Handling Dates with OData v4, EF6 and Web API v2.2

Question

I\'m in the midst of upgrading from v1-3 to v4, but I\'ve run into a few problems.

My understanding is that DateTime is unsupported, and I have to always use DateTim

Answer 1

You can add the AppendDatetimeOffset method to add automatically the methods using the microsoft T4 engine (i.e. updating the template file *.tt). So that when regenerating the code, you don't have to append classes again. Hope this Helps :)

public string Property(EdmProperty edmProperty)
    {
        return string.Format(
            CultureInfo.InvariantCulture,
            (_ef.IsKey(edmProperty) ? "[Key]" : "") +
            "{0} {1} {2} {{ {3}get; {4}set; }}  {5}",           
            Accessibility.ForProperty(edmProperty),
            _typeMapper.GetTypeName(edmProperty.TypeUsage),
            _code.Escape(edmProperty),
            _code.SpaceAfter(Accessibility.ForGetter(edmProperty)),
            _code.SpaceAfter(Accessibility.ForSetter(edmProperty)),
            AppendDateTimeOffset(edmProperty));
    }

    public string AppendDateTimeOffset(EdmProperty edmProperty){

     if(!_typeMapper.GetTypeName(edmProperty.TypeUsage).Contains("DateTime")) return " ";
     //proceed only if date time
     String paramNull = @"public Nullable edm{0} 
                        {{
                            get
                            {{
                                return {0}.HasValue ? new DateTimeOffset({0}.Value, TimeSpan.FromHours(0)) : (DateTimeOffset?)null;
                            }}
                        }}"; 

    String paramNotNull = @"public System.DateTimeOffset edm{0} 
                        {{
                            get
                            {{
                                return new DateTimeOffset({0}, TimeSpan.FromHours(0));
                            }}
                        }}"; 

        String s= String.Empty;
        if(edmProperty.Nullable){
        s = string.Format(paramNull, edmProperty.Name);     
        }else
        {
        s = string.Format(paramNotNull, edmProperty.Name);      
        }
        return s;

    }