I want this query in lambda expression:
Insert into Tbl_Bill (EmpID, TotalBill, BillByEmployee, BillBySBI, CreatedDate, UpdatedDate, OrderIDs)
select
EmpID, Sum(TotalBill), Sum(TotalBill), Sum(TotalBill),
MIN(CreatedDate), MIN(CreatedDate), COUNT(OrderID)
from
Tbl_Order
group by
EmpID;
Use LinqPad, its a superb tool to queries to linq queries
var queryTbl_Bill =
from Tbl_Order in db.Tbl_Order
group Tbl_Order by new
{
Tbl_Order.EmpID
} into g
select new
{
g.Key.EmpID,
Column1 = g.Sum(p => p.TotalBill),
Column2 = g.Sum(p => p.TotalBill),
Column3 = g.Sum(p => p.TotalBill),
Column4 = g.Min(p => p.CreatedDate),
Column5 = g.Min(p => p.CreatedDate),
Column6 = g.Count(p => p.OrderID != null)
};
foreach (var q in queryTbl_Bill)
{
decimal sbi = 0, emp = 0;
if (q.Column1 < 100.0M)
{
sbi = q.Column1 * 0.75M;
emp = q.Column1 * 0.25M;
}
else if (q.Column1 > 100.0M)
{
sbi = 75.0M;
decimal temp = q.Column1 - 100.0M;
emp = temp + 25.0M;
}
Tbl_Bill iTbl_Bill = new Tbl_Bill
{
EmpID = q.EmpID,
TotalBill = q.Column1,
BillByEmployee = emp,
BillBySBI = sbi,
CreatedDate = DateTime.Now,
UpdatedDate = DateTime.Now,
OrderIDs = q.Column6.ToString(),
Status=true
};
db.Tbl_Bill.Add(iTbl_Bill);
}
db.SaveChanges();
i got answer using linqer
Related
I am using a string sql query because of performance issues with using Linq. Due to a lot of outer applies, and a lot of where clauses using IN. The code in this sample is reduced for clarity here. I left off the IF-ELSE statements that added (or not) a lot of code to the where clause.
Here is my business object, it has an IEnumerable as a property.
public class AssetBO
{
public Guid AssetId { get; set; }
public Guid SiteId { get; set; }
public string Name { get; set; }
public IEnumerable<AssetDivisionBO> AssetDivisionInfo { get; set; }
}
And here is my string sql:
string SQL_Data = #"SELECT DISTINCT e.AssetId, e.SiteId, e.Name
FROM
Asset.vAssetLinkBox e
OUTER APPLY (
SELECT
ld.AssetDivisionId,
ld.SiteId,
ld.AssetId,
ld.DivisionId,
ld.IsDeleted,
ld.Created,
ld.LastModified,
ld.ModifiedByEmployeeId,
ld.CreatedByEmployeeId,
FROM Asset.AssetDivision ld
WHERE
ld.IsDeleted = 0
AND ld.AssetId = e.AssetId
) AS AssetDivisionInfo
WHERE
e.IsDeleted = 0";
I then run this:
var query = context.Database.SqlQuery<AssetBO>(SQL_Data);
List<AssetBO> assets = query.ToList<AssetBO>();
I would like to populate the IEnumerable AssetDivisionInfo, from the OUTER APPLY in the string SQL. Is this possible?
I get my AssetBO object, and the AssetDivisionInfo is null. Is there a way to map it?
EDIT: I was asked to supply the original Linq, so posting it here now. I need all of those OUTER APPLIES returned with the data.
