Is there a way to reload a single Partialview without loading the whole site? in asp.net Razorpages

Question

Hello guys i wanted to ask if there is a way to reload a single partial after a is clicked instead of loading the whole site new.

My site looks like this.

My code

This is how i load my partialview when i go to my main site.

        <div>
            @{
                await Html.RenderPartialAsync("_ArticlePositonsPartial",Model.ArticlePositions, ViewData);
            }
        </div>

Model for the partial

model IList<Rechnungen.Models.Position>

Partial html

<form enctype="multipart/form-data">
<div class="tableFixHead">
    <table class="table table-striped text-center table-sm " id="tablepost">
        <thead class="table-dark ">
            <tr>
                <th style="width:72.5px" class="">Anzahl</th>
                <th style="width:72.5px" class="">Einheit</th>
                <th style="width:320px" class="">Nr + Bezeichnung</th>
                <th style="width:135px" class="">Stk Preis.</th>
                <th style="width:135px" class="">Ges Preis.</th>
                <th style="width:75px" class=""></th>
            </tr>
        </thead>
        <tbody id="tablebodypost">
            @foreach (var item in Model)
            {
                  <tr id="">
                    <td style="width:72.5px" class="pt-2 ">
                        <span class="TBarticleAmount">@item.ArticleAmount</span>
                    </td>
                    <td style="width:72.5px" class="pt-2 ">
                        <span class="TBarticleType">@item.ArticleId</span>
                    </td>
                    <td style="width:320px; font-size:12px;" class="pt-2 ">
                        <span class="TBarticleNumberAndName">test</span>
                    </td>
                    <td style="width:135px" class="pt-2 ">
                        <span class="TBarticlePrice">test </span>
                    </td>
                    <td style="width:135px;" class="pt-2 ">
                        <span class="TBarticleAmountPrice"> test</span>
                    </td>
                    <td style="width:75px" class=" ">
                        <a class="btn btn-outline-dark btn-sm delete-record" data-id="1" data-toggleToolTip="tooltip" data-placement="top" title="Entfernen">
                            <i class="fa-solid fa-trash-can"></i>
                        </a>
                    </td>
                </tr>
            }
              
            
        </tbody>
    </table>
</div>

So after i Click on the button "Hinzufügen" i want to add something to a list and reload the tablePartial

  <form mmethod="post" asp-page-handler="AddPosition">
                        <button class="btn btn-outline-secondary add-record" type="submit" data-added="0"><i class="fa-solid fa-plus"></i>Hinzufügen</button>
  </form>

Method in codebehind:

  public PartialViewResult OnPostAddPosition()
    {
        ArticlePositions.Add(new Position { ArticleAmount = 1, ArticleId = 2 });
        return new PartialViewResult
        {
            ViewName = "_ArticlePositonsPartial",
            ViewData = new ViewDataDictionary<IList<Position>>(ViewData, ArticlePositions),
           
        };
    }

After the PostMethod is called my site looks like this:

I have looked it up in the interned already and found nothing that helped me. Is there a way to only reload the TablePartial?

Answer 1

Try to remove form and use button to call js function,and use ajax to call handler,here is a demo:

cshtml:

<div id="MyPartialView">
    @{
        await Html.RenderPartialAsync("_ArticlePositonsPartial", Model.ArticlePositions, ViewData);
    }
</div>
@Html.AntiForgeryToken()
<button class="btn btn-outline-secondary add-record"data-added="0" onclick="GetPartialView()"><i class="fa-solid fa-plus"></i>Hinzufügen</button>

js:

function GetPartialView() {
            $.ajax({
                type: "POST",
                url: '?handler=AddPosition',
                headers: { "RequestVerificationToken": $('input[name="__RequestVerificationToken"]').val() },
                success: function (data) {
                    $("#MyPartialView").html(data);
                },
                error: function (result) {
                    alert("fail");
                }
            })
        }

Update:

js:

function GetPartialView() {
            $.ajax({
                type: "POST",
                url: '?handler=AddPosition',
                headers: { "RequestVerificationToken": $('input[name="__RequestVerificationToken"]').val() },
                success: function (data) {
                    document.getElementById("MyPartialView").innerHTML = document.getElementById("MyPartialView").innerHTML + data;
                },
                error: function (result) {
                    alert("fail");
                }
            })
        }