Remove "throwOnException" parameter on the extensions

Author: Suiram1701

WebUntisAPI.Client/Extensions/ColorExtensions.cs

@@ -28,18 +28,12 @@ public static string ToHexColorFormat(this Color color)
         /// </summary>
         /// <param name="color"></param>
         /// <param name="colorString">The string to convert</param>
-        /// <param name="throwOnException">Throw a exception on validation error. When not to throw on exception and an exception happened is the return value <see langword="null"/></param>
         /// <returns>The created color</returns>
         /// <exception cref="ArgumentException">Thrown when the <paramref name="colorString"/> isn't in the correct format</exception>
-        public static Color? FromHexColorFormat(this Color color, string colorString, bool throwOnException = true)
+        public static Color FromHexColorFormat(this Color color, string colorString)
         {
             if (!Regex.IsMatch(colorString, @"[\da-fA-F]{6}"))
-            {
-                if (!throwOnException)
-                    return null;
-
                 throw new ArgumentException("The color string isn't in a correct format", nameof(colorString));
-            }
 
             // Convert the hex string to the single color channels
             int red = Convert.ToByte(colorString.Substring(0, 2), 16);

WebUntisAPI.Client/Extensions/DateTimeExtensions.cs

@@ -42,10 +42,9 @@ public static void ToWebUntisTimeFormat(this DateTime dateTime, out string dateS
         /// <param name="dateTime">Instance</param>
         /// <param name="dateString">Date string</param>
         /// <param name="timeString">Time string</param>
-        /// <param name="throwOnException">Throw a exception on validation error</param>
         /// <returns>The new instance that contains the given time. When not to throw on exception and an exception happened is the return value <see langword="null"/></returns>
         /// <exception cref="FormatException">Thrown when one of the given strings isn't in the right format</exception>
-        public static DateTime? FromWebUntisTimeFormat(this DateTime dateTime, string dateString, string timeString, bool throwOnException = true)
+        public static DateTime FromWebUntisTimeFormat(this DateTime dateTime, string dateString, string timeString)
         {
             Regex dateRegex = new Regex(@"^\d{4}-(0\d|1[0-2])-(0[1-9]|[1-2]\d|3[0-1])$");     // Regex for the WebUntis date format
             Regex timeRegex = new Regex(@"^(\d|1\d|2[0-3])[0-5]\d$");     // Regex for the WebUntis time format
@@ -55,12 +54,7 @@ public static void ToWebUntisTimeFormat(this DateTime dateTime, out string dateS
             bool isTimeValid = timeRegex.IsMatch(timeString);
 
             if (!isDateValid || !isTimeValid)
-            {
-                if (!throwOnException)
-                    return null;
-
                 throw new FormatException($"The string {(isDateValid ? timeString : dateString)} isn't in the valid format!");
-            }
 
 
             // Parse the numbers in the string to value