public static List<ModuleView.AssetBO> Asset_GetList_ByRadFilter(COG_ContextDB context, RadFilter filter, string where_clause,
Guid Base_ContextSiteId, Guid Base_ContextEmployeeId, HashSet<Guid> PassedAssetIdList,
bool Base_ContextEmployee_IsForAllDivisions,
int PageNumber, int PageSize, string OrderByField, bool IsDescending,
bool IsRestrictedByDivision, HashSet<Guid?> Employee_DivisionIdList, out int RecordCount)
{
var interceptor = new Common.BLL.CommandInterceptorHelper();
System.Data.Entity.Infrastructure.Interception.DbInterception.Add(interceptor);
HashSet<Guid> IsForAll_AssetIdList = new HashSet<Guid>();
if (IsRestrictedByDivision == true)
{
//db hit, so calling only if IsRestrictedByDivision == true
IsForAll_AssetIdList = GetIsForAllDivisions_Assets(context, Base_ContextSiteId);
}
else
{
Base_ContextEmployee_IsForAllDivisions = false;
}
var query = from e in context.vAssetLinkBoxes
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
//OUTER APPLY to get a list of AssetIds from AssetDivision table, that are in the employees DivisionIdList (divisions he has access to.) DEV-3504
let AssetIdList = (from dv in context.AssetDivisions.Where(div => div.AssetId == e.AssetId && div.IsDeleted == false && Employee_DivisionIdList.Contains(div.DivisionId)) select dv.AssetId).ToList<Guid>()
join assetUsageInfo in
(
from e in context.AssetUsages
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
select new ModuleView.AssetUsageBO
{
AssetUsageId = e.AssetUsageId,
SiteId = e.SiteId,
AssetId = e.AssetId,
AssetUsageTypeId = e.AssetUsageTypeId,
ImportId = e.ImportId,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetUsageInfo.AssetId into assetUsageInfos
join assetExtendedFieldInfo in
(
from e in context.AssetExtendedFields
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
orderby e.FieldName
select new ModuleView.AssetExtendedFieldBO
{
AssetExtendedFieldId = e.AssetExtendedFieldId,
SiteId = e.SiteId,
AssetId = e.AssetId,
FieldName = e.FieldName,
FieldLabel = e.FieldLabel,
FieldValue = e.FieldValue,
FieldDataType = e.FieldDataType,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetExtendedFieldInfo.AssetId into assetExtendedFieldInfos
join assetDivisionInfo in
(
from e in context.AssetDivisions
from d in context.Divisions.Where(emp => emp.DivisionId == e.DivisionId && emp.IsDeleted == false)
from a in context.Assets.Where(emp => emp.AssetId == e.AssetId && emp.IsDeleted == false)
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
select new ModuleView.AssetDivisionBO
{
AssetDivisionId = e.AssetDivisionId,
SiteId = e.SiteId,
AssetId = e.AssetId,
DivisionId = e.DivisionId,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
DivisionName = d.DivisionName,
AssetName = a.Name,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetDivisionInfo.AssetId into assetDivisionInfos
where e.SiteId == Base_ContextSiteId
&& (IsRestrictedByDivision == false || (IsRestrictedByDivision == true && (Base_ContextEmployee_IsForAllDivisions == true || AssetIdList.Contains(e.AssetId) || IsForAll_AssetIdList.Contains(e.AssetId)))) //from outer apply
select new ModuleView.AssetBO
{
AssetId = e.AssetId,
SiteId = e.SiteId,
AssetTypeId = e.AssetTypeId,
Name = e.Name,
Description = e.Description,
UniqueIdentity = e.UniqueIdentity,
StatusId = e.StatusId,
CompanyId = e.CompanyId,
Make = e.Make,
Model = e.Model,
Year = e.Year,
SerialNumber = e.SerialNumber,
PhoneNumber = e.PhoneNumber,
Email = e.Email,
IsActive = e.IsActive,
BlockedTimeIsEnabled = e.BlockedTimeIsEnabled,
ImportId = e.ImportId,
IsForAllDivisions = e.IsForAllDivisions,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
AssetTypeName = e.AssetTypeName,
StatusName = e.StatusName,
CompanyName = e.CompanyName,
ModifiedByEmployeeName = e.ModifiedByEmployeeName,
AssetUsageTypeId = e.AssetUsageTypeId,
NumCaptainsOnBoard = (e.CaptainNum == null) ? 0 : (int)e.CaptainNum,
ActivityTimeInMin = e.TotalDurationInMin,
AssetUsageInfo = assetUsageInfos,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
AssetExtendedFieldInfo = assetExtendedFieldInfos,
AssetDivisionInfo = assetDivisionInfos,
DivisionDelimitedString = "", //must be here to avoid error when sorting. Sort is done in BA code.
