1
我有一個模型:MVC視圖模型和導航屬性
public partial class VisitorLog
{
public int Id { get; set; }
public string VisitorName { get; set; }
public DateTime TimeIn { get; set; }
public DateTime TimeOut { get; set; }
public string CompanyName { get; set; }
public string EmployeeID { get; set; }
public string VisitReason { get; set; }
// Navigation properties
[ForeignKey("EmployeeID")]
public virtual Employee Employee { get; set; }
}
一個通用存儲庫:
public class GenericRepository<C, T> : IGenericRepository<T> where T : class where C : DbContext, new()
{
private C _entities = new C();
public C Context
{
get { return _entities; }
set { _entities = value; }
}
public virtual IQueryable<T> GetAll()
{
IQueryable<T> query = _entities.Set<T>();
return query;
}
public IQueryable<T> FindBy(System.Linq.Expressions.Expression<Func<T, bool>> predicate)
{
IQueryable<T> query = _entities.Set<T>().Where(predicate);
return query;
}
public virtual void Add(T entity)
{
_entities.Set<T>().Add(entity);
}
public virtual void Delete(T entity)
{
_entities.Entry(entity).State = System.Data.EntityState.Deleted;
}
public virtual void Edit(T entity)
{
_entities.Entry(entity).State = System.Data.EntityState.Modified;
}
public virtual void Save()
{
_entities.SaveChanges();
}
}
爲通用信息庫的接口:
public interface IGenericRepository<T> where T : class
{
IQueryable<T> GetAll();
IQueryable<T> FindBy(Expression<Func<T, bool>> predicate);
void Add(T entity);
void Delete(T entity);
void Edit(T entity);
void Save();
}
我的具體模型庫(繼承通用):
public class VisitorLogRepository : GenericRepository<VisitorLogDBContext, VisitorLog>, IVisitorLogRepository {
public VisitorLog GetSingle(int id)
{
var query = GetAll().FirstOrDefault(x => x.Id == id);
return query;
}
}
public class SearchViewModel
{
public IEnumerable<VisitorLog> VisitorLogs { get; set; }
}
我的控制器被加載視圖模型到視圖:
var searchViewModel = new SearchViewModel
{
VisitorLogs = iVisitorlogRepository.FindBy(v => v.VisitorName.Contains(searchText)
|| v.CompanyName.Contains(searchText)
|| v.EmployeeID.Contains(searchText)),
};
,最後我的看法:
@model VisitorLogApp.ViewModels.SearchViewModel
@foreach (var item in ViewData.Model.VisitorLogs) {
<tr>
<td>
@Html.ActionLink("Edit", "Edit", new { id=item.Id }) |
@Html.ActionLink("Details", "Details", new { id=item.Id }) |
@Html.ActionLink("Delete", "Delete", new { id=item.Id })
</td>
<td>
@item.VisitorName
</td>
<td>
@item.CompanyName
</td>
<td>
@item.Employees.EmployeeName
</td>
<td>
@String.Format("{0:g}", item.TimeIn)
</td>
<td>
@String.Format("{0:g}", item.TimeOut)
</td>
<td>
@item.VisitReason
</td>
</tr>
一切都與一個異常偉大的工作。該視圖顯示訪問者列表(VisitorLog)。使用導航屬性,我可以通過簡單地使用@ item.Employees.EmployeeName來獲得EmployeeName值,而不是VisitorLog類中的員工ID。不過,我也希望能夠在控制器在我的倉庫通話員工姓名搜索:
VisitorLogs = iVisitorlogRepository.FindBy(v => v.VisitorName.Contains(searchText)
|| v.CompanyName.Contains(searchText)
|| v.Employees.EmployeeName.Contains(searchText)),
但Employees.EmployeeName在上面的例子中沒有顯示在列表成員「選項v」。
任何幫助表示讚賞。
DOH !!!那樣做了!謝謝! – steveareeno