private void onTypeChanged(eFLim Old, eFLim New)
{
EventHandler <EA_valueChange <eFLim> > handler = event_changedType;
if (handler != null)
{
handler(this, new EA_valueChange <eFLim>(Old, New));
}
}
public static Func <DateTime, DateTime> generateStatic
(eFLim direction, DateTime minLimit, DateTime maxLimit)
{
BlockExpression block;
ConstantExpression pMin = Expression.Constant(minLimit);
ConstantExpression pMax = Expression.Constant(maxLimit);
ParameterExpression pDate = Expression.Parameter(typeof(DateTime));
ParameterExpression pResult = Expression.Parameter(typeof(DateTime));
ParameterExpression pTemp = Expression.Parameter(typeof(DateTime));
switch (direction)
{
case eFLim.Fixed:
block = Expression.Block(
Expression.Assign(pResult, pMin)
);
break;
case eFLim.Left:
block = Expression.Block(
Expression.IfThenElse(
Expression.LessThanOrEqual(pDate, pMax),
Expression.Assign(pResult, pDate),
Expression.Assign(pResult, pMax))
);
break;
case eFLim.Right:
block = Expression.Block(
Expression.IfThenElse(
Expression.GreaterThanOrEqual(pDate, pMin),
Expression.Assign(pResult, pDate),
Expression.Assign(pResult, pMin))
);
break;
default:
throw new Exception("Неверное значение параметра eFLim метода generateDynamicDir");
}
BlockExpression resBlock = Expression.Block(
typeof(DateTime),
new[] { pResult, pTemp },
block,
pResult
);
return(Expression.Lambda <Func <DateTime, DateTime> >(resBlock, pDate).Compile());
}
public static Func <DateTime, DateTime, double> generateLimitRange(eFLim direction)
{
ParameterExpression pMin = Expression.Parameter(typeof(DateTime));
ParameterExpression pMax = Expression.Parameter(typeof(DateTime));
ParameterExpression pDouble = Expression.Parameter(typeof(double));
ConstantExpression cDNull = Expression.Constant((double)0, typeof(double));
ConstantExpression cDUnlim = Expression.Constant((double)-1, typeof(double));
Func <DateTime, DateTime, double> fncRange = (min, max) =>
{
double result = max.Subtract(min).Days;
return((result < 0) ? 0 : result);
};
Expression <Func <DateTime, DateTime, double> > lmbRange = (min, max) => fncRange(min, max);
BlockExpression block = Expression.Block(typeof(double), cDNull);
switch (direction)
{
case eFLim.Fixed:
block =
Expression.Block(
typeof(double),
new[] { pDouble },
Expression.Assign(pDouble, cDNull),
pDouble
);
break;
case eFLim.Right:
case eFLim.Left:
block =
Expression.Block(
typeof(double),
new[] { pDouble },
Expression.Assign(pDouble, cDUnlim),
pDouble
);
break;
}
return(Expression.Lambda <Func <DateTime, DateTime, double> >(block, pMin, pMax).Compile());
}
public limit(eFLim type, DateTime date)
{
this.type = type;
this.date = date;
}
public void setTypeLimit(eFLim type)
{
this.type = type;
}
public limit(eFLim type, DateTime date)
{
this.type = type;
this.date = date;
}
private void onTypeChanged(eFLim Old, eFLim New)
{
EventHandler<EA_valueChange<eFLim>> handler = event_changedType;
if (handler != null) handler(this, new EA_valueChange<eFLim>(Old, New));
}
public void setTypeLimit(eFLim type)
{
this.type = type;
}
public static Func<DateTime, DateTime> generateStatic(eFLim direction, DateTime minLimit, DateTime maxLimit)
{
BlockExpression block;
ConstantExpression pMin = Expression.Constant(minLimit);
ConstantExpression pMax = Expression.Constant(maxLimit);
ParameterExpression pDate = Expression.Parameter(typeof(DateTime));
ParameterExpression pResult = Expression.Parameter(typeof(DateTime));
ParameterExpression pTemp = Expression.Parameter(typeof(DateTime));
switch (direction)
{
case eFLim.Fixed:
block = Expression.Block(
Expression.Assign(pResult, pMin)
);
break;
case eFLim.Left:
block = Expression.Block(
Expression.IfThenElse(
Expression.LessThanOrEqual(pDate, pMax),
Expression.Assign(pResult, pDate),
Expression.Assign(pResult, pMax))
);
break;
case eFLim.Right:
block = Expression.Block(
Expression.IfThenElse(
Expression.GreaterThanOrEqual(pDate, pMin),
Expression.Assign(pResult, pDate),
Expression.Assign(pResult, pMin))
);
break;
default:
throw new Exception("Неверное значение параметра eFLim метода generateDynamicDir");
}
BlockExpression resBlock = Expression.Block(
typeof(DateTime),
new[] { pResult, pTemp },
block,
pResult
);
return Expression.Lambda<Func<DateTime, DateTime>>(resBlock, pDate).Compile();
}
public static Func<DateTime, DateTime, double> generateLimitRange(eFLim direction)
{
ParameterExpression pMin = Expression.Parameter(typeof(DateTime));
ParameterExpression pMax = Expression.Parameter(typeof(DateTime));
ParameterExpression pDouble = Expression.Parameter(typeof(double));
ConstantExpression cDNull = Expression.Constant((double)0, typeof(double));
ConstantExpression cDUnlim = Expression.Constant((double)-1, typeof(double));
Func<DateTime, DateTime, double> fncRange = (min, max) =>
{
double result = max.Subtract(min).Days;
return (result < 0) ? 0 : result;
};
Expression<Func<DateTime, DateTime, double>> lmbRange = (min, max) => fncRange(min, max);
BlockExpression block = Expression.Block(typeof(double), cDNull);
switch (direction)
{
case eFLim.Fixed:
block =
Expression.Block(
typeof(double),
new[] { pDouble },
Expression.Assign(pDouble, cDNull),
pDouble
);
break;
case eFLim.Right:
case eFLim.Left:
block =
Expression.Block(
typeof(double),
new[] { pDouble },
Expression.Assign(pDouble, cDUnlim),
pDouble
);
break;
}
return Expression.Lambda<Func<DateTime, DateTime, double>>(block, pMin, pMax).Compile();
}