};
if (string.IsNullOrEmpty(where_clause))
{
where_clause = DataFilterBA.GetFilterWhereClause(context, filter, "ASSET", Base_ContextEmployeeId, Base_ContextSiteId, "LINQ");
}
int SkipRows = (PageNumber - 1) * PageSize;
if (PassedAssetIdList.Count == 0)
{
RecordCount = query.Where(where_clause).Select(d => d.AssetId).Distinct().Count();
//RecordCount = query.Where(where_clause).GroupBy(test => test.AssetId)
// .Select(grp => grp.FirstOrDefault()).Count();
query = query.Where(where_clause).OrderBy(OrderByField + (IsDescending ? " descending" : ""));
}
else
{
RecordCount = query.Where(x => PassedAssetIdList.Contains(x.AssetId)).Where(where_clause).Select(d => d.AssetId).Distinct().Count();
query = query.Where(x => PassedAssetIdList.Contains(x.AssetId)).Where(where_clause).OrderBy(OrderByField + (IsDescending ? " descending" : ""));
}
List<ModuleView.AssetBO> items = new List<ModuleView.AssetBO>();
if (PageSize == -1)
{
items = query.ToList<ModuleView.AssetBO>();
}
else
{
items = query.Skip(SkipRows).Take(PageSize).ToList<ModuleView.AssetBO>();
}
System.Data.Entity.Infrastructure.Interception.DbInterception.Remove(interceptor);
if (items != null && items.Count > 0)
{
items = items.GroupBy(test => test.AssetId)
.Select(grp => grp.FirstOrDefault())
.ToList();
return items;
}
return new List<ModuleView.AssetBO>();
}
I was wrote some code in Asp MVC with EF technology, I have condition line to find row with today date if i was not found i add it to database and then use the saved row for another process, but i get error when i refresh error page it work fine ! i think my code can not work async!
any body can help me to found my wrong ?
public ActionResult LineRegimeSave(string breakFast, string snake1, string lunch, string snake2, string snake3,string dinner, string snake4,string adviseText, string docFooterId)
{
ApplicationDbContext myContext = new ApplicationDbContext();
var docFooter = docFooterId != "null" ? myContext.DocFooters.Single(d => d.Id.ToString() == docFooterId) : null;
var strLine="BreakFast,"+ breakFast + "/Snake1,"+ snake1 + "/Lunch,"+ lunch + "/Snake2,"+ snake2 + "/Snake3,"+ snake3 + "/Dinner,"+ dinner + "/Snake4,"+snake4;
TriageRecord getMedicalRecId;
var userId = Session["NID"];
var userProfile = myContext.UserProfiles.Single(b => b.NationalId.ToString() == userId.ToString());
getMedicalRecId = myContext.TriageRecords.Where(u => u.UserProfile.Id == userProfile.Id)
.OrderByDescending(d => d.DateTime).First();
if (getMedicalRecId.DateTime.Date != DateTime.Today)
{
TriageRecord insert = new TriageRecord
{
Bust = getMedicalRecId.Bust,
Diastolic = getMedicalRecId.Diastolic,
HeartRate = getMedicalRecId.HeartRate,
Systolic = getMedicalRecId.Systolic,
Height = getMedicalRecId.Height,
Weight = getMedicalRecId.Weight,
Wrist = getMedicalRecId.Wrist,
Waist = getMedicalRecId.Waist,
Hips = getMedicalRecId.Hips,
UserProfile = getMedicalRecId.UserProfile,
DateTime = DateTime.Now
};
insert.MedicalRecord = new MedicalRecord
{
TriageRecord = insert,
VisitDate = DateTime.Now,
};
myContext.TriageRecords.Add(insert);
myContext.SaveChanges();
getMedicalRecId = myContext.TriageRecords.Where(u => u.UserProfile.Id == userProfile.Id)
.OrderByDescending(d => d.DateTime).First();
getMedicalRecId.MedicalRecord.MedicalRecordDetails.Add
(
new MedicalRecordDetail
{
DateTime = DateTime.Now,
VisitMode = "LineDiet",
VisitSummary = strLine,
DocFooter = docFooter,
AdviseText = adviseText
}
);
myContext.SaveChanges();
}
else
{
getMedicalRecId.MedicalRecord.MedicalRecordDetails.Add
(
new MedicalRecordDetail
{
DateTime = DateTime.Now,
VisitMode = "LineDiet",
VisitSummary = strLine,
DocFooter = docFooter,
AdviseText = adviseText
}
);
myContext.SaveChanges();
}
return RedirectToAction("LineRegimePrint",new { id = getMedicalRecId.Id});
}
Error occur on this line :
getMedicalRecId.MedicalRecord.MedicalRecordDetails.Add
(
new MedicalRecordDetail
{
DateTime = DateTime.Now,
VisitMode = "LineDiet",
VisitSummary = strLine,
DocFooter = docFooter,
AdviseText = adviseText
}
);
Error text is : Null reference...
