/// <summary>
/// Add a mime param header.
/// </summary>
/// <param name="header">The header to add.</param>
/// <returns>The newly added header.</returns>
public MimeHeaderParam Add(MimeHeaderParam header)
{
if (_headers.Contains(header.Name)) {
var err = new MimeException(string.Format(Messages.MimeHeaderParamCollection_Add_HeaderParamWithNameExists, header));
logger.Error(err);
throw err;
}
_listHeaders.Add(header);
_headers.Add(header.Name, header);
return header;
}
/// <summary>
/// Add a mime param header at a specific position.
/// </summary>
/// <param name="index">the zero-based position to add.</param>
/// <param name="header">The header to add.</param>
/// <returns>The newly added header.</returns>
public MimeHeaderParam AddAt(int index, MimeHeaderParam header)
{
if (_headers.Contains(header.Name)) {
var err = new MimeException(string.Format(Messages.MimeHeaderParamCollection_Add_HeaderParamWithNameExists, header));
logger.Error(err);
throw err;
}
if (index < 0) {
var err = new MimeException(string.Format(Messages.MimeHeaderParamCollection_AddAt_InvalidPositionForMiimeHeader, index));
logger.Error(err);
throw err;
}
if (index >= _listHeaders.Count)
{
return Add(header);
}
//Copy the last item
_listHeaders.Add((MimeHeaderParam)_listHeaders[_listHeaders.Count - 1]);
//Move other items
if (_listHeaders.Count > 2 && index <= _listHeaders.Count - 2)
{
for(int i = _listHeaders.Count - 2; i >= index; i--)
{
_listHeaders[i + 1] = (MimeHeaderParam)_listHeaders[i];
}
}
//Save this item at the specific index
_listHeaders[index] = header;
_headers.Add(header.Name, header);
return header;
}
