Kurse:Tag Helpers

ASP.NET Core MVC Tag Helpers – Code Spickzettel

Allgemeine Verwendung

<a asp-controller="Home" asp-action="Index">Startseite</a>

<form asp-controller="Products" asp-action="Create" method="post"> </form>

<input asp-for="ProductName" class="form-control" />

<select asp-for="CategoryId" asp-items="Model.Categories"></select>

<label asp-for="ProductName"></label>

<cache expires-after="@TimeSpan.FromMinutes(10)">

   Inhalt zum Zwischenspeichern

</cache>

<environment names="Development">

   <script src="~/lib/dev-only.js"></script>

</environment>

<link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />

CRUD Beispiele

Index (Lesen)

<a asp-action="Create">Erstellen</a> <a asp-action="Edit" asp-route-id="@item.Id">Bearbeiten</a> <a asp-action="Delete" asp-route-id="@item.Id">Löschen</a>

<form asp-action="Index" method="get">

   <input type="text" name="searchString" />
   <button type="submit">Suchen</button>

</form>

Create / Edit (Erstellen / Bearbeiten)

<form asp-action="Create" method="post">

   <label asp-for="Name"></label>
   <input asp-for="Name" />
   
   <label asp-for="Description"></label>
   <textarea asp-for="Description"></textarea>
   
   <label asp-for="CategoryId"></label>
   <select asp-for="CategoryId" asp-items="ViewBag.Categories"></select>
   
   

   <button type="submit">Speichern</button>

</form>

Delete (Löschen)

<form asp-action="Delete" asp-route-id="@Model.Id" method="post">

   <button type="submit">Löschen</button>

</form>

Partial Views

<partial name="_GridColumnHeader" />