HeaderCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Net / System / Net / Mail / HeaderCollection.cs / 1305376 / HeaderCollection.cs
                        

                        
                            using System; 
using System.Collections.Specialized;
using System.Net.Mail;
using System.Globalization;
 
namespace System.Net.Mime
{ 
    ///  
    /// Summary description for HeaderCollection.
    ///  


    internal class HeaderCollection: NameValueCollection {
        MimeBasePart part = null; 

 
        // default constructor 
        // intentionally override the default comparer in the derived base class
        internal HeaderCollection() : base(StringComparer.OrdinalIgnoreCase) { 
        }


        public override void Remove(string name) { 
            if(Logging.On)Logging.PrintInfo(Logging.Web, this, "Remove", name);
            if (name == null) 
                throw new ArgumentNullException("name"); 

            if (name == string.Empty) 
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"name"), "name");

            MailHeaderID id = MailHeaderInfo.GetID(name);
 
            if (id == MailHeaderID.ContentType && part != null) {
                part.ContentType = null; 
            } else if (id == MailHeaderID.ContentDisposition && part is MimePart) { 
                ((MimePart)part).ContentDisposition = null;
            } 

            base.Remove(name);
        }
 

        public override string Get(string name) { 
            if(Logging.On)Logging.PrintInfo(Logging.Web, this, "Get", name); 
            if (name == null)
                throw new ArgumentNullException("name"); 

            if (name == string.Empty)
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"name"), "name");
 
            MailHeaderID id = MailHeaderInfo.GetID(name);
 
            if (id == MailHeaderID.ContentType && part != null) { 
                part.ContentType.PersistIfNeeded(this,false);
            } else if (id == MailHeaderID.ContentDisposition && part is MimePart) { 
                ((MimePart)part).ContentDisposition.PersistIfNeeded(this, false);
            }
            return base.Get(name);
        } 

 
 
        public override string[] GetValues(string name) {
            if(Logging.On)Logging.PrintInfo(Logging.Web, this, "Get", name); 
            if (name == null)
                throw new ArgumentNullException("name");

            if (name == string.Empty) 
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"name"), "name");
 
            MailHeaderID id = MailHeaderInfo.GetID(name); 

            if (id == MailHeaderID.ContentType && part != null) { 
                part.ContentType.PersistIfNeeded(this,false);
            } else if (id == MailHeaderID.ContentDisposition && part is MimePart) {
                ((MimePart)part).ContentDisposition.PersistIfNeeded(this, false);
            } 
            return base.GetValues(name);
        } 
 

        internal void InternalRemove(string name){ 
            base.Remove(name);
        }

        //set an existing header's value 
        internal void InternalSet(string name, string value) {
            base.Set(name, value); 
        } 

        //add a new header and set its value 
        internal void InternalAdd(string name, string value) {
            if (MailHeaderInfo.IsSingleton(name)) {
                base.Set(name, value);
            } 
            else {
                base.Add(name, value); 
            } 
        }
 
        public override void Set(string name, string value) {
            if(Logging.On)Logging.PrintInfo(Logging.Web, this, "Set", name.ToString() + "=" + value.ToString());
            if (name == null)
                throw new ArgumentNullException("name"); 

            if (value == null) 
                throw new ArgumentNullException("value"); 

            if (name == string.Empty) 
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"name"), "name");

            if (value == string.Empty)
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"value"), "name"); 

            if (!MimeBasePart.IsAscii(name,false)) { 
                throw new FormatException(SR.GetString(SR.InvalidHeaderName)); 
            }
 
            // normalize the case of well known headers
            name = MailHeaderInfo.NormalizeCase(name);

            MailHeaderID id = MailHeaderInfo.GetID(name); 

            if (id == MailHeaderID.ContentType && part != null) { 
                part.ContentType.Set(value.ToLower(CultureInfo.InvariantCulture), this); 
            } else if (id == MailHeaderID.ContentDisposition && part is MimePart) {
                ((MimePart)part).ContentDisposition.Set(value.ToLower(CultureInfo.InvariantCulture), this); 
            } else {
                base.Set(name, value);
            }
        } 

 
        public override void Add(string name, string value) { 
            if(Logging.On)Logging.PrintInfo(Logging.Web, this, "Add", name.ToString() + "=" + value.ToString());
            if (name == null) 
                throw new ArgumentNullException("name");

            if (value == null)
                throw new ArgumentNullException("value"); 

            if (name == string.Empty) 
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"name"), "name"); 

            if (value == string.Empty) 
                throw new ArgumentException(SR.GetString(SR.net_emptystringcall,"value"), "name");

            MailBnfHelper.ValidateHeaderName(name);
 
            // normalize the case of well known headers
            name = MailHeaderInfo.NormalizeCase(name); 
 
            MailHeaderID id = MailHeaderInfo.GetID(name);
 
            if(id == MailHeaderID.ContentType && part != null) {
                part.ContentType.Set(value.ToLower(CultureInfo.InvariantCulture), this);
            } else if (id == MailHeaderID.ContentDisposition && part is MimePart) {
                ((MimePart)part).ContentDisposition.Set(value.ToLower(CultureInfo.InvariantCulture), this); 
            } else {
                InternalAdd(name, value); 
            } 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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