This is a collection of common extensions for various data types and classes in C#.

• String Extensions
• DateTime Extensions
• Double Extensions
• Object Extensions
• Type Extensions
• Array Extensions
• Stream Extensions
• Dictionary Extensions
• IEnumerable Extensions
• String Manipulation Extensions
• Type Checking Extensions
• Other Extensions
• Boolean Extensions
• Numeric Extensions
• DateTime Extensions
• Type Extensions
• String Extensions
• Guid Extensions
• String Manipulation Extensions
• Process Extensions
• Exception Extensions
• Encoding Extensions
• Xml Extensions
• IDisposable Extensions
• Other Extensions

• Assigned(): Checks if the string is not null or empty.
• NotAssigned(): Checks if the string is null or empty.
• RegexReplace(string pattern, string replacement): Performs a regular expression replacement on the string.

• Assigned(): Checks if the DateTime object is assigned (greater than DateTime.MinValue).
• NotAssigned(): Checks if the DateTime object is not assigned (equal to DateTime.MinValue).
• OnlyDate(): Returns a new DateTime object with the time portion set to midnight.

• Assigned(): Checks if the double value is not NaN.
• NotAssigned(): Checks if the double value is NaN.
• ToVal(): Converts a nullable double value to a double, returning the default value if null.

• Assigned(): Checks if the object is not null or DBNull.
• NotAssigned(): Checks if the object is null or DBNull.
• RootNamespace(): Retrieves the root namespace of the assembly containing the object.

• ToType(): Returns the underlying type of a nullable type, or the original type if not nullable.
• IsBaseType(Type parent, Type child): Checks if the child type is a derived type of the parent type.

• ValidArray(): Checks if the array is assigned and has a length greater than zero.

• StreamToByteArray(): Converts a stream to a byte array.
• ToMemoryStream(): Creates a new memory stream from a byte array.
• StreamToStr(): Converts the contents of a memory stream to a base64-encoded string.
• StrToStream(): Initializes a memory stream from a base64-encoded string.
• Clone<T>(Stream input): Creates a binary copy of a stream.

• Value<TKey, TValue>(IDictionary<TKey, TValue> list, TKey key): Gets the value associated with the specified key.

• ToNewList<T>(this IList list): Creates a new List from an IList object.
• ToNewList<T>(this IEnumerator enumerator): Creates a new List from an IEnumerator object.
• ToNewList(this IEnumerator enumerator): Creates a new ArrayList from an IEnumerator object.

• IncrementLastChar(): Increments the last character of a string.
• AsciiEncodeToBase64(): Encodes a string to a base64-encoded ASCII string.
• AsciiDecodeFromBase64(): Decodes a base64-encoded ASCII string to a string.
• ReverseString(): Reverses the characters in a string.

• IsAlphaNumeric(): Checks if a type is a char or string.
• `IsPrimitiveNumericOrString.

• IsBoolean(this Type dataType): Checks if the type is a boolean type.

• IsNumeric(this Type dataType): Checks if the type is a numeric type.
• IsFloating(this Type dataType): Checks if the type is a floating-point numeric type.

• IsDateTime(this Type dataType): Checks if the type is DateTime.
• CropMilliSeconds(this DateTime source): Truncates the milliseconds part of a DateTime object.
• CropMilliSeconds(this DateTimeOffset source): Truncates the milliseconds part of a DateTimeOffset object.
• CropSeconds(this DateTime source): Truncates the seconds and milliseconds part of a DateTime object.
• CropSeconds(this DateTimeOffset source): Truncates the seconds and milliseconds part of a DateTimeOffset object.
• CropMinutes(this DateTime source): Truncates the minutes, seconds, and milliseconds part of a DateTime object.
• CropMinutes(this DateTimeOffset source): Truncates the minutes, seconds, and milliseconds part of a DateTimeOffset object.

• IsInterfaceSupported(this Type srcType, Type intfType): Checks if the source type implements a specific interface.

• ReverseString(this string str): Reverses the characters in a string.
• ReturnAbsolutePath(this string app): Returns the absolute path of a URL, without the last slash if the app is a URL.
• ValidateEmail(this string email): Validates if a string is a valid email address.

• ToGUID(this string guidStr): Converts a string to a GUID.

• No methods provided.

• GetCurrentProcessID(): Gets the ID of the current process.
• GetCurrentProcessIdentityName(): Gets the name of the current process's identity.
• GetCurrentProcessName(): Gets the name of the current process.
• GetMachineName(): Gets the name of the current machine.
• GetMachineDomainName(): Gets the domain name of the current machine.
• GetHostIPv4Address(string hostName = ""): Gets the IPv4 address of a given hostname.
• TryGetProcess(int pid, out Process process): Tries to get a process with the specified ID.
• ProcessIsRunning(int pid): Checks if a process with the specified ID is running.
• GetRunningProcess(int pid): Gets a running process with the specified ID.
• ProcessHasExited(Process process, Boolean throwUnknownEx = false): Checks if a process has exited.

• ActualExceptionIs(this Exception ex, Type comparedException): Checks if the actual exception type or any of its inner exceptions match the specified type.
• ActualExceptionIs<T>(this Exception ex) where T : Exception: Checks if the actual exception type or any of its inner exceptions match the specified type.

• Base64Encode(this string plainText): Encodes a string to Base64.
• Base64Decode(this string base64EncodedData, bool ifNotBase64StrReturnEncodedData = false): Decodes a Base64 encoded string.

• ReadXmlValue<T>(this XmlDocument doc, string key, T defaultValue = default(T)): Reads a value from an XML document based on the provided key.

• DisposeAndNull(this IDisposable o): Disposes an object and sets it to null.

• ParseGuidList(string data): Parses a string and returns a list of Guids.