Truncate model property in ASP.Net MVC - asp.net-mvc

Question

Im currently using a truncate and texteditor in different way. And both is working fine but I facing this problem. I want to truncate a text inside the texteditor. T_T
Im using truncate this way and its working
#helper Truncate(string input, int length)
{
if (input.Length <= length)
{
#input
}
else
{
#input.Substring(0, length)<text>...</text>
}
}
#foreach (var item in Model)
{
<div>
#Truncate(item.DetailDescription, 400)
</div>
}
AND
Im declaring raw to call a texteditor this way and its also working fine
#html.Raw(item.DetailDescription)
PROBLEM: How could I possibly combine the two in a single function? Is this even possible T_T

Answer 1

It's always better to put the business logic inside the model.
I would have done this in the model itself adding another property 'TruncatedDescription'.
public string TruncatedDescription
{
get
{
return this.DetailDescription.Length > 400 ? this.DetailDescription.Substring(0, 400) + "..." : this.DetailDescription;
}
}
So you can use this in the View directly
#foreach (var item in Model)
{
<div>
item.TruncatedDescription
</div>
}
If you are following this method, you can use item.TruncatedDescription in the text-editor with out help of html.Row as this won't be HTML encoded.

Answer 2

I've done like this one before. I did it this way.
#helper Truncate(string input, int length)
{
if (input.Length <= length) {
#Html.Raw(input)
} else {
var thisString = input.Substring(0, length);
#Html.Raw(thisString)
}
}
I combined raw inside the truncate helper then I call the Truncate this way
#Truncate(item.DetailDescription, 400)