如何解决字典设置器问题

Question

I have created a dictionary. But during Build it gives me error:

Change 'INotificationMessage.AlertMessageList ' to be read-only by removing the property setter

public interface INotificationMessage
    {
        /// <summary>
        /// Gets or sets the notification message list.
        /// </summary>
        /// <value>
        /// The notification message list.
        /// </value>
        Dictionary<string, string> AlertMessageList { get; set; }
    }

Can please ayone assist me to fix this issue.

Answer 1

Generally you shouldn't have a public set for collections as this allows the list to be replaced. Just use:

Dictionary<string, string> AlertMessageList { get; }

To fix it you can add method for set that collection or use:

Dictionary<string, string> AlertMessageList { get; private set; }

See Collection properties should be read only