private BaseVM CreateVM(Type VMType, object Id = null, object[] Ids = null, Dictionary <string, object> values = null, bool passInit = false)
{
//通过反射创建ViewModel并赋值
var ctor = VMType.GetConstructor(Type.EmptyTypes);
BaseVM rv = ctor.Invoke(null) as BaseVM;
try
{
rv.Session = new SessionServiceProvider(HttpContext.Session);
}
catch { }
rv.ConfigInfo = ConfigInfo;
rv.Cache = Cache;
rv.LoginUserInfo = LoginUserInfo;
rv.DataContextCI = ConfigInfo.ConnectionStrings.Where(x => x.Key.ToLower() == CurrentCS.ToLower()).Select(x => x.DcConstructor).FirstOrDefault();
rv.DC = this.DC;
rv.MSD = new ModelStateServiceProvider(ModelState);
rv.FC = new Dictionary <string, object>();
rv.CreatorAssembly = this.GetType().AssemblyQualifiedName;
rv.CurrentCS = CurrentCS;
rv.CurrentUrl = this.BaseUrl;
rv.WindowIds = "";
rv.UIService = new DefaultUIService();
rv.Log = this.Log;
rv.ControllerName = this.GetType().FullName;
rv.Localizer = this.Localizer;
if (HttpContext != null && HttpContext.Request != null)
{
try
{
if (Request.QueryString != null)
{
foreach (var key in Request.Query.Keys)
{
if (rv.FC.Keys.Contains(key) == false)
{
rv.FC.Add(key, Request.Query[key]);
}
}
}
var f = HttpContext.Request.Form;
foreach (var key in f.Keys)
{
if (rv.FC.Keys.Contains(key) == false)
{
rv.FC.Add(key, f[key]);
}
}
}
catch { }
}
//如果传递了默认值，则给vm赋值
if (values != null)
{
foreach (var v in values)
{
PropertyHelper.SetPropertyValue(rv, v.Key, v.Value, null, false);
}
}
//如果ViewModel T继承自BaseCRUDVM<>且Id有值，那么自动调用ViewModel的GetById方法
if (Id != null && rv is IBaseCRUDVM <TopBasePoco> cvm)
{
cvm.SetEntityById(Id);
}
//如果ViewModel T继承自IBaseBatchVM<BaseVM>，则自动为其中的ListVM和EditModel初始化数据
if (rv is IBaseBatchVM <BaseVM> temp)
{
temp.Ids = new string[] { };
if (Ids != null)
{
var tempids = new List <string>();
foreach (var iid in Ids)
{
tempids.Add(iid.ToString());
}
temp.Ids = tempids.ToArray();
}
if (temp.ListVM != null)
{
temp.ListVM.CopyContext(rv);
temp.ListVM.Ids = Ids == null ? new List <string>() : temp.Ids.ToList();
temp.ListVM.SearcherMode = ListVMSearchModeEnum.Batch;
temp.ListVM.NeedPage = false;
}
if (temp.LinkedVM != null)
{
temp.LinkedVM.CopyContext(rv);
}
if (temp.ListVM != null)
{
//绑定ListVM的OnAfterInitList事件，当ListVM的InitList完成时，自动将操作列移除
temp.ListVM.OnAfterInitList += (self) =>
{
self.RemoveActionColumn();
self.RemoveAction();
if (temp.ErrorMessage.Count > 0)
{
self.AddErrorColumn();
}
};
if (temp.ListVM.Searcher != null)
{
var searcher = temp.ListVM.Searcher;
searcher.CopyContext(rv);
if (passInit == false)
{
searcher.DoInit();
}
}
}
temp.LinkedVM?.DoInit();
//temp.ListVM?.DoSearch();
}
//如果ViewModel是ListVM，则初始化Searcher并调用Searcher的InitVM方法
if (rv is IBasePagedListVM <TopBasePoco, ISearcher> lvm)
{
var searcher = lvm.Searcher;
searcher.CopyContext(rv);
if (passInit == false)
{
//获取保存在Cookie中的搜索条件的值，并自动给Searcher中的对应字段赋值
string namePre = ConfigInfo.CookiePre + "`Searcher" + "`" + rv.VMFullName + "`";
Type searcherType = searcher.GetType();
var pros = searcherType.GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance).ToList();
pros.Add(searcherType.GetProperty("IsValid"));
Dictionary <string, string> cookieDic = HttpContext.Session.Get <Dictionary <string, string> >("SearchCondition" + searcher.VMFullName);
if (cookieDic != null)
{
foreach (var pro in pros)
{
var name = namePre + pro.Name;
if (cookieDic.ContainsKey(name) && !string.IsNullOrEmpty(cookieDic[name]))
{
try
{
if (cookieDic[name] == "`")
{
pro.SetValue(searcher, null);
}
else
{
PropertyHelper.SetPropertyValue(searcher, pro.Name, cookieDic[name], null, true);
}
}
catch { }
}
}
}
searcher.DoInit();
}
}
if (rv is IBaseImport <BaseTemplateVM> tvm)
{
var template = tvm.Template;
template.CopyContext(rv);
template.DoInit();
}
//自动调用ViewMode的InitVM方法
if (passInit == false)
{
rv.DoInit();
}
return(rv);
}
//-------------------------------------------方法------------------------------------//
