private static bool GetBool(Topic.VT vt, object o, Topic.PriDT dt)
{
bool ret;
switch (vt)
{
case Topic.VT.Bool:
case Topic.VT.Integer:
case Topic.VT.DateTime:
ret = dt.l != 0;
break;
case Topic.VT.Float:
ret = dt.d != 0;
break;
case Topic.VT.String:
if (!bool.TryParse((string)o, out ret))
{
ret = false;
}
break;
default:
ret = false;
break;
}
return(ret);
}
private static double GetDouble(Topic.VT vt, object o, Topic.PriDT dt)
{
double ret;
switch (vt)
{
case Topic.VT.Bool:
case Topic.VT.Integer:
ret = dt.l;
break;
case Topic.VT.Float:
ret = dt.d;
break;
case Topic.VT.DateTime:
ret = dt.dt.ToOADate();
break;
case Topic.VT.String:
if (!double.TryParse((string)o, System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.InvariantCulture, out ret))
{
ret = 0;
}
break;
default:
ret = 0;
break;
}
return(ret);
}
private static DateTime GetDateTime(Topic.VT vt, object o, Topic.PriDT dt)
{
DateTime ret;
switch (vt)
{
case Topic.VT.DateTime:
ret = dt.dt;
break;
case Topic.VT.Bool:
case Topic.VT.Integer:
ret = new DateTime(dt.l);
break;
case Topic.VT.Float:
ret = DateTime.FromOADate(dt.d);
break;
case Topic.VT.String:
DateTime.TryParse((string)o, out ret);
break;
default:
ret = DateTime.MinValue;
break;
}
return(ret);
}
internal static T GetVal <T>(Topic.VT vt, ref object o, Topic.PriDT dt)
{
if (vt == Topic.VT.Ref && typeof(T) != typeof(Topic))
{
Topic r = o as Topic;
return(r == null?default(T):r.As <T>());
}
if (vt == Topic.VT.Null)
{
return(default(T));
}
try {
Delegate d;
if (_getters.TryGetValue(typeof(T), out d))
{
Func <Topic.VT, object, Topic.PriDT, T> f;
if ((f = d as Func <Topic.VT, object, Topic.PriDT, T>) != null)
{
return(f(vt, o, dt));
}
}
if (o == null)
{
switch (vt)
{
case Topic.VT.Bool:
o = dt.l != 0;
break;
case Topic.VT.Integer:
o = dt.l;
break;
case Topic.VT.DateTime:
o = dt.dt;
break;
case Topic.VT.Float:
o = dt.d;
break;
}
}
return((T)o);
}
catch (Exception) {
}
return(default(T));
}
private static long GetLong(Topic.VT vt, object o, Topic.PriDT dt)
{
long ret;
switch (vt)
{
case Topic.VT.Bool:
case Topic.VT.Integer:
case Topic.VT.DateTime:
ret = dt.l;
break;
case Topic.VT.Float:
ret = (long)Math.Truncate(dt.d);
break;
case Topic.VT.String:
if (!long.TryParse((string)o, out ret))
{
double tmp;
if (double.TryParse((string)o, System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.InvariantCulture, out tmp))
{
ret = (long)Math.Truncate(tmp);
}
else
{
ret = 0;
}
}
break;
default:
ret = 0;
break;
}
return(ret);
}
private static string GetString(Topic.VT vt, object o, Topic.PriDT dt)
{
string ret;
switch (vt)
{
case Topic.VT.Bool:
ret = dt.l == 0?bool.FalseString:bool.TrueString;
break;
case Topic.VT.Integer:
ret = dt.l.ToString();
break;
case Topic.VT.DateTime:
ret = dt.dt.ToString();
break;
case Topic.VT.Float:
ret = dt.d.ToString();
break;
case Topic.VT.String:
ret = (string)o;
break;
case Topic.VT.Object:
ret = o == null?string.Empty:o.ToString();
break;
default:
ret = string.Empty;
break;
}
return(ret);
}
internal static void Set <T>(T val, ref Topic.VT vt, ref object o, ref Topic.PriDT dt)
{
try {
if (vt == Topic.VT.Ref && typeof(T) != typeof(Topic))
{
(o as Topic).Set <T>(val); // ????
return;
}
o = val;
switch (Type.GetTypeCode(o == null?null:o.GetType()))
{
case TypeCode.Boolean:
dt.l = (bool)o?1:0;
vt = Topic.VT.Bool;
break;
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
dt.l = Convert.ToInt64(o);
vt = Topic.VT.Integer;
break;
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Decimal:
dt.d = Convert.ToDouble(o);
vt = Topic.VT.Float;
break;
case TypeCode.DateTime:
dt.dt = (DateTime)o;
vt = Topic.VT.DateTime;
break;
case TypeCode.Empty:
dt.l = 0;
vt = Topic.VT.Null;
break;
case TypeCode.Object:
default:
if (val is Topic)
{
vt = Topic.VT.Ref;
}
else if (val is string)
{
vt = Topic.VT.String;
}
else
{
vt = Topic.VT.Object;
}
break;
}
}
catch (Exception) {
}
}