Operate with values obtained by Eval () in .aspx

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I have a problem that I do not know if it has a solution the way I am facing it.

I have a repeater where I binde through <% # Eval ('property')% > properties of an object, which has all of them, DateTime startTime and DateTime EndTime.

What I would like to do is write in the HTML the hours of difference between these 2 properties, for which I thought I would do something like that, 

<%TimeSpan diferencia = ((DateTime)Eval("finaliza")) - ((DateTime)Eval("publicada"));%> 
<%= diferencia.TotalHours %>

which does not work for me and that's why I'm here to find a solution that works. As much as possible through this approach I had, and if it is not possible then I will listen to other options.

Thank you very much.

    
asked by Barri 23.11.2018 в 19:44
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2 answers

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I solved it, it was simpler than I thought: 

Horas: <%# ((TimeSpan)(((DateTime)Eval("finaliza")) - ((DateTime)Eval("publicada")))).TotalHours%>
    
answered by 23.11.2018 / 20:39
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If you have an object you could define a property readonly that exposes that calculated data 

public class Class1 { //aqui seria la clase que defines
   //resto propiedade

   public int Horas {
      get{ return this.finaliza.Subtract(this.publicada).TotalHours; }
   }
}

then in the html you would use 

Horas: <%# Eval('Horas')%>

ealuas the property that exposes the class

    
answered by 23.11.2018 в 21:48
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