public static IFluentContinuation <TViewModel, TPropertyValue> BetweenPoperties <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance,
Expression <Func <TViewModel, IViewModelProperty> > @from,
Expression <Func <TViewModel, IViewModelProperty> > to)
where TViewModel : ViewModelBase
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
implementerInstance.UpdateContext(@from);
implementerInstance.UpdateContext(to);
// uses parenthesis to satisfy syntax : IsNot.BetweenValues (...)
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.GreaterThanProperty(implementerInstance.Context.CurrentProperty, @from.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToProperty(implementerInstance.Context.CurrentProperty, @from.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
implementerInstance.AddToken(ExpressionNode.And());
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.LessThanProperty(implementerInstance.Context.CurrentProperty, to.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToProperty(implementerInstance.Context.CurrentProperty, to.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> BetweenValues <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance,
object @from,
object to)
where TViewModel : ViewModelBase
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
// uses parenthesis to satisfy syntax : IsNot.BetweenValues (...)
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.GreaterThanValue(implementerInstance.Context.CurrentProperty, @from));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, @from));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
implementerInstance.AddToken(ExpressionNode.And());
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.LessThanValue(implementerInstance.Context.CurrentProperty, to));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, to));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> MinLength <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance, int minLength)
where TViewModel : ViewModelBase
where TPropertyValue : IComparable <string>, IEquatable <string>
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
if (minLength <= 0)
{
throw new InvalidOperationException("minLength must be greater than 0");
}
var evaluatedValueProvider = new Func <object>(() =>
{
var value = (string)implementerInstance.Context.CurrentProperty.GetValue();
return(value == null ? 0 : value.Length);
});
var valueProvider = new Func <object>(() => minLength);
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.GreaterThanGeneric(evaluatedValueProvider, valueProvider));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToGeneric(evaluatedValueProvider, valueProvider));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> GreaterThanOrEqualTo <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance, LateValue <TPropertyValue> lateValue)
where TViewModel : ViewModelBase
where TPropertyValue : IComparable
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.GreaterThanLateValue(implementerInstance.Context.CurrentProperty, () => lateValue()));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToLateValue(implementerInstance.Context.CurrentProperty, () => lateValue()));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> NullOrEmpty <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance)
where TViewModel : ViewModelBase
where TPropertyValue : IComparable <string>, IEquatable <string>
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, null));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, string.Empty));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> GreaterThanOrEqualTo <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance, Expression <Func <TViewModel, IViewModelProperty> > propertyExpression)
where TViewModel : ViewModelBase
where TPropertyValue : IComparable
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
implementerInstance.UpdateContext(propertyExpression);
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.GreaterThanProperty(implementerInstance.Context.CurrentProperty, propertyExpression.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToProperty(implementerInstance.Context.CurrentProperty, propertyExpression.Compile()(implementerInstance.ViewModel)));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}
public static IFluentContinuation <TViewModel, TPropertyValue> Required <TViewModel, TPropertyValue>(
this IFluentOperator <TViewModel, TPropertyValue> instance)
where TViewModel : ViewModelBase
{
var implementerInstance = (FluentImplementer <TViewModel, TPropertyValue>)instance;
implementerInstance.EnsureContextCurrentPropertyIsNotNull();
// required = is neither null nor empty
implementerInstance.AddToken(ExpressionNode.Not());
implementerInstance.AddToken(ExpressionNode.OpenParenthesis());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, null));
implementerInstance.AddToken(ExpressionNode.Or());
implementerInstance.AddToken(ExpressionNode.EqualToValue(implementerInstance.Context.CurrentProperty, string.Empty));
implementerInstance.AddToken(ExpressionNode.CloseParenthesis());
return((IFluentContinuation <TViewModel, TPropertyValue>)instance);
}