1 files changed, 27 insertions, 0 deletions
diff --git a/Timeline/Services/UsernameBadFormatException.cs b/Timeline/Services/UsernameBadFormatException.cs
new file mode 100644
index 00000000..04354d22
--- /dev/null
+++ b/Timeline/Services/UsernameBadFormatException.cs
@@ -0,0 +1,27 @@
+using System;
+
+namespace Timeline.Services
+{
+    /// <summary>
+    /// Thrown when username is of bad format.
+    /// </summary>
+    [Serializable]
+    public class UsernameBadFormatException : Exception
+    {
+        public UsernameBadFormatException() : base(Resources.Services.Exception.UsernameBadFormatException) { }
+        public UsernameBadFormatException(string message) : base(message) { }
+        public UsernameBadFormatException(string message, Exception inner) : base(message, inner) { }
+
+        public UsernameBadFormatException(string username, string message) : base(message) { Username = username; }
+        public UsernameBadFormatException(string username, string message, Exception inner) : base(message, inner) { Username = username; }
+
+        protected UsernameBadFormatException(
+          System.Runtime.Serialization.SerializationInfo info,
+          System.Runtime.Serialization.StreamingContext context) : base(info, context) { }
+
+        /// <summary>
+        /// Username of bad format.
+        /// </summary>
+        public string? Username { get; private set; }
+    }
+}