/// <summary>
/// 将标签数据源中内容替换标签/绑定数据源
/// </summary>
/// <param name="dtDataSource">数据源</param>
/// <param name="labelParseParam">标签参数</param>
/// <param name="freeLabel">当前解析的标签</param>
/// <returns></returns>
private string DataSourceBind(DataTable dtDataSource, LoopLabelParseParam labelParseParam, FreeLabel freeLabel)
{
DataTable dataSource;
LoopLabelParseParam labelParam;
string itemContent;
StringBuilder sbResult;
sbResult = new StringBuilder();
dataSource = dtDataSource;
labelParam = labelParseParam;
switch (Target) // 链接打开窗口
{
case LinkOpenType.Blank:
labelParam.ItemContent = labelParam.ItemContent.Replace("{$Target}", "_blank");
break;
case LinkOpenType.Self:
labelParam.ItemContent = labelParam.ItemContent.Replace("{$Target}", "_self");
break;
default:
labelParam.ItemContent = labelParam.ItemContent.Replace("{$Target}", "_self");
break;
}
if (dataSource != null && dataSource.Rows.Count > 0)
{
if (labelParam.IsLoop) // 循环
{
foreach (DataRow dr in dataSource.Rows)
{
itemContent = SingleRecordBind(dr, labelParam.LstField, labelParam.ItemContent, freeLabel.MenuDirUrl, this.FileType, this.SiteDirUrl, this.CSaveType);
sbResult.Append(itemContent);
}
}
else // 单记录
{
itemContent = SingleRecordBind(dataSource.Rows[0], labelParam.LstField, labelParam.ItemContent, freeLabel.MenuDirUrl, this.FileType, this.SiteDirUrl, this.CSaveType);
sbResult.Append(itemContent);
}
}
return(sbResult.ToString());
}
/// <summary>
/// 获取自由标签解析后的参数
/// </summary>
/// <param name="labelContent">标签内容</param>
/// <param name="itemContentTag">ItemTemplate内容替换标签</param>
/// <returns></returns>
public LoopLabelParseParam GetLoopLabelParam(string labelContent, string itemContentTag)
{
LoopLabelParseParam resultParam; // 解析后的参数
Regex loopReg; // 匹配循环标签
Regex fieldReg; // 匹配字段
Match loopMatch;
MatchCollection fieldMatch; // 字段匹配内容
string itemTemplateContent; // 循环体内容
List <Field> lstFieldParam; // 所有字段参数
Field fieldParam; // 字段参数
loopReg = new Regex(@"\[HQB\.Loop\](?<1>.*)\[/HQB\.Loop\]", RegexOptions.Singleline | RegexOptions.IgnoreCase);
fieldReg = new Regex(@"\{\$Field\((?<1>\d),(?<2>[^,]+),(?<3>[^)]*)\)\}|\{\$Field\((?<1>\d),(?<2>[^,]+)\)\}", RegexOptions.Singleline | RegexOptions.IgnoreCase);
resultParam = new LoopLabelParseParam();
lstFieldParam = new List <Field>();
loopMatch = loopReg.Match(labelContent);
if (loopMatch.Success) // 循环标签
{
resultParam.IsLoop = true;
resultParam.LabelTemplate = labelContent.Replace(loopMatch.Value, itemContentTag);
itemTemplateContent = loopMatch.Groups[1].Value;
}
else
{
resultParam.IsLoop = false;
resultParam.LabelTemplate = itemContentTag;
itemTemplateContent = labelContent;
}
fieldMatch = fieldReg.Matches(itemTemplateContent); // 匹配循环体中的所有字段
foreach (Match matchItem in fieldMatch)
{
fieldParam = GetFieldParam(matchItem.Groups[2].Value, matchItem.Groups[1].Value, matchItem.Groups[3].Value);
itemTemplateContent = itemTemplateContent.Replace(matchItem.Value, "{[#" + fieldParam.Name + "#]}");
lstFieldParam.Add(fieldParam);
}
resultParam.LstField = lstFieldParam;
resultParam.ItemContent = itemTemplateContent;
return(resultParam);
}