#region CreateVM
/// <summary>
/// Create a ViewModel, and pass Session,cache,dc...etc to the viewmodel
/// </summary>
/// <param name="VMType">The type of the viewmodel</param>
/// <param name="Id">If the viewmodel is a BaseCRUDVM, the data having this id will be fetched</param>
/// <param name="Ids">If the viewmodel is a BatchVM, the BatchVM's Ids property will be assigned</param>
/// <param name="values">properties of the viewmodel that you want to assign values</param>
/// <param name="passInit">if true, the viewmodel will not call InitVM internally</param>
/// <returns>ViewModel</returns>
private BaseVM CreateVM(Type VMType, object Id = null, object[] Ids = null, Dictionary <string, object> values = null, bool passInit = false)
{
//Use reflection to create viewmodel
var ctor = VMType.GetConstructor(Type.EmptyTypes);
BaseVM rv = ctor.Invoke(null) as BaseVM;
try
{
rv.Session = new SessionServiceProvider(HttpContext.Session);
}
catch { }
rv.ConfigInfo = ConfigInfo;
rv.Cache = Cache;
rv.LoginUserInfo = LoginUserInfo;
rv.DataContextCI = ConfigInfo.ConnectionStrings.Where(x => x.Key.ToLower() == CurrentCS.ToLower()).Select(x => x.DcConstructor).FirstOrDefault();
rv.DC = this.DC;
rv.MSD = new ModelStateServiceProvider(ModelState);
rv.FC = new Dictionary <string, object>();
rv.CreatorAssembly = this.GetType().AssemblyQualifiedName;
rv.CurrentCS = CurrentCS;
rv.CurrentUrl = this.BaseUrl;
rv.WindowIds = this.WindowIds;
rv.UIService = this.UIService;
rv.Log = this.Log;
rv.Controller = this;
rv.ControllerName = this.GetType().FullName;
rv.Localizer = this.Localizer;
if (HttpContext != null && HttpContext.Request != null)
{
try
{
if (Request.QueryString != null)
{
foreach (var key in Request.Query.Keys)
{
if (rv.FC.Keys.Contains(key) == false)
{
rv.FC.Add(key, Request.Query[key]);
}
}
}
if (HttpContext.Request.HasFormContentType)
{
var f = HttpContext.Request.Form;
foreach (var key in f.Keys)
{
if (rv.FC.Keys.Contains(key) == false)
{
rv.FC.Add(key, f[key]);
}
}
}
}
catch { }
}
//try to set values to the viewmodel's matching properties
if (values != null)
{
foreach (var v in values)
{
PropertyHelper.SetPropertyValue(rv, v.Key, v.Value, null, false);
}
}
//if viewmodel is derrived from BaseCRUDVM<> and Id has value, call ViewModel's GetById method
if (Id != null && rv is IBaseCRUDVM <TopBasePoco> cvm)
{
cvm.SetEntityById(Id);
}
//if viewmodel is derrived from IBaseBatchVM<>，set ViewMode's Ids property,and init it's ListVM and EditModel properties
if (rv is IBaseBatchVM <BaseVM> temp)
{
temp.Ids = new string[] { };
if (Ids != null)
{
var tempids = new List <string>();
foreach (var iid in Ids)
{
tempids.Add(iid.ToString());
}
temp.Ids = tempids.ToArray();
}
if (temp.ListVM != null)
{
temp.ListVM.CopyContext(rv);
temp.ListVM.Ids = Ids == null ? new List <string>() : temp.Ids.ToList();
temp.ListVM.SearcherMode = ListVMSearchModeEnum.Batch;
temp.ListVM.NeedPage = false;
}
if (temp.LinkedVM != null)
{
temp.LinkedVM.CopyContext(rv);
}
if (temp.ListVM != null)
{
//Remove the action columns from list
temp.ListVM.OnAfterInitList += (self) =>
{
self.RemoveActionColumn();
self.RemoveAction();
if (temp.ErrorMessage.Count > 0)
{
self.AddErrorColumn();
}
};
temp.ListVM.DoInitListVM();
if (temp.ListVM.Searcher != null)
{
var searcher = temp.ListVM.Searcher;
searcher.CopyContext(rv);
if (passInit == false)
{
searcher.DoInit();
}
}
}
temp.LinkedVM?.DoInit();
//temp.ListVM.DoSearch();
}
//if the viewmodel is a ListVM, Init it's searcher
if (rv is IBasePagedListVM <TopBasePoco, ISearcher> lvm)
{
var searcher = lvm.Searcher;
searcher.CopyContext(rv);
if (passInit == false)
{
searcher.DoInit();
}
lvm.DoInitListVM();
}
if (rv is IBaseImport <BaseTemplateVM> tvm)
{
var template = tvm.Template;
template.CopyContext(rv);
template.DoInit();
}
//if passinit is not set, call the viewmodel's DoInit method
if (passInit == false)
{
rv.DoInit();
}
return(rv);
}
