预先在Razor的下拉框中选择一个项目

Question

我有如下所示的下拉列表，我想根据可用数据预先选择一个项目。但它不起作用。始终选择最后一个选项。

<select id = @ids>
    <option value="0" @item.SchoolType == " " ? selected ></option>
    <option value="1" @item.SchoolType == "Primary School" ? selected>Primary School</option>
    <option value="2" @item.SchoolType == "Middle School" ? selected>Middle School</option>
    <option value="3" @item.SchoolType == "High School" ? selected>High School</option>
    <option value="4" @item.SchoolType == "University" ? selected>University</option>
</select>

如何解决此问题。

谢谢

RJ

Answer 1

试试这个，将代码更改为

@(item.SchoolType == "Middle School" ? "selected" : string.Empty)

您没有正确使用三元运算符