/// <summary>
/// 获取标签定义的值
/// </summary>
/// <returns>根据标签定义和所依赖的资源获取标签的最终值。</returns>
public virtual object GetTagValue()
{
if (this.TagDefinition == null)
{
return(null);
}
if (!this.IsDependencyTag)
{
return(this.TagDefinition);
}
else
{
IResourceDependency res = this.GetResourceDependency();
if (res != null && res.IsDefined(this.TagDefinition))
{
return(res.GetDefinition(this.TagDefinition));
}
else
{
//直接返回定义继续解析
return(this.OuterDefineText);
}
}
}
/// <summary>
/// 设置输出形式
/// </summary>
public override string ToString()
{
IResourceDependency res = this.GetResourceDependency();
if (res == null && TagDefinition.IndexOf("(") == -1 && TagDefinition.IndexOf('[') == -1 && TagDefinition.IndexOf('$') == -1)
{
object tagValue = base.GetTagValue();
return((tagValue == null) ? "" : tagValue.ToString());
}
else
{
#region 如果资源有直接定义
if (res != null)
{
string resDefineKey = this.TagDefinition;
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + " " + res.ToString());
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + " " + resDefineKey);
if (res.IsDefined(resDefineKey))
{
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + resDefineKey + " " + res.ToString());
return(res.GetDefinition(resDefineKey).ToString());
}
}
#endregion
#region 草稿设计
//()表示函数 []表示数组
//{#$["首页","新闻","动态","联系"][2]$#} = "动态"
//{#$Now()$#} {#$Now('yyyy-MM-dd HH:mm:ss')$#} = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")
//函数表达式数据绑定
//-----------------------------------------------
//{$Left(源文本,字段长)}
//->
//源文本 = {#FieldName},{%Year}
//字段长 = 12
//{${%Hour}==12 ? "正午": "其他时间"}
//{$Contains({#FieldName},"虚数传播") ? "包含" : "不包含"}
//数据操作符号
//> < == != ?:
#endregion
//避免SVN/VSS关键字替换
if (this.TagDefinition == "{#$" + "Date$#}")
{
return(DateTime.Now.Date.ToString("yyyy-M-d"));
}
else if (this.TagDefinition == "{#$WK$#}")
{
return(DateTime.Now.DayOfWeek.GetHashCode().ToString());
}
else if (this.TagDefinition == "{#$Year$#}")
{
return(DateTime.Now.Year.ToString());
}
else if (this.TagDefinition == "{#$Month$#}")
{
return(DateTime.Now.Month.ToString());
}
else if (this.TagDefinition == "{#$Day$#}")
{
return(DateTime.Now.Day.ToString());
}
else if (this.TagDefinition == "{#$Hour$#}")
{
return(DateTime.Now.Hour.ToString());
}
else if (this.TagDefinition == "{#$Minute$#}")
{
return(DateTime.Now.Minute.ToString());
}
else if (this.TagDefinition == "{#$Second$#}")
{
return(DateTime.Now.Second.ToString());
}
else if (this.TagDefinition == "{#$MS$#}")
{
return(DateTime.Now.Millisecond.ToString());
}
else if (this.TagDefinition.StartsWith("{#$<") && this.TagDefinition.EndsWith(">$#}"))
{
string urlMatchVal = this.TagDefinition.Substring(4, this.TagDefinition.Length - 8);
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + urlMatchVal);
if (HttpContext.Current.Items["UrlMatchGroup"] == null)
{
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + this.TagDefinition);
return(string.Empty);
}
else
{
GroupCollection grpCol = (GroupCollection)HttpContext.Current.Items["UrlMatchGroup"];
if (Util.IsNumerical(urlMatchVal))
{
return(grpCol[Convert.ToInt32(urlMatchVal)].Value);
}
else
{
return(grpCol[urlMatchVal].Value);
}
}
}
else
{
string objResult = this.TagDefinition;
try
{
//if (GetResourceDependency() != null)
//{
// OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + GetResourceDependency().ToString());
//}
using (TagParse tgp = new TagParse(objResult, GetResourceDependency()))
{
objResult = tgp.GetValue();
}
}
catch (Exception exp)
{
//OleDbHelper.AppendToFile("~/debug.log", System.Environment.NewLine + this.TagDefinition + "\n" + res);
throw new InvalidOperationException(string.Format("系统标签解析错误，标签定义：{0}\n提示：{1} \n源跟踪：{2}",
objResult,
exp.Message,
exp.StackTrace));
}
return(objResult);
}
}
}