%@#$£€°^*§()+[] ";
049 string SpecialChars = "!@#$%^&*()";
050
051 string pwd = string.Empty;
052
053 Random rnd = new Random(Guid.NewGuid().GetHashCode());
054
055 bool NumExist = false;
056 bool IsUpper = false;
057 bool IsLower = false;
058 bool IsSplChr = false;
059 bool NoRepeat = true;
060 bool NoSeq = true;
061
062 while ((!NumExist || !IsUpper || !IsLower || !IsSplChr) && (NoRepeat || NoSeq) )
063 {
064 NumExist = false;
065 IsUpper = false;
066 IsLower = false;
067 IsSplChr = false;
068 NoRepeat = true;
069 NoSeq = true;
070
071 pwd = string.Join(string.Empty, Enumerable.Repeat(ValidChars, rnd.Next(MinLength, MaxLength + 1)).Select(s => s[rnd.Next(s.Length)]).ToArray());
072 for (int i = 0; i < pwd.Length; i++)
073 {
074 // Contains at least 1 lower case letter and 1 upper case letter (all UTF-8), at least 1 number
075
076 if (!NumExist)
077 {
078 NumExist = (char.IsDigit(pwd[i]) && true);
079 }
080 if (!IsUpper)
081 {
082 IsUpper = (char.IsUpper(pwd[i]) && true);
083 }
084 if (!IsLower)
085 {
086 IsLower = (char.IsLower(pwd[i]) && true);
087 }
088
089 // A predefined set of special chars must be present
090 if (!IsSplChr)
091 {
092 IsSplChr = (SpecialChars.IndexOf(pwd[i]) >= 0);
093 }
094
095
096 // Not more than 2 identical characters in a row (e.g., 111 not allowed)
097 if (i < pwd.Length - 2 && NoRepeat)
098 {
099 NoRepeat = !((pwd[i] == pwd[i + 1]) && (pwd[i] == pwd[i + 2]));
100 }
101
102 // Not any sequence of the English alphabet / numbers (above 3 letters)
103 if (i < pwd.Length - 2 && NoSeq)
104 {
105 NoSeq = !((pwd[i + 2] - pwd[i + 1]) == (pwd[i + 1] - pwd[i]));
106 }
107 Console.WriteLine(!NumExist +" "+ !IsUpper + " " + !IsLower + " " + !IsSplChr + " " + NoRepeat +NoSeq);
108 }
109
110 }
111
112 return pwd;
113
114 }
115 }
116 }
117
Join two XML files using XSL Transformation
This blog demonstrates how you can JOIN (yes, like in SQL) two xml (datasets) to one using a common ID (relationship).
shop.xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type='text/xsl' href='main.xsl'?>
<shop>
<product>
<id>100</id>
<title>hello</title>
</product>
<product>
<id>101</id>
<title>world</title>
</product>
<product>
<id>102</id>
<title>praveen</title>
</product>
</shop>
price.xml
<?xml version="1.0" encoding="UTF-8"?>
<shop>
<product>
<id>100</id>
<price>10.0</price>
</product>
<product>
<id>101</id>
<price>10.1</price>
</product>
<product>
<id>102</id>
<price>10.2</price>
</product>
<product>
<id>103</id>
<price>10.3</price>
</product>
</shop>
main.xsl
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes" />
<xsl:param name="fileName" select="'price.xml'" />
<xsl:variable name="updateItems" select="document($fileName)/shop/product" />
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()" />
<xsl:copy-of select="$updateItems[id=current()/id]/price" />
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
Resulting XML, after transformation should look like:
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type='text/xsl' href='main.xsl'?>
<shop>
<product>
<id>100</id>
<title>hello</title>
<price>10.0</price>
</product>
<product>
<id>101</id>
<title>world</title>
<price>10.1</price>
</product>
<product>
<id>102</id>
<title>praveen</title>
<price>10.2</price>
</product>
</shop>
Bonus code, if some .net developers want a transformation code:
XslTransform xslt = new XslTransform();
xslt.Load(@"D:\Websites\xmltest\main.xsl");
xslt.Transform(@"D:\Websites\xmltest\shop.xml", @"D:\Websites\xmltest\out.xml");
textBox1.Text = System.IO.File.ReadAllText(@"D:\Websites\xmltest\out.xml");
Send an Office365 SMTP mail in .NET/C#
Sending a mail using Office365 is no big deal. It is just similar to how you send a mail via any SMTP server. But you will have to mind the SMTP host, port number and remember to enable SSL in the code. Here goes the code snippet:
using (MailMessage message = new MailMessage())
{
message.From = new MailAddress("praveen@YourO365Domain.com");
message.To.Add("praveen@yourmail.com");
message.Subject = "test mail";
message.Body = "<h1>test</h1>";
message.IsBodyHtml = true;
SmtpClient client = new SmtpClient("outlook.office365.com", 587);
client.Credentials = new NetworkCredential("praveen@YourO365Domain.com", "passwordhere");
client.EnableSsl = true;
client.Send(message);
}