/// <summary>
/// 获得预览信息
/// </summary>
/// <param name="fileName">文件物理路径</param>
/// <param name="attachment">附件对象</param>
/// <returns>预览信息的HTML</returns>
public string GetPreview(string fileName, ShowtopicPageAttachmentInfo attachment)
{
if (!PreviewHelper.IsFileExist(fileName))
return "";
string id = Guid.NewGuid().ToString();
EXIFextractor exif = new EXIFextractor(fileName, string.Empty, string.Empty);
if (exif.Count < 1)
{
return string.Empty;
}
StringBuilder builder = new StringBuilder();
foreach (System.Web.UI.Pair s in exif)
{
if (s.Second.ToString().Trim() == "-" || s.Second.ToString().Trim() == string.Empty || s.Second.ToString().Trim() == "0")
continue;
builder.Append("<li>");
builder.Append(s.First.ToString().Trim() + " : " + s.Second.ToString().Replace("\0", string.Empty).Trim());
builder.Append("</li>");
}
if (builder.Length == 0)
{
return string.Empty;
}
builder.Append("</ul></div>");
builder.Insert(0, string.Format("<span><a onclick=\"$('{0}').style.display=$('{0}').style.display=='none'?'':'none';\" style='cursor:pointer;' title='点击显示或隐藏'>EXIF信息</a></span><div class=\"preview{1}\"><ul id=\"{0}\" style='display: none;'>", id, "jpg"));
return builder.ToString();
}
/// <summary>
/// Copies the elements of the specified <see cref="ShowtopicPageAttachmentInfo">ShowtopicPageAttachmentInfo</see> array to the end of the collection.
/// </summary>
/// <param name="value">An array of type <see cref="ShowtopicPageAttachmentInfo">ShowtopicPageAttachmentInfo</see> containing the Components to add to the collection.</param>
public void AddRange(ShowtopicPageAttachmentInfo[] value)
{
for (int i = 0; (i < value.Length); i = (i + 1))
{
this.Add(value[i]);
}
}
/// <summary>
/// Gets a value indicating whether the collection contains the specified <see cref="ShowtopicPageAttachmentInfoCollection">ShowtopicPageAttachmentInfoCollection</see>.
/// </summary>
/// <param name="value">The <see cref="ShowtopicPageAttachmentInfoCollection">ShowtopicPageAttachmentInfoCollection</see> to search for in the collection.</param>
/// <returns><b>true</b> if the collection contains the specified object; otherwise, <b>false</b>.</returns>
public bool Contains(ShowtopicPageAttachmentInfo value)
{
return this.List.Contains(value);
}
public int Add(ShowtopicPageAttachmentInfo value)
{
return this.List.Add(value);
}
/// <summary>
/// Initializes a new instance of the <see cref="ShowtopicPageAttachmentInfoCollection">ShowtopicPageAttachmentInfoCollection</see> class containing the specified array of <see cref="ShowtopicPageAttachmentInfo">ShowtopicPageAttachmentInfo</see> Components.
/// </summary>
/// <param name="value">An array of <see cref="ShowtopicPageAttachmentInfo">ShowtopicPageAttachmentInfo</see> Components with which to initialize the collection. </param>
public ShowtopicPageAttachmentInfoCollection(ShowtopicPageAttachmentInfo[] value)
{
this.AddRange(value);
}
public void Remove(ShowtopicPageAttachmentInfo value)
{
List.Remove(value);
}
public void Insert(int index, ShowtopicPageAttachmentInfo value)
{
List.Insert(index, value);
}
/// <summary>
/// Gets the index in the collection of the specified <see cref="ShowtopicPageAttachmentInfoCollection">ShowtopicPageAttachmentInfoCollection</see>, if it exists in the collection.
/// </summary>
/// <param name="value">The <see cref="ShowtopicPageAttachmentInfoCollection">ShowtopicPageAttachmentInfoCollection</see> to locate in the collection.</param>
/// <returns>The index in the collection of the specified object, if found; otherwise, -1.</returns>
public int IndexOf(ShowtopicPageAttachmentInfo value)
{
return this.List.IndexOf(value);
}
/// <summary>
/// Copies the collection Components to a one-dimensional <see cref="T:System.Array">Array</see> instance beginning at the specified index.
/// </summary>
/// <param name="array">The one-dimensional <see cref="T:System.Array">Array</see> that is the destination of the values copied from the collection.</param>
/// <param name="index">The index of the array at which to begin inserting.</param>
public void CopyTo(ShowtopicPageAttachmentInfo[] array, int index)
{
this.List.CopyTo(array, index);
}
/// <summary>
/// 加载单个附件实体对象
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
public static ShowtopicPageAttachmentInfo LoadSingleAttachmentInfo(IDataReader reader)
{
ShowtopicPageAttachmentInfo attInfo = new ShowtopicPageAttachmentInfo();
attInfo.Aid = TypeConverter.ObjectToInt(reader["aid"]);
attInfo.Pid = TypeConverter.ObjectToInt(reader["pid"]);
attInfo.Postdatetime = reader["postdatetime"].ToString();
attInfo.Filename = reader["filename"].ToString();
attInfo.Description = reader["description"].ToString();
attInfo.Filetype = reader["filetype"].ToString();
attInfo.Filesize = TypeConverter.ObjectToInt(reader["filesize"]);
attInfo.Attachment = reader["attachment"].ToString();
attInfo.Downloads = TypeConverter.ObjectToInt(reader["downloads"]);
return attInfo;
}
