public override string ToString()
{
switch (this.type)
{
case ValueDataType.Boolean:
return(QueryValueModel.String(this.boolVal));
case ValueDataType.Double:
return(QueryValueModel.String(this.dblVal));
case ValueDataType.Sequence:
return(QueryValueModel.String(this.sequence));
case ValueDataType.String:
return(this.strVal);
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.TypeMismatch));
}
public string GetResultAsString()
{
switch (this.resultType)
{
case XPathResultType.Number:
return(QueryValueModel.String(this.numberResult));
case XPathResultType.String:
return(this.stringResult);
case XPathResultType.Boolean:
return(QueryValueModel.String(this.boolResult));
case XPathResultType.NodeSet:
return(QueryValueModel.String(this.nodeSetResult));
}
throw Fx.AssertAndThrow("Unexpected result type.");
}
internal static string ToString(object o)
{
if (o is bool)
{
return(QueryValueModel.String((bool)o));
}
if (o is string)
{
return((string)o);
}
if (o is double)
{
return(QueryValueModel.String((double)o));
}
if (!(o is XPathNodeIterator))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(System.ServiceModel.SR.GetString("QueryFunctionStringArg")));
}
XPathNodeIterator iterator = (XPathNodeIterator)o;
iterator.MoveNext();
return(iterator.Current.Value);
}
internal static double Double(XPathNodeIterator iterator)
{
Fx.Assert(null != iterator, "");
return(QueryValueModel.Double(QueryValueModel.String(iterator)));
}
