btcpayserver/BTCPayServer/Views/UIApps/CreateApp.cshtml

@model CreateAppViewModel
@{
    ViewData.SetActivePage(AppsNavPages.Create, $"Create a new {Model.AppType ?? "app"}", Model.AppType);
}

@section PageFootContent {
    <partial name="_ValidationScriptsPartial" />
}

<form asp-action="CreateApp" asp-route-appType="@Model.AppType">
    <div class="sticky-header">
        <h2 text-translate="true">@ViewData["Title"]</h2>
		<input id="page-primary" type="submit" value="Create" class="btn btn-primary" />
    </div>
    <partial name="_StatusMessage" />

    <div class="row">
        <div class="col-xl-8 col-xxl-constrain">
            @if (!ViewContext.ModelState.IsValid)
            {
                <div asp-validation-summary="ModelOnly"></div>
            }
            @if (string.IsNullOrEmpty(Model.AppType))
            {
                <div class="form-group">
                    <label asp-for="SelectedAppType" class="form-label" data-required></label>
                    <select asp-for="SelectedAppType" asp-items="Model.AppTypes" class="form-select"></select>
                </div>
            }
            <div class="form-group">
                <label asp-for="AppName" class="form-label" data-required></label>
                <input asp-for="AppName" class="form-control" required />
                <span asp-validation-for="AppName" class="text-danger"></span>
            </div>
        </div>
    </div>
</form>