小编sad*_*ada的帖子

是否可以使用免费提供程序(No Devart)将EF/NHibernate实体迁移到Oracle数据库？我有这样的信息:

找不到提供者'Oracle.DataAccess.Client'的MigrationSqlGenerator.使用目标迁移配置类中的SetSqlGenerator方法注册其他SQL生成器.

先感谢您.

我想使用Ajax.ActionLink Html助手,因此我需要jquery.unobtrusive-ajax.min.js库,但IE总是显示此错误:

Microsoft JScript运行时错误:无法设置属性'unobtrusive'的值:object为null或undefined

我已经读过解决方案是使用jquery.validate.min.js和jquery.validate.unobtrusive.min.js,但后来我无法识别服务器端的ajax调用.

我尝试使用"类型"插件向节点添加自定义图标,但它不起作用或通过"图标"字段,但后来我无法从"自动"值更改背景大小.请有人帮帮我.

$("#jstree")
        .on("ready.jstree", function (e, data) {
            $('div#jstree li > a[rel="disabled"] i.jstree-checkbox').remove();
        })
        .on("open_node.jstree", function (e, data) {
            $('div#jstree li > a[rel="disabled"] i.jstree-checkbox').remove();
        })
        .jstree({
        "core": {
            "data": { "url": "/Home/TreeData" }
        },
        "types": {
            "boss": {
                "icon": "/Content/jsTree/boss.png"
            }
        },
        "plugins": ['checkbox', 'theme', "html_data"]
    });

JSON:

[{"id":null,
  "text":"Root",
  "icon":"/Content/jsTree/boss.png",
  "state":null,
  "children":
    [{"id":null,
      "text":"Leaf A",
      "icon":null,
      "state":null,
      "children":null,
      "li_attr":{"rel":"boss"},
      "a_attr":null},
     {"id":null,
      "text":"Leaf B",
      "icon":null,
      "state":null,
      "children":null,
      "li_attr":null,
      "a_attr":{"rel":"boss"}},
     {"id":null,
      "text":"Leaf C",
      "icon":null,
      "state":null,
      "children":null,
      "li_attr":null,
      "a_attr":{"rel":"disabled"}
     }],
  "li_attr":null,
  "a_attr":null
}]

我有2个实体:

public class User
{
  public int userId { get; set; }
  public string name { get; set; }
  public Guid userGuid { get; set; }
}

public class Absence
{
  public int absenceId { get; set; }
  public Guid applicantId { get; set; }
  public User applicant { get; set; }
  public Guid permitterId{ get; set; }
  public User permitter{ get; set; }
  ...
}

AbsencesConfiguration:
  this.HasRequired(u => u.Applicant).WithMany().HasForeignKey(d => d.ApplicantId);
  this.HasRequired(u => u.Permitter).WithMany().HasForeignKey(d => d.PermitterId);

我想在两个类之间使用Fluent API映射,但它会给出以下错误消息:

Blockquote\tSystem.Data.Entity.Edm.EdmAssociationConstraint …