private static bool TryFromClass(
object value,
XInfo from,
XInfo to,
out object result,
string format)
{
result = GetDefaultValue(to.Category);
switch (to.Category)
{
case TypeCategory.Array:
return(TryToArray(
from,
to,
value,
out result,
format
));
case TypeCategory.Class:
if (from.Equals(to))
{
result = value;
return(true);
}
var underlyingType = Nullable.GetUnderlyingType(
to.Type
);
var converter = underlyingType == null
? TypeDescriptor.GetConverter(to.Type)
: TypeDescriptor.GetConverter(underlyingType);
if (null != converter)
{
try {
result = converter.ConvertFrom(value);
return(true);
} catch (Exception ex) {
//
}
}
result = ForceClone(value, to.Type);
return(true);
case TypeCategory.Struct:
var dic = GetValues(value);
result = SetValues(dic, to.Type);
return(true);
case TypeCategory.Enum:
case TypeCategory.Interface:
case TypeCategory.Stream:
case TypeCategory.Color:
case TypeCategory.String:
case TypeCategory.DateTime:
case TypeCategory.Decimal:
case TypeCategory.Boolean:
case TypeCategory.Char:
case TypeCategory.Byte:
case TypeCategory.SByte:
case TypeCategory.Int16:
case TypeCategory.UInt16:
case TypeCategory.Int32:
case TypeCategory.UInt32:
case TypeCategory.IntPtr:
case TypeCategory.UIntPtr:
case TypeCategory.Int64:
case TypeCategory.UInt64:
case TypeCategory.Single:
case TypeCategory.Double:
case TypeCategory.Null:
case TypeCategory.Others:
default:
return(false);
}
}
private static bool TryFromStruct(
object value,
XInfo from,
XInfo to,
out object result,
string format)
{
result = GetDefaultValue(to.Category);
var str = value.ToString();
if (from.Equals(to))
{
result = value;
return(true);
}
switch (to.Category)
{
case TypeCategory.Struct:
case TypeCategory.Class:
var dic = GetValues(value);
result = SetValues(dic, to.Type);
return(true);
case TypeCategory.Array:
case TypeCategory.String:
case TypeCategory.Stream:
case TypeCategory.Color:
case TypeCategory.Enum:
case TypeCategory.DateTime:
case TypeCategory.Boolean:
case TypeCategory.Char:
case TypeCategory.Decimal:
case TypeCategory.Byte:
case TypeCategory.SByte:
case TypeCategory.Int16:
case TypeCategory.UInt16:
case TypeCategory.Int32:
case TypeCategory.UInt32:
case TypeCategory.Int64:
case TypeCategory.UInt64:
case TypeCategory.Single:
case TypeCategory.Double:
return(TryFromString(
str,
from,
to,
out result,
format
));
case TypeCategory.Interface:
case TypeCategory.IntPtr:
case TypeCategory.UIntPtr:
case TypeCategory.Null:
case TypeCategory.Others:
default:
return(false);
}
}
private static bool TryFromEnum(
object value,
XInfo from,
XInfo to,
out object result,
string format)
{
result = GetDefaultValue(to.Category);
decimal decimalVal;
var decimalFlag = decimal.TryParse(
((int)value).ToString(),
out decimalVal
);
switch (to.Category)
{
case TypeCategory.Array:
return(TryToArray(
from,
to,
value,
out result,
format
));
case TypeCategory.Enum:
if (from.Equals(to))
{
result = value;
return(true);
}
return(false);
case TypeCategory.String:
result = IsToConverter.FromEnum.ToString(
from.Type,
value
);
return(true);
case TypeCategory.Stream:
return(TryFromString(
value.ToString(),
XInfo.String.Value,
to,
out result,
format
));
case TypeCategory.Char:
result = Convert.ToChar((int)value);
return(true);
case TypeCategory.Decimal:
result = decimalVal;
return(decimalFlag);
case TypeCategory.Byte:
if (!decimalFlag)
{
return(false);
}
byte byteVal;
if (decimalVal.TryTo <byte>(out byteVal))
{
result = byteVal;
return(true);
}
else
{
return(false);
}
case TypeCategory.SByte:
if (!decimalFlag)
{
return(false);
}
sbyte sbyteVal;
if (decimalVal.TryTo <sbyte>(out sbyteVal))
{
result = sbyteVal;
return(true);
}
else
{
return(false);
}
case TypeCategory.Int16:
if (!decimalFlag)
{
return(false);
}
Int16 int16Val;
if (decimalVal.TryTo <Int16>(out int16Val))
{
result = int16Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.UInt16:
if (!decimalFlag)
{
return(false);
}
UInt16 uint16Val;
if (decimalVal.TryTo <UInt16>(out uint16Val))
{
result = uint16Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.Int32:
if (!decimalFlag)
{
return(false);
}
Int32 int32Val;
if (decimalVal.TryTo <Int32>(out int32Val))
{
result = int32Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.UInt32:
if (!decimalFlag)
{
return(false);
}
UInt32 uint32Val;
if (decimalVal.TryTo <UInt32>(out uint32Val))
{
result = uint32Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.Int64:
if (!decimalFlag)
{
return(false);
}
Int64 int64Val;
if (decimalVal.TryTo <Int64>(out int64Val))
{
result = int64Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.UInt64:
if (!decimalFlag)
{
return(false);
}
UInt64 uint64Val;
if (decimalVal.TryTo <UInt64>(out uint64Val))
{
result = uint64Val;
return(true);
}
else
{
return(false);
}
case TypeCategory.Single:
if (!decimalFlag)
{
return(false);
}
Single singleVal;
if (decimalVal.TryTo <Single>(out singleVal))
{
result = singleVal;
return(true);
}
else
{
return(false);
}
case TypeCategory.Double:
if (!decimalFlag)
{
return(false);
}
Double doubleVal;
if (decimalVal.TryTo <Double>(out doubleVal))
{
result = doubleVal;
return(true);
}
else
{
return(false);
}
case TypeCategory.IntPtr:
case TypeCategory.UIntPtr:
case TypeCategory.Interface:
case TypeCategory.Class:
case TypeCategory.Struct:
case TypeCategory.Color:
case TypeCategory.DateTime:
case TypeCategory.Boolean:
case TypeCategory.Null:
case TypeCategory.Others:
default:
return(false);
}
}