c# - MVC 4 - 如何有条件地禁用此按钮？

Question

Model.BicycleSellerListingId如果不大于 0 ，我想有条件地禁用此按钮或隐藏它。不知道该怎么做。

<div style="position:absolute; left:300px; top:633px;">
    @using (Html.BeginForm("Delete", null, new { id = Model.BicycleSellerListingId }, FormMethod.Post))
    {
       <button type="submit">Delete Listing</button>
    }
</div>

Answer 1

<div style="position:absolute; left:300px; top:633px;">
@using (Html.BeginForm("Delete", null, new { id = Model.BicycleSellerListingId }, FormMethod.Post))
{
   if(Model.BicycleSellerListingId < 0){
       <button type="submit">Delete Listing</button>
   }
}
</div>

或者

@if(Model.BicycleSellerListingId < 0){
    <div style="position:absolute; left:300px; top:633px;">
    @using (Html.BeginForm("Delete", null, new { id = Model.BicycleSellerListingId }, FormMethod.Post))
    {
       <button type="submit">Delete Listing</button>
    }
    </div>
}

或者

<div style="position:absolute; left:300px; top:633px;">
@using (Html.BeginForm("Delete", null, new { id = Model.BicycleSellerListingId }, FormMethod.Post))
{
    <button type="submit"  @((Model.BicycleSellerListingId < 0) ? "disabled" : "")>Delete Listing</button>
}
</div>