public static void SetDeleteStatus <T>(
Guid objectID,
DeleteStatus deleteStatus,
List <object> relevanceOperations)
{
var _DbContext = new EntityDbContext();
var dbSet = _DbContext.Set(typeof(T));
var returnStatus = true;
var returnMessage = "";
var bo = dbSet.Find(objectID);
if (bo == null)
{
returnStatus = false;
returnMessage = "<li>你所删除的数据不存在，如果确定不是数据逻辑错误原因，请将本情况报告系统管理人员。</li>";
deleteStatus.Initialize(returnStatus, returnMessage);
}
else
{
#region 处理关联关系
foreach (var deleteOperationObject in relevanceOperations)
{
var deleteProperty = deleteOperationObject.GetType().GetProperties().Where(pn => pn.Name == "CanDelete").FirstOrDefault();
var itCanDelete = (bool)deleteProperty.GetValue(deleteOperationObject);
var messageProperty = deleteOperationObject.GetType().GetProperties().Where(pn => pn.Name == "OperationMessage").FirstOrDefault();
var messageValue = messageProperty.GetValue(deleteOperationObject) as string;
if (!itCanDelete)
{
returnStatus = false;
returnMessage += "<li>" + messageValue + "</li>";
}
}
#endregion
if (returnStatus)
{
try
{
dbSet.Remove(bo);
_DbContext.SaveChanges();
deleteStatus.Initialize(returnStatus, returnMessage);
}
catch (System.Data.Entity.Core.EntityException)
{
returnStatus = false;
returnMessage = "<li>无法删除所选数据，其信息正被使用，如果确定不是数据逻辑错误原因，请将本情况报告系统管理人员。</li>";
deleteStatus.Initialize(returnStatus, returnMessage);
}
}
else
{
deleteStatus.Initialize(returnStatus, returnMessage);
}
}
}
public virtual DeleteStatus DeleteAndSave(Guid id, List <object> relevanceOperations)
{
var deleteStatus = new DeleteStatus();
var returnStatus = true;
var returnMessage = "";
var bo = GetSingle(id);
if (bo == null)
{
returnStatus = false;
returnMessage = "你所删除的数据不存在，如果确定不是数据逻辑错误原因，请将本情况报告系统管理人员。";
deleteStatus.Initialize(returnStatus, returnMessage);
}
else
{
#region 处理关联关系
var i = 0;
foreach (var deleteOperationObject in relevanceOperations)
{
var deleteProperty = deleteOperationObject.GetType().GetProperties().Where(pn => pn.Name == "CanDelete").FirstOrDefault();
var itCanDelete = (bool)deleteProperty.GetValue(deleteOperationObject);
var messageProperty = deleteOperationObject.GetType().GetProperties().Where(pn => pn.Name == "OperationMessage").FirstOrDefault();
var messageValue = messageProperty.GetValue(deleteOperationObject) as string;
if (!itCanDelete)
{
returnStatus = false;
returnMessage += (i++) + "、" + messageValue + "。\n";
}
}
#endregion
if (returnStatus)
{
try
{
DeleteAndSave(bo);
deleteStatus.Initialize(returnStatus, returnMessage);
}
catch (DbUpdateException)
{
returnStatus = false;
returnMessage = "无法删除所选数据，其信息正被使用，如果确定不是数据逻辑错误原因，请将本情况报告系统管理人员。";
deleteStatus.Initialize(returnStatus, returnMessage);
}
}
else
{
deleteStatus.Initialize(returnStatus, returnMessage);
}
}
return(deleteStatus);
}
