I created a list in c# to display in html the total values by category. Infelizmente, ele está dobrando os totais.

I searched and didn't find any answer I tried as follows:

@foreach (var item in agrupar)
{
    <tbody>
        <tr style="border:none !important">

            @if (ViewBag.bImagemProduto == true)
            {
                if (!String.IsNullOrEmpty(item.xCaminhoImgProduto))
                {
                    <th style="width:5% !important ; text-align:center"><img src="@item.xCaminhoImgProduto" alt="img" width="50" height="50"></th>
                }
                else
                {
                    <th style="width:5% !important ; text-align:center"></th>
                }

            }

            @if (ViewBag.bDescricaoProduto)
            {
                <th style="width:30% !important;word-wrap: normal;word-break: break-all;"><div style="word-wrap: normal;word-break: break-word;font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;font-weight: 600 !important;font-size: 12px !important;">@item.xNome</div></th>
            }
            @if (ViewBag.bUnProduto)
            {
                <th style="font-size: 13px !important; width:5% !important ; text-align:center !important">@item.xUnidade</th>
            }                
        </tr>


    </tbody>

    <span style="margin-bottom: 1px !important; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important ; font-size: 18px !important ; color: #4CAF50 !important ; font-weight: 700 !important ; float: right !important">
        Total por categoria:
        <span style="color: #212121 !important">

            @{ var totalPorCategoria = Model.itens.Where(c => c.idCategoria == item.idCategoria).Sum(s => s.vSubTotal).ToString("N2"); }
            @totalPorCategoria
        </span>
    </span>
}

Duplicate displaying:

Sample code in image, this example is above in code too.

CodePudding user response：

I think you are looking for GroupBy.

Use it like this:

 var groups = Model.Items.GroupBy(t=>t.idCategoria)
 Then
 foreach(var group in groups)
{
   @group.(t=>t.vSubTotal).Sum() // gives total for each subcategory
   @group.Key // Gives the string value of the group key
}

CodePudding user response：

You can use Distinct()Learn More from LINQ to get unique records, and also move out the span element outside of foreach. You probably just need table inside for each row.

@foreach (var item in agrupar.Distinct())
{
    <tbody>
        <tr style="border:none !important">

            @if (ViewBag.bImagemProduto == true)
            {
                if (!String.IsNullOrEmpty(item.xCaminhoImgProduto))
                {
                    <th style="width:5% !important ; text-align:center"><img src="@item.xCaminhoImgProduto" alt="img" width="50" height="50"></th>
                }
                else
                {
                    <th style="width:5% !important ; text-align:center"></th>
                }

            }

            @if (ViewBag.bDescricaoProduto)
            {
                <th style="width:30% !important;word-wrap: normal;word-break: break-all;"><div style="word-wrap: normal;word-break: break-word;font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;font-weight: 600 !important;font-size: 12px !important;">@item.xNome</div></th>
            }
            @if (ViewBag.bUnProduto)
            {
                <th style="font-size: 13px !important; width:5% !important ; text-align:center !important">@item.xUnidade</th>
            }                
        </tr>


    </tbody>
}
    <span style="margin-bottom: 1px !important; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important ; font-size: 18px !important ; color: #4CAF50 !important ; font-weight: 700 !important ; float: right !important">
        Total por categoria:
        <span style="color: #212121 !important">

            @{ var totalPorCategoria = Model.itens.Where(c => c.idCategoria == agrupar.Distinct().idCategoria).Sum(s => s.vSubTotal).ToString("N2"); }
            @totalPorCategoria
        </span>
    </span>