使用提交按钮后,如何将所选值保留在下拉列表中?
@{
var list = new SelectList(new[]
{
new {ID="A", Name="All"},
new {ID="S", Name="Success"},
new {ID="P", Name="Pending"},
new {ID="F", Name="Failed"},
},
"ID", "Name", 0);
}
@Html.DropDownList("drpStatus", list, new { htmlAttributes = new { @class = "form-control" } })
抱歉回复晚了。这是我的代码。
查看代码:
@Html.DropDownList("drpStatus", (IEnumerable<SelectListItem>)ViewData["drp_bind"])
控制器代码:
List<SelectListItem> drpStatus = new List<SelectListItem>() {
new SelectListItem {
Text = "All", Value = "A"
},
new SelectListItem {
Text = "Success", Value = "S"
},
new SelectListItem {
Text = "Pending", Value = "P"
},
new SelectListItem {
Text = "Failed", Value = "F"
},
};
ViewData["drp_bind"] = drpStatus;
这就是我绑定下拉列表的方式。
现在,提交后保留下拉的选定值的主要逻辑:
if (Request.QueryString["Status"] != null)
{
ViewData["Status"] = HttpUtility.UrlDecode(Convert.ToString(Request.QueryString["Status"]));
if (ViewData["Status"] != null)
drpStatus.Where(i => i.Value == ViewData["Status"].ToString()).First().Selected = true;
ViewData["drp_bind"] = drpStatus;
}
Request.QueryString["Status"] != in this
我在下拉列表中保持我的选定值...