public System.Linq.Expressions.Expression <Func <IEvaluationContext, bool> > GetExpression()
{
System.Linq.Expressions.ParameterExpression paramX = System.Linq.Expressions.Expression.Parameter(typeof(IEvaluationContext), "x");
var castOp = System.Linq.Expressions.Expression.MakeUnary(System.Linq.Expressions.ExpressionType.Convert, paramX, typeof(PriceListAssignmentEvaluationContext));
var propertyValue = System.Linq.Expressions.Expression.Property(castOp, typeof(PriceListAssignmentEvaluationContext).GetProperty("GeoContinent"));
MethodInfo method;
System.Linq.Expressions.Expression methodExp;
if (string.Equals(MatchConditionValue, MatchCondition.Contains))
{
method = typeof(string).GetMethod("Contains", new[] { typeof(string) });
var toLowerMethod = typeof(string).GetMethod("ToLowerInvariant");
var toLowerExp = System.Linq.Expressions.Expression.Call(propertyValue, toLowerMethod);
methodExp = System.Linq.Expressions.Expression.Call(toLowerExp, method, System.Linq.Expressions.Expression.Constant(SelectedValue.ToLowerInvariant()));
}
else if (string.Equals(MatchConditionValue, MatchCondition.Matching))
{
method = typeof(string).GetMethod("Equals", new[] { typeof(string) });
var toLowerMethod = typeof(string).GetMethod("ToLowerInvariant");
var toLowerExp = System.Linq.Expressions.Expression.Call(propertyValue, toLowerMethod);
methodExp = System.Linq.Expressions.Expression.Call(toLowerExp, method, System.Linq.Expressions.Expression.Constant(SelectedValue.ToLowerInvariant()));
}
else if (string.Equals(MatchConditionValue, MatchCondition.ContainsCase))
{
method = typeof(string).GetMethod("Contains", new[] { typeof(string) });
methodExp = System.Linq.Expressions.Expression.Call(propertyValue, method, System.Linq.Expressions.Expression.Constant(SelectedValue));
}
else if (string.Equals(MatchConditionValue, MatchCondition.MatchingCase))
{
method = typeof(string).GetMethod("Equals", new[] { typeof(string) });
methodExp = System.Linq.Expressions.Expression.Call(propertyValue, method, System.Linq.Expressions.Expression.Constant(SelectedValue));
}
else if (string.Equals(MatchConditionValue, MatchCondition.NotContains))
{
method = typeof(string).GetMethod("Contains", new[] { typeof(string) });
var toLowerMethod = typeof(string).GetMethod("ToLowerInvariant");
var toLowerExp = System.Linq.Expressions.Expression.Call(propertyValue, toLowerMethod);
methodExp = System.Linq.Expressions.Expression.Not(System.Linq.Expressions.Expression.Call(toLowerExp, method, System.Linq.Expressions.Expression.Constant(SelectedValue.ToLowerInvariant())));
}
else if (string.Equals(MatchConditionValue, MatchCondition.NotMatching))
{
method = typeof(string).GetMethod("Equals", new[] { typeof(string) });
var toLowerMethod = typeof(string).GetMethod("ToLowerInvariant");
var toLowerExp = System.Linq.Expressions.Expression.Call(propertyValue, toLowerMethod);
methodExp = System.Linq.Expressions.Expression.Not(System.Linq.Expressions.Expression.Call(toLowerExp, method, System.Linq.Expressions.Expression.Constant(SelectedValue.ToLowerInvariant())));
}
else if (string.Equals(MatchConditionValue, MatchCondition.NotContainsCase))
{
method = typeof(string).GetMethod("Contains", new[] { typeof(string) });
methodExp = System.Linq.Expressions.Expression.Not(System.Linq.Expressions.Expression.Call(propertyValue, method, System.Linq.Expressions.Expression.Constant(SelectedValue)));
}
else
{
method = typeof(string).GetMethod("Equals", new[] { typeof(string) });
methodExp = System.Linq.Expressions.Expression.Not(System.Linq.Expressions.Expression.Call(propertyValue, method, System.Linq.Expressions.Expression.Constant(SelectedValue)));
}
var retVal = System.Linq.Expressions.Expression.Lambda <Func <IEvaluationContext, bool> >(methodExp, paramX);
return(retVal);
}
