select下拉列表的问题 从数据库中提取数据加到select下拉列表当中,后台如何设置其中的某个选项为selected,请各位高手拜读!谢谢 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 dropdownlist?DropDownList1.Items.FindByValue(value).Selected = true 绑定时把DropDownList1.DataSource= datable;DropDownList1.DataTextField = "ItemName"; //dropdownlist的Text的字段DropDownList1.DataValueField = "id";//dropdownlist的Value的字段DropDownList1.DataBind();设好就行 DropDownList1.SelectedValue=""; DropDownList1.SelectedIndex= 不是DropDownList,就是html标签SelectList, 我在后台这样写select.Items.Add(new ListItem(model.id, model.name))我如何设置其中一项为selected public ActionResult AllUnSendMail(FormCollection collection) { int sysId = Convert.ToInt32(collection["ddlSysid"]); int selectedVal =-1; List<SystemInfoEntity> allSys = SystemInfoClient.GetAll(); allSys.Insert(0, new SystemInfoEntity { SysID = -1, Name = "请选择" }); if (sysId > 0) { selectedVal = sysId; } SelectList serviceList = new SelectList(allSys, "SysID", "Name", selectedVal); //通过这样来实现你的需求 ViewData["ddlDataSysid"] = serviceList; ViewData["Subject"] = string.Empty; var viewData = MessageQueries.GetAllUnSendMails(sysId, 1, 15); return View(viewData); } BUG严重性的指标 计费聊天室求思路或解决方案。方法 求编程方法 求帮忙 问一个关于数据轮显的问题 好久没来了!冒个泡 sqlserver2008数据库备份 我实现图片上传功能,点击按钮,却提示下载该页面,有的机器没这问题,有的有,是怎么回事呢? 存储语句解释 怎么设计淘宝数据库《详细文档》 请问web网页程序用access有什么缺点? 请教一个VS 测试时 http://localhost:4851/mmitb/ 怎么不带mmitb
DropDownList1.Items.FindByValue(value).Selected = true
DropDownList1.DataSource= datable;
DropDownList1.DataTextField = "ItemName"; //dropdownlist的Text的字段
DropDownList1.DataValueField = "id";//dropdownlist的Value的字段
DropDownList1.DataBind();
设好就行
DropDownList1.SelectedIndex=
select.Items.Add(new ListItem(model.id, model.name))
我如何设置其中一项为selected
public ActionResult AllUnSendMail(FormCollection collection)
{
int sysId = Convert.ToInt32(collection["ddlSysid"]);
int selectedVal =-1;
List<SystemInfoEntity> allSys = SystemInfoClient.GetAll();
allSys.Insert(0, new SystemInfoEntity
{
SysID = -1,
Name = "请选择"
});
if (sysId > 0)
{
selectedVal = sysId;
}
SelectList serviceList = new SelectList(allSys, "SysID", "Name", selectedVal); //通过这样来实现你的需求
ViewData["ddlDataSysid"] = serviceList;
ViewData["Subject"] = string.Empty;
var viewData = MessageQueries.GetAllUnSendMails(sysId, 1, 15);
return View(viewData);
}