Add comments and remove default values in the contructor

src/Microsoft.AspNetCore.Mvc.ViewFeatures/Rendering/SelectListItem.cs

@@ -10,14 +10,35 @@ namespace Microsoft.AspNetCore.Mvc.Rendering
     /// </summary>
     public class SelectListItem
     {
+        /// <summary>
+        /// Initializes a new instance of <see cref="SelectListItem"/>.
+        /// </summary>
         public SelectListItem() { }
 
-        public SelectListItem(string text, string value, bool selected = false, bool disabled = false)
+        /// <summary>
+        /// Initializes a new instance of <see cref="SelectListItem"/>.
+        /// </summary>
+        /// <param name="text">The display text of this <see cref="SelectListItem"/>.</param>
+        /// <param name="value">The value of this <see cref="SelectListItem"/>.</param>
+        public SelectListItem(string text, string value)
+            : this()
+        {
+            Text = text;
+            Value = value;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of <see cref="SelectListItem"/>.
+        /// </summary>
+        /// <param name="text">The display text of this <see cref="SelectListItem"/>.</param>
+        /// <param name="value">The value of this <see cref="SelectListItem"/>.</param>
+        /// <param name="selected">Value that indicates whether this <see cref="SelectListItem"/> is selected.</param>
+        /// <param name="disabled">Value that indicates whether this <see cref="SelectListItem"/> is disabled.</param>
+        public SelectListItem(string text, string value, bool selected, bool disabled)
+            : this(text, value)
         {
             Disabled = disabled;
             Selected = selected;
-            Text = text;
-            Value = value;
         }
 
         /// <summary>