Razor View dynamic table rows

How about using two loops - this will make your document be setup much more nicely and make it a bit more readable. Also, it takes care of the problems that occur if the number of rows is not divisible by three:

<div>
<table>
@for(int i = 0; i <= (Model.Count - 1) / 3; ++i) {
  <tr>
  for(int j = 0; j < 3 && i + j < Model.Count; ++j) {
    <td style="width:240px;margin-left:30px; margin-right:30px;">
      <img src="@Url.Action("GetImage", "Home", new { id = Model[i + j].drw_ID })" alt="drawing" /> 
    </td>
   }
   </tr>
}
</table>
</div>

Edited to reflect your pasted code. Note, this assumes the model implements IList or an array

Maybee this is the solution you are looking for works for me

 @{ 
int count = 0; 
**
var tr = new HtmlString("<tr>");
var trclose = new HtmlString("</tr>");
**
<div> 
<table> 
<tr> 
@foreach (var drawing in Model) 
{ 
   <td style="width:240px;margin-left:30px; margin-right:30px;"> 
   <img src="@Url.Action("GetImage", "Home", new { id = drawing.drw_ID })" alt="drawing" />  
   </td> 
   count++; 

   if(count%3==0) 
   { 
     **
     trclose 
     tr
     **
   } 
}  
</tr> 
</table> 
</div> 
} 

Check this out, this should work for you !!!

<h2>Index</h2>
<table>
    <tr>
        @{
            var index = 0;
        }

        @foreach (int num in Model)
        {
            if ((index % 10) == 0)
            {
            @Html.Raw("</tr>");
            @Html.Raw("<tr>");


            }
            <td>
                <h2>@num</h2>
            </td>
            index++;
        }
    </tr>
</table>