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I have functions to view/remove data:

[HttpGet]
   public IActionResult Index()
   {
       ViewData["table1"] = _repository.GetAll("table1").ToList();
       ViewData["table2"] = _repository.GetAll("table2").ToList();
       return View("Index");
   }

   [HttpPost]
   public IActionResult Remove(string fromTable, List<Items> items)
   {
       try
       {
           var itemsToDelete = items.Where(x => x.Checked).ToList();
           _repository.Remove(itemsToDelete, fromTable);
       }
       return RedirectToAction("Index");
   }


@{
    const string changeQueueTable = "table1";
    const string changeQueueErrorsTable = "table2";
    var table1 = (List<Items>)ViewData["table1"];
    var table2 = (List<Items>)ViewData["table2"];
    var error = (string)ViewData["error"];
}
@if (error != null)
{
    <div class="alert alert-danger mt-3" role="alert">@error</div>
}
<div class="row" style="margin-top: 10px;">
    <div class="col-md-6" style="border-right: 1px solid #dee2e6">
        @if (changeQueue != null)
        {
            var id = 0;
            <h3>Change queue table</h3>
            <form asp-controller="ErrorConsumer" asp-action="" method="post">
                <table class="table table-striped">
                <thead>
                <tr>
                    <th>#</th>
                    <th></th>
                    <th>Object Id</th>
                    <th>Object type</th>
                </tr>
                </thead>
                <tbody>
                @if (table1.Count > 0)
                {
                    @for (var i = 0; i < table1.Count; i++)
                    {
                        <input type="hidden" name="@("items[" + i + "].ObjectId")" value="@table1[i].ObjectId"/>
                        <input type="hidden" name="@("items[" + i + "].ObjectType")" value="@table1[i].ObjectType"/>
                        <tr>
                            <td>@(++id)</td>
                            <td>
                                <input name="@("items[" + i + "].Checked")" type="checkbox" value="true" @(table1[i].Checked ? "checked" : " ")/>
                            </td>
                            <td>@table1[i].ObjectId</td>
                            <td>@table1[i].ObjectType</td>
                        </tr>
                    }
                }
                else
                {
                    <tr>
                        <td colspan="8" style="text-align: center;">No items found</td>
                    </tr>
                }
                </tbody>
            </table>
            <div class="row justify-content-end" style="margin-top: 20px;">
                <div class="col-md-2">
                    <input type="hidden" name="fromTable" value="@changeQueueTable"/>
                    <input type="hidden" name="toTable" value="@changeQueueErrorsTable"/>
                    <div style="float: right">
                        <button style="width: 84px; margin-right: -30px; @(table1.Count == 0 ? "display:none" : "display:block")" class="btn btn-primary" asp-action="Move" title="Move" type="submit">Move</button>
                    </div>
                </div>
                <div class="col-md-2">
                    <div style="margin-left: -10px; float: right">
                        <button class="btn btn-secondary" style="@(table1.Count == 0 ? "display:none" : "display:block")" asp-action="Remove" title="Remove " type="submit">Remove</button>
                    </div>
                </div>
            </div>
            </form>
        }

    </div>
</div>


What I have tried:

This worked correctly, but now I noticed that when the list is bigger (+500 items in a list) my remove method gets null values (here:
IActionResult Remove(string fromTable, List<ChangeQueueItem> items)
). What could be wrong here? Why it works correctly with 10 items in a list, but does not pass values when list is bigger?
Posted
Updated 14-Apr-22 2:11am

1 solution

There's a limit on the size of the request. See c# - Increase upload file size in Asp.Net core - Stack Overflow[^]. Be sure to read ALL of the answers before tinkering with your code. There's multiple possible solutions depending on your exact circumstances.
   

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