Solved CS1591 in INavigationParamters[Internal].cs

src/Forms/Prism.Forms/Navigation/INavigationParameters.cs

@@ -2,20 +2,57 @@
 
 namespace Prism.Navigation
 {
+    /// <summary>
+    /// Provides a way for the INavigationService to pass parameteres during navigation.
+    /// </summary>
     public interface INavigationParameters : IEnumerable<KeyValuePair<string, object>>
     {
+        /// <summary>
+        /// Adds the key and value to the KeyValuePair<string,object> collection
+        /// </summary>
+        /// <param name="key">The key to reference this value in the KeyValuePair<string, object></param>
+        /// <param name="value">The value of the parameter to store</param>
         void Add(string key, object value);
 
+        /// <summary>
+        /// Checks collection for presense of key
+        /// </summary>
+        /// <param name="key">The key to check in the collection</param>
+        /// <returns><c>true</c> if key exists; else returns <c>false</c>.</returns>
         bool ContainsKey(string key);
 
+        /// <summary>
+        /// The count, or number, of parameters in collection
+        /// </summary>
         int Count { get; }
 
+        /// <summary>
+        /// Returns an IEnumerable of the Keys in the collection
+        /// </summary>
         IEnumerable<string> Keys { get; }
 
+        /// <summary>
+        /// Returns the value of the member referenced by key
+        /// </summary>
+        /// <typeparam name="T">The type of object to be returned</typeparam>
+        /// <param name="key">The key for the value to be returned</param>
+        /// <returns>Returns a matching parameter of <see cref="T" /> if one exists in the Collection</returns>
         T GetValue<T>(string key);
 
+        /// <summary>
+        /// Returns an IEnumerable of all parameters 
+        /// </summary>
+        /// <typeparam name="T">The type for the values to be returned</typeparam>
+        /// <param name="key">The key for the values to be returned</param>
+        ///<returns>Returns a IEnumberable of all the instances of type <see cref="T"/></returns>
         IEnumerable<T> GetValues<T>(string key);
 
+        /// <summary>
+        /// Checks to see if the parameter collection contains the value
+        /// </summary>
+        /// <typeparam name="T">The type for the values to be returned</typeparam>
+        /// <param name="key">The key for the value to be returned</param>
+        /// <param name="value">Value of the returned parameter if it exists</param>
         bool TryGetValue<T>(string key, out T value);
 
         //legacy

src/Forms/Prism.Forms/Navigation/INavigationParametersInternal.cs

@@ -1,11 +1,30 @@
 namespace Prism.Navigation
 {
+    /// <summary>
+    /// Internal - Provides a way for the INavigationService to pass parameteres during navigation.
+    /// </summary>
     public interface INavigationParametersInternal
     {
+        /// <summary>
+        /// Adds the key and value to the KeyValuePair<string,object> collection
+        /// </summary>
+        /// <param name="key">The key to reference this value in the KeyValuePair<string, object></param>
+        /// <param name="value">The value of the parameter to store</param>
         void Add(string key, object value);
 
+        /// <summary>
+        /// Checks collection for presense of key
+        /// </summary>
+        /// <param name="key">The key to check in the collection</param>
+        /// <returns><c>true</c> if key exists; else returns <c>false</c>.</returns>
         bool ContainsKey(string key);
 
+        /// <summary>
+        /// Returns the value of the member referenced by key
+        /// </summary>
+        /// <typeparam name="T">The type of object to be returned</typeparam>
+        /// <param name="key">The key for the value to be returned</param>
+        /// <returns>Returns a matching parameter of <see cref="T" /> if one exists in the Collection</returns>
         T GetValue<T>(string key);
     }
 }