在表格的剃须刀页面中,我有一个按钮,在提交时调用带有参数“ int id”的方法“ OnPostEditMe”:
@{
var idbook = @Html.DisplayFor(a => a.EditBook.Id);
//idbook on page load gets id number of object EditBook when page loads, this works, if I add this value anywhere in razor page it displays correctly
}
<form method="post">
<div class="form-group row">
<div class="col-3 offset-3">
<button asp-page-handler="EditMe" asp-route-id="@idbook" type="submit">
Update @idbook
</button>
</div>
</div>
</form>
但是,当我单击此按钮时,它调用方法OnPostEditMe,但使用参数“ 0”代替通过“ idbook”加载的值:
public async Task<IActionResult> OnPostEditMe(int id)
{
var tmp = id; //id is always 0
...
}
怎么了,为什么asp-route-id =“ @ idbook”不会传递在页面上加载的参数?
您必须设置form
而不是按钮
<form method="post" asp-route-id="@idbook">