Thank you.
update :
insert.MedicalRecord = new MedicalRecord
{
TriageRecord = insert,
VisitDate = DateTime.Now,
};
myContext.TriageRecords.Add(insert);
myContext.SaveChanges();
Do i need to change this code ?
var a = insert.MedicalRecord = new MedicalRecord
{
TriageRecord = insert,
VisitDate = DateTime.Now,
};
myContext.TriageRecords.Add(insert);
myContext.MedicalRecords.Add(a);
So according to you the problem occurs whenever you try to add an item to the list, but it says the object is null, so you need to check for that.
public ActionResult LineRegimeSave(string breakFast, string snake1, string lunch, string snake2, string snake3,string dinner, string snake4,string adviseText, string docFooterId)
{
...
getMedicalRecId = myContext.TriageRecords.Where(u => u.UserProfile.Id == userProfile.Id).OrderByDescending(d => d.DateTime).First();
if(getMedicalRecId != null) {
if (getMedicalRecId.DateTime.Date != DateTime.Today)
{
...
insert.MedicalRecord = new MedicalRecord
{
TriageRecord = insert,
VisitDate = DateTime.Now,
MedicalRecordDetails = new List<MedicalRecordDetail>(){ new MedicalRecordDetail
{
DateTime = DateTime.Now,
VisitMode = "LineDiet",
VisitSummary = strLine,
DocFooter = docFooter,
AdviseText = adviseText
}
};
myContext.SaveChanges();
}
}
else
{
....
}
else
{
throw new Exception("The current user profile has no triage records!");
}
return RedirectToAction("LineRegimePrint",new { id = getMedicalRecId.Id});
}
I'm facing problems with server side pagination in jqgrid using mvc. Here's my controller code.
[HttpGet]
public JsonResult GetAllStudents(JqGridRequest jRequest) {
var Records = from a in entities.studentdetails.ToList() select new {
a.ID,
a.Name,
a.DOB
};
int pageIndex = Convert.ToInt32(jRequest.PageIndex);
int pageSize = jRequest.RecordsCount;
int startRow = (pageIndex * pageSize) + 1;
int totalRecords = Records.Count();
int totalPages = (int)Math.Ceiling((float)totalRecords / (float)pageSize);
Records = Records.Skip(pageIndex * pageSize).Take(pageSize).ToArray();
if (jRequest.Searching) {
int sId = Convert.ToInt32(jRequest.SearchingFilters.Filters[0].SearchingValue);
//string sName = jRequest.SearchingFilters.Filters[0].SearchingValue;
Records = entities.studentdetails.Select(a => new {
a.ID,
a.Name,
a.DOB
}).Where(p => p.ID == sId);
}
else {
Records = entities.studentdetails.Select(a => new {
a.ID,
a.Name,
a.DOB
});
}
var jsonData = new {
total = totalPages,
page = pageIndex,
records = totalRecords,
rows = Records
};
return Json(jsonData, JsonRequestBehavior.AllowGet);
}
Here are some changes I made and the issue got solved.
1- int pageIndex = Convert.ToInt32(jRequest.PageIndex) + 1;
2- Records =
entities.studentdetails.Select(
a => new
{
a.ID,
a.Name,
a.DOB
})**.OrderBy(s => s.ID).Skip((pageIndex-1) * pageSize).Take(pageSize).ToArray();**
I am trying to 'convert' a query to List while using async to retrieve the values to a list and return the NewsListViewModel to my controller as a success or failure like so:
var model = await db.News.Where(n => n.newsPublished == false
&& n.newsTitle.Contains(query)
|| n.newsDescription.Contains(query)).
