private Expression(string expressionString)
{
TkDebug.AssertArgumentNullOrEmpty(expressionString, "expressionString", null);
fParser = ExpressionParser.ParseExpression(expressionString);
TkDebug.ThrowIfNoGlobalVariable();
PlugInFactoryManager factories = BaseGlobalVariable.Current.FactoryManager;
BasePlugInFactory paramFactory = factories.GetCodeFactory(
ParamExpressionPlugInFactory.REG_NAME);
BasePlugInFactory exprFactory = factories.GetCodeFactory(
ExpressionPlugInFactory.REG_NAME);
fExpressions = new List <BaseExpressionItem>();
foreach (string item in fParser.ParamArray)
{
string firstChar = item[0].ToString();
BaseExpressionItem expressionItem;
if (paramFactory.Contains(firstChar))
{
IParamExpression expression = paramFactory.CreateInstance <IParamExpression>(firstChar);
string parameter = item.Substring(1);
expressionItem = new ParamExpressionItem(expression, parameter);
}
else
{
IExpression expression = exprFactory.CreateInstance <IExpression>(item);
expressionItem = new ExpressionItem(expression, item);
}
fExpressions.Add(expressionItem);
}
}
private static string GetCtrlHtml(Tk5FieldInfoEx field, IFieldValueProvider provider,
String ctrl, BasePlugInFactory factroy, bool needId)
{
if (factroy.Contains(ctrl))
{
IControlHtml html = factroy.CreateInstance <IControlHtml>(ctrl);
return(html.GetHtml(field, provider, needId));
}
else
{
return(string.Format(ObjectUtil.SysCulture, "<!--系统当前没有注册{0}的控件，请完善-->", ctrl));
}
}
