private CSVTitle FindTitleCache()
{
if (_title == null || _title._columnIndex != _columnIndex)
{
_title = _container.FindTitle(_columnIndex);
}
return(_title);
}
/// <summary>
/// 解析表头信息
/// </summary>
/// <param name="sr"></param>
protected virtual void ResolveTitle(StringReader sr)
{
string titleLine_ = sr.ReadLine();
string[] titles = titleLine_.Split(COMMA);
for (int i = 0; i < titles.Length; i++)
{
CSVTitle title = new CSVTitle(titles[i], 0, i, _table, DataType.Unknown);
_table.AddTitle(title);
}
}
/// <summary>
/// 获取列数据类型
/// </summary>
/// <param name="titleName"></param>
/// <returns></returns>
public DataType GetColumnType(string titleName)
{
CSVTitle title = FindTitle(titleName);
if (title == null)
{
throw (new Exception(string.Format("Can not find column with title:{0}", titleName)));
}
return(title.dataType);
}
/// <summary>
/// 设置列数据类型
/// </summary>
/// <param name="titleName"></param>
/// <param name="type"></param>
public void SetColumnType(string titleName, DataType type)
{
CSVTitle title = FindTitle(titleName);
if (title == null)
{
return;
}
title.dataType = type;
}
/// <summary>
/// 获取指定标题的单元
/// </summary>
/// <param name="titleName"></param>
/// <returns></returns>
public CSVEntry GetEntry(string titleName)
{
if (string.IsNullOrEmpty(titleName))
{
return(null);
}
CSVTitle title_ = null;
int titleIndex_ = _container.FindTitle(titleName, out title_);
if (title_ == null)
{
return(null);
}
return(GetEntry(titleIndex_));
}
/// <summary>
/// 查找指定名称的列标题，并返回列索引
/// </summary>
/// <param name="titleName"></param>
/// <param name="title"></param>
/// <returns></returns>
public int FindTitle(string titleName, out CSVTitle title)
{
for (int i = 0; i < _titles.Count; i++)
{
if (_titles[i] == null)
{
continue;
}
if (_titles[i].IsMatchTitle(titleName))
{
title = _titles[i];
return(i);
}
}
title = null;
return(-1);
}
internal void AddTitle(CSVTitle title)
{
_titles.Add(title);
}