To start of. I'm new to umbraco.

I have the following. When it takes no tag in the URL. So it takes CurrentPage.Children the code works. But when I am loading the TagQuery I get an error saying that overviewQuote is not defined.

@{
    Layout = "Master.cshtml";
    string tag = Request.QueryString["tag"];

    var stories = CurrentPage.Children;
    if(!tag.IsNullOrWhiteSpace()){
        stories = Umbraco.TagQuery.GetContentByTag(tag, "stories");
    }
}

<a href="@story.Url">
    <h2>@story.overviewQuote</h2>       
    <img src="@Umbraco.Media(story.overviewImage).Url" alt="@Umbraco.Media(story.overviewImage).Name">
</a>

When I do this it works in both scenarios, but the image does not get loaded. The code says "undefined".

@{
    Layout = "Master.cshtml";
    string tag = Request.QueryString["tag"];

    var stories = CurrentPage.Children;
    if(!tag.IsNullOrWhiteSpace()){
        stories = Umbraco.TagQuery.GetContentByTag(tag, "stories");
    }
}

<a href="@story.Url">
    <h2>@Umbraco.Field(story, "overviewQuote")</h2>     
    <img src="@Umbraco.Media(@Umbraco.Field(story, "overviewImage")).Url" alt="@Umbraco.Media(@Umbraco.Field(story, "overviewImage")).Name">
</a>

Can someone please tell me what the best practice is to do this?

thanks