public static Expression CreateKeyValueAnyExpression(this Expression valueParam, EnumerableMethodName enumerableMethodName, string propertyName, Expression boolExpression, ParameterExpression keyValueParm)
{
var enumerableProperty = Expression.Property(valueParam, propertyName);
var valueLamda = Expression.Lambda <Func <KeyValuePair <string, IEnumerable <string> >, bool> >(boolExpression, new[] { keyValueParm });
var nullConst = Expression.Constant(null);
var notEqualNullExpr = Expression.NotEqual(enumerableProperty, nullConst);
return(Expression.AndAlso(notEqualNullExpr, Expression.Call(typeof(Enumerable), enumerableMethodName.ToString(), new[] { typeof(KeyValuePair <string, IEnumerable <string> >) }, enumerableProperty, valueLamda)));
}
//public static Expression CreateKeyAnyExpression(this Expression valueParam, EnumerableMethodName enumerableMethodName, string propertyName, Expression boolExpression, ParameterExpression keyValueParm)
//{
// var enumerableProperty = Expression.Property(valueParam, "Attributes");
// var valueLamda = Expression.Lambda<Func<Dictionary<string, IEnumerable<string>>, bool>>(boolExpression, new[] { keyValueParm });
// var nullConst = Expression.Constant(null);
// var notEqualNullExpr = Expression.NotEqual(enumerableProperty, nullConst);
// return Expression.AndAlso(notEqualNullExpr, Expression.Call(typeof(Enumerable), enumerableMethodName.ToString(), new[] { typeof(KeyValuePair<string, IEnumerable<string>>) }, enumerableProperty, valueLamda));
//}
public static Expression CreateElementsWhereExpression <TInput>(this ParameterExpression valueParam, EnumerableMethodName enumerableMethodName, string propertyName, Expression boolExpression)
{
var enumerableProperty = Expression.Property(valueParam, propertyName);
var valueLamda = Expression.Lambda <Func <TInput, bool> >(boolExpression, new[] { valueParam });
return(Expression.Call(typeof(Enumerable), enumerableMethodName.ToString(), new[] { typeof(TInput) }, enumerableProperty, valueLamda));
}
public static Expression CreateKeyValueBoolExpression <TValue>(this Expression keyValueParm, ParameterExpression valueParam, Expression valueExpression, EnumerableMethodName enumerableMethodName)
{
var valueType = typeof(TValue);
var valueProp = Expression.Property(keyValueParm, "Value");
var valueLamda = Expression.Lambda <Func <TValue, bool> >(valueExpression, new[] { valueParam });
var nullConst = Expression.Constant(null);
var notEqualNullExpr = Expression.NotEqual(valueProp, nullConst);
return(Expression.AndAlso(notEqualNullExpr, Expression.Call(typeof(Enumerable), enumerableMethodName.ToString(), new[] { valueType }, valueProp, valueLamda)));
}
