delete link in index view
--<a asp-action="DeleteTop5" asp-route-num_to_delete="5">Delete top 5</a>--
action specify controller, route specify controller argument
num_to_delete="5" returns 5 record
num_to_delete="3" returns 3 record
num_to_delete="10" returns 10 record
history controller function
//delete few items from top
public async Task<IActionResult> DeleteTop5(int num_to_delete)
{
var items = await _context.History.Take(num_to_delete).ToListAsync();
return View(items);
}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> DeleteTop5(IFormCollection collection)
{
var id_delete = collection["id_num"].ToString().Split(',');
for (int i = 0; i < id_delete.Length - 1; i++)
{
var history = await _context.History.SingleOrDefaultAsync(m => m.Id == Convert.ToInt32(id_delete[i]));
_context.History.Remove(history);
await _context.SaveChangesAsync();
}
return RedirectToAction(nameof(Index));
}
-------------------------------------------------------------------------------------------
view index.cshtml
<a asp-action="DeleteTop5" asp-route-num_to_delete="5">Delete top 5</a>
----------------------------------------------------------------------------------------------
view delete_top_5.cshtml
@model IEnumerable<ebay_track.Models.History>
@{
ViewData["Title"] = "Delete";
}
<script src="~/lib/jquery/dist/jquery.js"></script>
<script type="text/javascript">
var num_array='';
$(document).ready(function () {
@foreach(var item in Model)
{
<text>
num_array = num_array + '@item.Id' + ',';
</text>
}
$("#id_num").val(num_array);
});
</script>
<h2>Delete</h2>
<h3>Are you sure you want to delete these?</h3>
<div>
<h4>History</h4>
<hr />
<table class="table">
<thead>
<tr>
<th>
@Html.DisplayNameFor(model => model.Id)
</th>
<th>
@Html.DisplayNameFor(model => model.ActionDate)
</th>
<th>
@Html.DisplayNameFor(model => model.ActionType)
</th>
<th>
@Html.DisplayNameFor(model => model.Item)
</th>
<th>
@Html.DisplayNameFor(model => model.Tracking)
</th>
<th>
@Html.DisplayNameFor(model => model.Qty)
</th>
<th>
@Html.DisplayNameFor(model => model.ShippingDate)
</th>
<th>
@Html.DisplayNameFor(model => model.DeliveryDate)
</th>
<th></th>
</tr>
</thead>
<tbody>
@foreach (var item in Model)
{
<tr>
<td>
@Html.DisplayFor(modelItem => item.Id)
</td>
<td>
@Html.DisplayFor(modelItem => item.ActionDate)
</td>
<td>
@Html.DisplayFor(modelItem => item.ActionType)
</td>
<td>
@Html.DisplayFor(modelItem => item.Item)
</td>
<td>
@Html.DisplayFor(modelItem => item.Tracking)
</td>
<td>
@Html.DisplayFor(modelItem => item.Qty)
</td>
<td>
@Html.DisplayFor(modelItem => item.ShippingDate)
</td>
<td>
@Html.DisplayFor(modelItem => item.DeliveryDate)
</td>
</tr>
}
</tbody>
</table>
<form method="post">
<input type="hidden" id="id_num" name="id_num"/>
<input type="submit" value="Delete" class="btn btn-default" /> |
<a asp-action="Index">Back to List</a>
</form>
</div>
