/// <summary>
/// 提取所有符合条件的数据项
/// </summary>
public List <ReportRow> QueryMatchItems(Predicate <ReportRow> match = null)
{
List <ReportRow> items = new List <ReportRow>();
using (var c = new ReaderCursor(_txtContent))
{
c.SkipLine(ReportFile_HeadLine_Length);
int chrPeek = -1;
while ((chrPeek = c.__r__.Peek()) != -1)
{
if (chrPeek == (int)'\r' || chrPeek == (int)'\n')
{
break;
}
ReportRow item = new ReportRow();
for (int i = 0, j = Columns.Count; i < j; i++)
{
var col = Columns[i];
if (i < j - 1)
{
char[] varChars = new char[col.ColumnLength];
int totalRead = c.__r__.Read(varChars, 0, varChars.Length);
item[col.ColumnName] = (new string(varChars, 0, totalRead)).TrimEnd();
c.SkipColumn(ReportFile_Space_Length);
}
else
{
StringBuilder sb = new StringBuilder();
int readChar = -1;
while ((readChar = c.__r__.Read()) != -1)
{
char chr = (char)readChar;
if (chr == '\n')
{
break;
}
else
{
sb.Append(chr);
}
}
item[col.ColumnName] = sb.ToString().TrimEnd();
continue;
}
}
if (match == null || match(item))
{
items.Add(item);
}
}
}
return(items);
}
public void FindRowAction(Action <ReportRow> rowAct, bool onErrorBreak = false)
{
Exception lastError = null;
using (var c = new ReaderCursor(_txtContent))
{
c.SkipLine(ReportFile_HeadLine_Length);
int chrPeek = -1;
while ((chrPeek = c.__r__.Peek()) != -1)
{
if (chrPeek == (int)'\r' || chrPeek == (int)'\n')
{
break;
}
ReportRow item = new ReportRow();
for (int i = 0, j = Columns.Count; i < j; i++)
{
var col = Columns[i];
if (i < j - 1)
{
char[] varChars = new char[col.ColumnLength];
int totalRead = c.__r__.Read(varChars, 0, varChars.Length);
item[col.ColumnName] = (new string(varChars, 0, totalRead)).TrimEnd();
c.SkipColumn(ReportFile_Space_Length);
}
else
{
StringBuilder sb = new StringBuilder();
int readChar = -1;
while ((readChar = c.__r__.Read()) != -1)
{
char chr = (char)readChar;
if (chr == '\n')
{
break;
}
else
{
sb.Append(chr);
}
}
item[col.ColumnName] = sb.ToString().TrimEnd();
continue;
}
}
try
{
rowAct(item);
}
catch (Exception ex)
{
lastError = ex;
if (onErrorBreak)
{
break;
}
}
}
}
if (lastError != null)
{
throw lastError;
}
}
