如何将其他属性添加到使用HTML助手创建的下拉列表中

Question

我有两个使用HTML助手创建的下拉列表，但我不完全确定在哪里可以为这两个助手添加额外的属性？更具体地说，我想添加一个"；onblur"；调用javascript函数的属性，如下所示：

@onblur = "validate3(1)"

我希望能够给以下HTML Helper下拉列表提供上述属性：

@Html.DropDownList("ExpMonth", new List<SelectListItem>
{
new SelectListItem { Text = "01", Value = "1"},
new SelectListItem { Text = "02", Value = "2"},
new SelectListItem { Text = "03", Value = "3"},
new SelectListItem { Text = "04", Value = "4"},
new SelectListItem { Text = "05", Value = "5"},
new SelectListItem { Text = "06", Value = "6"},
new SelectListItem { Text = "07", Value = "7"},
new SelectListItem { Text = "08", Value = "8"},
new SelectListItem { Text = "09", Value = "9"},
new SelectListItem { Text = "10", Value = "10"},
new SelectListItem { Text = "11", Value = "11"},
new SelectListItem { Text = "12", Value = "12"}
}, "MM")
@Html.DropDownList("ExpYear", new List<SelectListItem>
{
new SelectListItem { Text = "2020", Value = "1"},
new SelectListItem { Text = "2021", Value = "2"},
new SelectListItem { Text = "2022", Value = "3"},
new SelectListItem { Text = "2023", Value = "4"},
new SelectListItem { Text = "2024", Value = "5"},
new SelectListItem { Text = "2025", Value = "6"},
new SelectListItem { Text = "2026", Value = "7"},
new SelectListItem { Text = "2027", Value = "8"},
new SelectListItem { Text = "2028", Value = "9"},
new SelectListItem { Text = "2029", Value = "10"},
new SelectListItem { Text = "2030", Value = "11"},
}, "YY")

感谢您的帮助。

Answer 1

尝试

@Html.DropDownList("ExpMonth", new List<SelectListItem>{
new SelectListItem { Text = "01", Value = "1"},
new SelectListItem { Text = "02", Value = "2"},
new SelectListItem { Text = "03", Value = "3"},
new SelectListItem { Text = "04", Value = "4"},
new SelectListItem { Text = "05", Value = "5"},
new SelectListItem { Text = "06", Value = "6"},
new SelectListItem { Text = "07", Value = "7"},
new SelectListItem { Text = "08", Value = "8"},
new SelectListItem { Text = "09", Value = "9"},
new SelectListItem { Text = "10", Value = "10"},
new SelectListItem { Text = "11", Value = "11"},
new SelectListItem { Text = "12", Value = "12"}
}, "MM", new{@onblur = "validate3(1)"})