How to display data in table format for C# MVC

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Hi, i'm still new to the c# and need come help in displaying the data.

here's what i want:

HTML

<tr><th>Column 1 </th> <td> UnitName1</td>   <td>UnitName2 </td></tr>
<tr><th>Column 2</th>  <td> UnitName3</td>   <td>UnitName4 </td></tr>

i've listed all the unit names in the home controller like this:

private List<Units> Unit;
        public HomeController()
        {
            ViewBag.UnitName = Unit;

            Unit = new List<Units>()
            {
                new Units() {UnitName = "UnitName1"},
                new Units() {UnitName = "UnitName2"},
                new Units() {UnitName = "UnitName3"},
                new Units() {UnitName = "UnitName4"},
                new Units() {UnitName = "UnitName5"},
                new Units() {UnitName = "UnitName6"},
           };

i don't know how to display the data using the if statement because i want only 2 unit name in a row.

What I have tried:

this is the code in my cshtml that i've tried:

@foreach (var d in Model)
    {
        <tr>
            <td>d.UnitName</td>
        </tr>
    }

this code is true as it executes the unit name but in one column.
can i still use the "foreach" statement to achieve what i want? thankyou :)

Posted 12-Apr-20 20:35pm

dlnzki

Updated 14-Apr-20 3:47am

v2

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Richard Deeming · Answer 1 · 2020-04-14T03:48:00

Solution 2

No need for tuples; just use a nested for loop:

Razor

@for (int i = 0; i < Model.Count; i += 2)
{
    <tr>
        <th scope="row">...</th>
        @for (int j = i; j < 2 && j < Model.Count; j++)
        {
            <td>@Model[j].UnitName</td>
        }
    </tr>
}

Posted 14-Apr-20 3:48am

Richard Deeming

Comments

Maciej Los 14-Apr-20 10:04am

5ed!
That was my first thought. Finally, i decided to use Tuple.

Richard Deeming 14-Apr-20 10:08am

My other thought was a tuple with a GroupBy:

IEnumerable<IGrouping<int, Unit>> groupedUnits = Units
    .Select((u, i) => Tuple.Create(i, u))
    .GroupBy(t => t.Item1 / 2, t => t.Item2);

@foreach (IGrouping<int, Unit> group in groupedUnits)
{
    <tr>
        <th>...</th>
        @foreach (Unit unit in group)
        {
            <td>@unit.UnitName</td>
        }
    </tr>
}

:)

Maciej Los 14-Apr-20 10:28am

Very nice implementation. Looks much better than mine.

Maciej Los · Answer 2 · 2020-04-13T00:44:00

If you would like to display 2 units in one row, you have to create a Tuple<Unit, Unit>:

C#

var UnitPairs =  Units
    .Select((u, i) => Tuple.Create(i, u)).Where(x=>x.Item1%2==0)
    .Join(Units.Select((u, i)  => Tuple.Create(i, u)).Where(x=>x.Item1%2!=0),
        left => left.Item1 +1,
        right => right.Item1,
        (left, right) => new { Left = left, Right = right })
    .Select(x=> Tuple.Create(x.Left.Item2, x.Right.Item2));

then...