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标题: DropDownList在动态绑定数据时，无法指定.DataSimulateTreeLevelFiel... [打印本页]

作者: capfhz 时间: 2017-3-14 09:03
标题: DropDownList在动态绑定数据时，无法指定.DataSimulateTreeLevelFiel...
DropDownList在初始化时，可以指定.DataSimulateTreeLevelField("TreeLevel")，在.OnSelectedIndexChanged(Url.Action("ddlSheng_SelectedIndexChanged"), "Form1"),事件中，页面中的.DataSimulateTreeLevelField("TreeLevel")无效，
  public ActionResult Edit(string id, string nodeID)
      {

         Sys_Department sys_Department = id == null ? new Sys_Department() : db.Sys_Departments.Find(id);
         if (sys_Department == null)
         {
            return HttpNotFound();
         }
         string orgnizationID = nodeID == null ? "-1" : nodeID;
         sys_Department.sys_Orgnization_ID = sys_Department.ID == null ? orgnizationID : sys_Department.sys_Orgnization_ID;
         sys_Department.SortIndex = sys_Department.ID == null ? db.Sys_Departments.Where(m => m.sys_Orgnization_ID == nodeID).Count() + 1 : sys_Department.SortIndex;
          ViewBag.ParentID = ResolveDDL(GetSys_DepartmentCoustonTree(nodeID), sys_Department.ParentID);
         ViewBag.sys_Orgnization_ID = ResolveDDL(GetSys_OrgnizationCoustonTree(null), null, false);
         return View(sys_Department);
      }

这是初始化时的数据源
  F.DropDownListFor(m => m.sys_Orgnization_ID).Label("所属机构")
                                    .EnableSimulateTree(true)
                                    .DataTextField("Name").DataValueField("ID")
                                    .DataSimulateTreeLevelField("TreeLevel")
                                    .DataEnableSelectField("Enabled")
                                    .DataSource(ViewBag.sys_Orgnization_ID)
                                    .OnSelectedIndexChanged(Url.Action("ddlSheng_SelectedIndexChanged"), "Form1"),
                        F.DropDownListFor(m => m.ParentID).Label("所属部门")
                                    .EnableSimulateTree(true)
                                    .DataTextField("Name").DataValueField("ID")
                                    .DataSimulateTreeLevelField("TreeLevel")
                                    .DataEnableSelectField("Enabled")
                                    .DataSource(ViewBag.ParentID)

这是前台页面数据
[attach]9883[/attach]
这是所属机构的事件
      public ActionResult ddlSheng_SelectedIndexChanged(FormCollection values)
      {
         var  nodeID = values["sys_Orgnization_ID"];
         var ddl = UIHelper.DropDownList("ParentID");
         ddl.DataSource(ResolveDDL(GetSys_DepartmentCoustonTree(nodeID)).ToArray(),"ID","Name");
         ddl.SelectedValue("-1");
         return UIHelper.Result();
      }

作者: capfhz 时间: 2017-3-14 09:05
var ddl = UIHelper.DropDownList("ParentID");
ddl.DataSource(ResolveDDL(GetSys_DepartmentCoustonTree(nodeID)).ToArray(),"ID","Name");
ddl下无.DataSimulateTreeLevelField("TreeLevel")方法

作者: sanshi 时间: 2017-3-14 11:49
可以通过 Source 属性来改变 UIHelper.DropDownList("DropDownList1") 返回的控件属性，类似如下代码：

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult btnDataBind_Click(string DropDownList1, string DropDownList1_text)
{
var dropDownList1UI = UIHelper.DropDownList("DropDownList1");
// 通过 Source 设置控件属性
dropDownList1UI.Source.EnableSimulateTree = true;
dropDownList1UI.Source.DataSimulateTreeLevelField = "Level";
dropDownList1UI.Source.DataEnableSelectField = "EnableSelect";
// 绑定数据
dropDownList1UI.DataSource(GetData2(), "Id", "Name");
// 设置选中项
dropDownList1UI.SelectedValue("11");
return UIHelper.Result();
}

复制代码

下个版本，我会增加示例：
[attach]9887[/attach]

[attach]9888[/attach]

作者: capfhz 时间: 2017-3-15 09:40
OK了，谢谢三师兄的回复

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