OrderBy(n => n.newsCreatedDate).Select(n => new List<NewsListViewModel>
{
NewsCreatorFName = n.Profile.profileFirstName,
NewsCreatorLName = n.Profile.profileLastName,
NewsID = n.newsID,
NewsCreatorID = n.userID,
NewsTitle = n.newsTitle,
CreatedDate = n.newsCreatedDate
})
.ToListAsync();
or like this:
public static async Task<List<NewsListViewModel>> GetAllNotPublished(string query)
{
if (query != "" && query != null)
{
var model = (from n in db.News
where n.newsPublished == false && n.newsTitle.Contains(query)
|| n.newsDescription.Contains(query)
orderby n.newsCreatedDate
select new NewsListViewModel
{
NewsCreatorFName = n.Profile.profileFirstName,
NewsCreatorLName = n.Profile.profileLastName,
NewsID = n.newsID,
NewsCreatorID = n.userID,
NewsTitle = n.newsTitle,
CreatedDate = n.newsCreatedDate
});
return await model.ToListAsync();
}
else
{
var model = (from n in db.News
where n.newsPublished == false
orderby n.newsCreatedDate
select new NewsListViewModel
{
NewsCreatorFName = n.Profile.profileFirstName,
NewsCreatorLName = n.Profile.profileLastName,
NewsID = n.newsID,
NewsCreatorID = n.userID,
NewsTitle = n.newsTitle,
CreatedDate = n.newsCreatedDate
});
return await model.ToListAsync();
}
}
I am probably going about this bass akwards and WAAAAY wrong but I have been battling with this for hours now trying to figure it out and can't find any examples that look similar.
One thing is that I can return either one just fine if it is in the ActionResult which is strange to me. This below works just fine, but I don't want it in the ActionResult. I would like to have the list retrieval portion in a separate method.
Thanks in advance for any help.
public async Task<ActionResult> PublishList(string query)
{
if (query != "" && query != null)
{
var model = (from n in db.News
where n.newsPublished == false && n.newsTitle.Contains(query)
|| n.newsDescription.Contains(query)
orderby n.newsCreatedDate
select new NewsListViewModel
{
NewsCreatorFName = n.Profile.profileFirstName,
NewsCreatorLName = n.Profile.profileLastName,
NewsID = n.newsID,
NewsCreatorID = n.userID,
NewsTitle = n.newsTitle,
CreatedDate = n.newsCreatedDate
});
return View(await model.ToListAsync());
}
else
{
var model = (from n in db.News
where n.newsPublished == false
orderby n.newsCreatedDate
select new NewsListViewModel
{
NewsCreatorFName = n.Profile.profileFirstName,
NewsCreatorLName = n.Profile.profileLastName,
NewsID = n.newsID,
NewsCreatorID = n.userID,
NewsTitle = n.newsTitle,
CreatedDate = n.newsCreatedDate
});
return View(await model.ToListAsync());
}
}
While i build the Project, It have a error like this:
Server Error in '/' Application.
The model item passed into the dictionary is of type
'System.Data.DataTable', but this dictionary requires a model item of
type 'System.Collections.Generic.IList`1[TLayout.Models.DemoTable]'.
This is my Controller
public ActionResult Index()
{
var dm = new DemoTable();
string connstring = "Server=localhost;Port=5432;User Id=postgres;Password=123456;Database=test";
NpgsqlConnection conn = new NpgsqlConnection(connstring);
conn.Open();
string sql = "select * from demo";
NpgsqlDataAdapter da = new NpgsqlDataAdapter(sql, conn);
ds.Reset();
da.Fill(ds);
dt = ds.Tables[0];
var demoid = dm.demoid.ToString();
var demoname = dm.demoname;
for (int i = 0; i < dt.Rows.Count; i++)
{
List<DataTable> dtb = new List<DataTable>();
demoid = dt.Rows[i]["demoid"].ToString();
demoname = dt.Rows[i]["demoname"].ToString();
dtb.Add(dt);
}
return View(dt);
}
This is my View, to show data to layout:
foreach (var item in Model)
{
fields.Add(Html.X().ModelField().Mapping(#item.demoid.ToString()).Name("grid-alarm"));
fields.Add(Html.X().ModelField().Mapping(#item.demoname.ToString()).Name("grid-check"));
}
var list = dt.AsEnumerable()
.Where(row => (int)row["demoid"] > 5)
.Select(row => new
{
demoid = Convert.ToInt32(row["demoid"]),
demoname = row["demoname"] != null ?
row["demoname"].ToString() :
String.Empty
}).ToList();
Or you can define class:
public class myClass
{
public int demoid;
public string demoname;
}
and then:
List<myClass> list = dt.AsEnumerable()
.Where(row => (int)row["demoid"] > 5)
.Select(row => new myClass
{
demoid = Convert.ToInt32(row["demoid"]),
demoname = row["demoname"] != null ?
row["demoname"].ToString() :
String.Empty
}).ToList<myClass>();