// 输出 RML 格式的表格
// 本函数负责写入 <table> 元素
// parameters:
// nTopLines 顶部预留多少行
public void OutputRmlTable(
Report report,
SQLiteDataReader table,
XmlTextWriter writer,
int nMaxLines = -1)
{
// StringBuilder strResult = new StringBuilder(4096);
int i, j;
#if NO
if (nMaxLines == -1)
nMaxLines = table.Count;
#endif
writer.WriteStartElement("table");
writer.WriteAttributeString("class", "table");
writer.WriteStartElement("thead");
writer.WriteStartElement("tr");
int nEvalCount = 0; // 具有 eval 的栏目个数
for (j = 0; j < report.Count; j++)
{
PrintColumn column = (PrintColumn)report[j];
if (column.Colspan == 0)
continue;
if (string.IsNullOrEmpty(column.Eval) == false)
nEvalCount++;
writer.WriteStartElement("th");
if (string.IsNullOrEmpty(column.CssClass) == false)
writer.WriteAttributeString("class", column.CssClass);
if (column.Colspan > 1)
writer.WriteAttributeString("colspan", column.Colspan.ToString());
writer.WriteString(column.Title);
writer.WriteEndElement(); // </th>
}
writer.WriteEndElement(); // </tr>
writer.WriteEndElement(); // </thead>
// 合计数组
object[] sums = null; // 2008/12/1 new changed
if (report.SumLine)
{
sums = new object[report.Count];
for (i = 0; i < sums.Length; i++)
{
sums[i] = null;
}
}
NumberFormatInfo nfi = new CultureInfo("zh-CN", false).NumberFormat;
nfi.NumberDecimalDigits = 2;
writer.WriteStartElement("tbody");
// Jurassic.ScriptEngine engine = null;
if (nEvalCount > 0 && engine == null)
{
engine = new Jurassic.ScriptEngine();
engine.EnableExposedClrTypes = true;
}
// 内容行循环
for (i = 0; ; i++) // i < Math.Min(nMaxLines, table.Count)
{
if (table.HasRows == false)
break;
// Line line = table[i];
if (engine != null)
engine.SetGlobalValue("reader", table);
string strLineCssClass = "content";
#if NO
if (report.OutputLine != null)
{
OutputLineEventArgs e = new OutputLineEventArgs();
e.Line = line;
e.Index = i;
e.LineCssClass = strLineCssClass;
report.OutputLine(this, e);
if (e.Output == false)
continue;
strLineCssClass = e.LineCssClass;
}
#endif
// strResult.Append("<tr class='" + strLineCssClass + "'>\r\n");
writer.WriteStartElement("tr");
writer.WriteAttributeString("class", strLineCssClass);
// 列循环
for (j = 0; j < report.Count; j++)
{
PrintColumn column = (PrintColumn)report[j];
if (column.ColumnNumber < -1)
{
throw (new Exception("PrintColumn对象ColumnNumber列尚未初始化，位置" + Convert.ToString(j)));
}
string strText = "";
if (column.ColumnNumber != -1)
{
if (string.IsNullOrEmpty(column.Eval) == false)
{
// engine.SetGlobalValue("cell", line.GetObject(column.ColumnNumber));
strText = engine.Evaluate(column.Eval).ToString();
}
else if (column.DataType == DataType.PriceDouble)
{
if (table.IsDBNull(column.ColumnNumber /**/) == true)
strText = column.DefaultValue;
else
{
double v = table.GetDouble(column.ColumnNumber);
/*
NumberFormatInfo provider = new NumberFormatInfo();
provider.NumberDecimalDigits = 2;
provider.NumberGroupSeparator = ".";
provider.NumberGroupSizes = new int[] { 3 };
strText = Convert.ToString(v, provider);
* */
strText = v.ToString("N", nfi);
}
}
else if (column.DataType == DataType.PriceDecimal)
{
if (table.IsDBNull(column.ColumnNumber) == true)
strText = column.DefaultValue;
else
{
decimal v = table.GetDecimal(column.ColumnNumber);
strText = v.ToString("N", nfi);
}
}
else if (column.DataType == DataType.PriceDecimal)
{
if (table.IsDBNull(column.ColumnNumber) == true)
strText = column.DefaultValue;
else
{
decimal v = table.GetDecimal(column.ColumnNumber);
strText = v.ToString("N", nfi);
}
}
else if (column.DataType == DataType.Price)
{
// Debug.Assert(false, "");
