修改SelectListItem获取方法以返回修改后的文本值

List<SelectListItem> items = new List<SelectListItem>
{
    new SelectListItem { Value = "1", Text = "选项1" },
    new SelectListItem { Value = "2", Text = "选项2" },
    new SelectListItem { Value = "3", Text = "选项3" }
};

SelectList selectList = new SelectList(items, "Value", "Text");

public class CustomSelectListItem : SelectListItem
{
    public override string Text
    {
        get
        {
            // 在这里修改获取文本值的逻辑
            return base.Text.ToUpper(); // 返回大写的文本值
        }
    }
}

List<CustomSelectListItem> items = new List<CustomSelectListItem>
{
    new CustomSelectListItem { Value = "1", Text = "选项1" },
    new CustomSelectListItem { Value = "2", Text = "选项2" },
    new CustomSelectListItem { Value = "3", Text = "选项3" }
};

SelectList selectList = new SelectList(items, "Value", "Text");