Guid in C#

To create a new Guid value in C#, you can simply call the Guid.NewGuid() method:

Guid newGuid = Guid.NewGuid();

To create a base64 encoded string from a Guid that can be used in a URL, you can use the following code:

Guid myGuid = Guid.NewGuid();
string base64Guid = Convert.ToBase64String(myGuid.ToByteArray())
                                .Substring(0, 22)
                                .Replace("/", "_")
                                .Replace("+", "-");

To validate a string as a Guid, you can use the Guid.TryParse method:

string input = "0a7b0f91-ec60-482f-9f21-0c33d8d23dd4";
if (Guid.TryParse(input, out Guid result))
{
    Console.WriteLine("Valid Guid: " + result);
}
else
{
    Console.WriteLine("Invalid Guid: " + input);
}

To convert an int to a Guid, you can convert the int to a byte array and use it to create a new Guid:

int myInt = 12345;
byte[] bytes = BitConverter.GetBytes(myInt);
Guid myGuid = new Guid(bytes);

Generate GUID in C#:
- Introduction to creating a new GUID in C#.
- Code snippet:
```
Guid newGuid = Guid.NewGuid();
```
C# GUID format:
- Describing the format of GUIDs in C#.
- Code snippet: (GUID format representation)
```
Guid newGuid = Guid.NewGuid();
Console.WriteLine(newGuid.ToString("D"));
```

GUID parsing in C#:

How to parse a string into a GUID.

Code snippet:

string guidString = "4E2428E5-8F28-4B0C-A399-8E4D4A6BFA16";
Guid parsedGuid = Guid.Parse(guidString);

CombGuid in C#:
- Explanation and usage of CombGuid for ordered GUIDs.
- Code snippet: (using CombGuid library)
```
CombGuid newCombGuid = CombGuid.NewComb();
```
GUID to string conversion in C#:
- Demonstrating how to convert a GUID to a string.
- Code snippet:
```
Guid myGuid = Guid.NewGuid();
string guidString = myGuid.ToString();
```
GUID class in C#:
- Overview of the Guid class in C# and its methods.
- Code snippet: (creating a GUID)
```
Guid newGuid = Guid.NewGuid();
```
GUID.NewGuid() in C#:
- Description and usage of the Guid.NewGuid() method for generating GUIDs.
- Code snippet: (creating a new GUID)
```
Guid newGuid = Guid.NewGuid();
```

Comparing GUIDs in C#:

Illustration of how to compare two GUIDs in C#.

Code snippet:

Guid guid1 = Guid.NewGuid();
Guid guid2 = Guid.NewGuid();
if (guid1 == guid2)
{
    // Equal
}

C# GUID to byte array:
- How to convert a GUID to a byte array and vice versa.
- Code snippet:
```
Guid myGuid = Guid.NewGuid();
byte[] guidBytes = myGuid.ToByteArray();
```
Guid.NewGuid() vs Guid.NewGuid().ToString() in C#:
- Comparing the differences between directly using a GUID and converting it to a string.
- Code snippet: (highlighting the difference)
```
Guid newGuid = Guid.NewGuid();
string guidString = newGuid.ToString();
```