if (table.IsDBNull(column.ColumnNumber) == true)
strText = column.DefaultValue; // 2005/5/26
else
strText = table.GetString(column.ColumnNumber); //
}
else
strText = table.GetString(column.ColumnNumber/*, column.DefaultValue*/);
}
else
{
strText = table.GetString(0); // line.Entry;
}
writer.WriteStartElement(j == 0 ? "th" : "td");
if (string.IsNullOrEmpty(column.CssClass) == false)
writer.WriteAttributeString("class", column.CssClass);
writer.WriteString(strText);
writer.WriteEndElement(); // </td>
if (report.SumLine == true
&& column.Sum == true
&& column.ColumnNumber != -1)
{
try
{
// if (column.DataType != DataType.Currency)
{
object v = table.GetValue(column.ColumnNumber);
#if NO
if (report.SumCell != null)
{
SumCellEventArgs e = new SumCellEventArgs();
e.DataType = column.DataType;
e.ColumnNumber = column.ColumnNumber;
e.LineIndex = i;
e.Line = line;
e.Value = v;
report.SumCell(this, e);
if (e.Value == null)
continue;
v = e.Value;
}
#endif
if (sums[j] == null)
sums[j] = v;
else
{
sums[j] = AddValue(column.DataType,
sums[j],
v);
// sums[j] = ((decimal)sums[j]) + v;
}
}
}
catch (Exception ex) // 俘获可能因字符串转换为整数抛出的异常
{
throw new Exception("在累加 行 " + i.ToString() + " 列 " + column.ColumnNumber.ToString() + " 值的时候，抛出异常: " + ex.Message);
}
}
}
// strResult.Append("</tr>\r\n");
writer.WriteEndElement(); // </tr>
}
// 根据一个表格按照缺省特性创建一个Report对象
// parameters:
// strDefaultValue 全部列的缺省值
// null表示不改变缺省值""，否则为strDefaultValue指定的值
// bSum 是否全部列都要参加合计
// bContentColumn 是否考虑内容行中比指定的栏目多出来的栏目
public static Report BuildReport(SQLiteDataReader table,
string strColumnTitles,
string strDefaultValue,
bool bSum,
bool bContentColumn = true)
{
// Debug.Assert(false, "");
if (table.HasRows == false)
return null; // 无法创建。内容必须至少一行以上
Report report = new Report();
// Line line = table.FirstHashLine(); // 随便得到一行。这样不要求table排过序
// 列标题
{
PrintColumn column = new PrintColumn();
column.ColumnNumber = -1;
report.Add(column);
}
int nTitleCount = 0;
if (strColumnTitles != null)
{
string[] aName = strColumnTitles.Split(new Char[] { ',' });
nTitleCount = aName.Length;
}
int nColumnCount = nTitleCount;
if (bContentColumn == true)
nColumnCount = Math.Max(table.FieldCount, nTitleCount);
// 检查表格第一行
// 因为列标题column已经加入，所以现在最多加入nTitleCount-1栏
for (int i = 0; i < nColumnCount - 1; i++)
{
PrintColumn column = new PrintColumn();
column.ColumnNumber = i;
if (strDefaultValue != null)
column.DefaultValue = strDefaultValue;
column.Sum = bSum;
report.Add(column);
}
// 添加列标题
if (strColumnTitles != null)
{
string[] aName = strColumnTitles.Split(new Char[] { ',' });
/*
if (aName.Length < report.Count)
{
string strError = "列定义 '" + strColumnTitles + "' 中的列数 " + aName.Length.ToString() + "小于报表实际最大列数 " + report.Count.ToString();
throw new Exception(strError);
}*/
int j = 0;
for (j = 0; j < report.Count; j++)
{
// 2007/10/26
if (j >= aName.Length)
break;
string strText = "";
strText = aName[j];
string strNameText = "";
string strNameClass = "";
int nRet = strText.IndexOf("||");
if (nRet == -1)
strNameText = strText;
else
{
strNameText = strText.Substring(0, nRet);
strNameClass = strText.Substring(nRet + 2);
}
PrintColumn column = (PrintColumn)report[j];
if (j < aName.Length)
{
column.Title = strNameText;
column.CssClass = strNameClass;
}
}
}
report.SumLine = bSum;
// 计算 colspan
PrintColumn current = null;
foreach (PrintColumn column in report)
{
if (string.IsNullOrEmpty(column.Title) == false
&& column.Title[0] == '+'
&& current != null)
{
column.Colspan = 0; // 表示这是一个从属的列
current.Colspan++;
}
else
current = column;
}
return report;
}