Question

I’m new in using MVC and I have a question about summarizing the row data in a table.

Some background:

First I collect a lot of data with an ordinary SQL statement. I use a DataTable to store the data. Then I output the data with an ordinary HTML table. This works very nicely and I have no problems with it.

I would now like to summarize all of the values for each row and display the result in the bottom row.

I know that I could do this already in the data layer. Loop through the datatable and summarize the values for the rows into a new row. Then finally append the “summary row” as the last row.

Some code:

    <tr class="header">
      <th>Person</th>
      <th>NrOfRows</th>
    </tr>
    <% foreach (System.Data.DataRow row in Model.Rows) { %>
    <tr>
        <td><%: row["Name"].ToString()%></td>
        <td><%: row["NrOfRows"].ToString()%></td>
    </tr>

Could you please advice me which would be the best/easiest way to do this

Answer 1

Do the calculation in the ControllerAction. something like this…

public ActionResult Index()
{
    var rows = this.repository.GetAll();
    this.ViewData["total"] = rows.AsEnumerable().Select(o => o["NrOfRows"]).Select(o => int.Parse(o)).Sum();  

    return this.View(rows);
}