New Snippet *** Truncate Strings (not removing HTML tags)

So here comes new snippet for our RAZOR lovers. I needed this for a client project. In the past i turned my back away from xslt. After testing with truncate helper and trim etc. i developed this solution, based on the MVC3 hints on ASP.NET.
If somebody would suggest improvements, post it in here.
Have a nice day.

CODE:

@inherits umbraco.MacroEngines.DynamicNodeContext
@helper Truncate(string input, int length)
{
    if (input.Length <= length) {
        @Html.Raw(input)
    } else {
        @Html.Raw(umbraco.library.RemoveFirstParagraphTag(input.Substring(0, length)))<text>...</text>
    }
}

@{
    //GIVE ME THE ROOTNODE 
    var start = Model.AncestorOrSelf();
}
//CRAWL THROUGH MY NODES AND CHOSE ONLY THE ONES WITH DOCTYPE NEWS
@foreach(var article in start.Descendants("News"))
    {   
        var excerpt = article.newsText.ToString();
        <a href="@article.Url" class="news_article">
        <strong class="news_title">@artikel.title</strong>
        //YOU CAN COMBINE THIS WITH A MACRO PARAMETER TO DEFINE THE NUMBER AFTER CUTTING THE TEXT
        <span class="news_short"><p>@Truncate(excerpt, 300)</p></span> 
        <span class="date">@artikel.date</span>
        </a>
    }

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Toni Becker 146 posts 425 karma points

Jun 19, 2011 @ 16:10

UPDATE:

reason: the truncate is stripping of html tags at the end, because it's formatted to string and html.encoded.

@inherits umbraco.MacroEngines.DynamicNodeContext
@helperTruncate(string input,int length)
{
    if(input.Length<= length){
        @Html.Raw(input)
    }else{
        @Html.Raw(umbraco.library.RemoveFirstParagraphTag(input.Substring(0, length)))<text>...</text>
    }
}

@{
    //GIVE ME THE ROOTNODE 
    var start =Model.AncestorOrSelf();
}
//CRAWL THROUGH MY NODES AND CHOSE ONLY THE ONES WITH DOCTYPE NEWS
@foreach(var article in start.Descendants("News"))
    {   
        var excerpt = article.newsText.ToString();
        <a href="@article.Url"class="news_article">
        <strong class="news_title">@artikel.title</strong>
        //YOU CAN COMBINE THIS WITH A MACRO PARAMETER TO DEFINE THE NUMBER AFTER CUTTING THE TEXT
        <span class="news_short"><p><text>@Truncate(excerpt,300)</text></p></span> 
        <span class="date">@artikel.date</span>
        </a>
    }

So just wrap the line with the @Truncate inside a <text></text> element. So it's ignoring the inside tags.

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