Group By And Aggregate On A Calculated Column
Feb 20, 2011how to change this Linq to Entities (VB.Net) query to Group by L2_ID column and aggregate the calculated column diff as Sum for the group.
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Linq-to-Entities Aggregate A Column That Is Calculated In An External Function?
Feb 21, 2011I want to Sum of the calculated column Red which is calculated in the Function IsRed() that return an integer.When I run the query I get the following error: Method 'Int32 IsRed(Int32)' has no supported translation to SQL.How should I rewrite this to get it to work.
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Linq To Sql, Aggregate Columns ,group By Date Into Listview?
Aug 3, 2011also i have a table called Orders with several columns, they contain information about the order and store the ID of the Customer they belong to.Question is: how can i query that table with (preferably) linq (the datacontext is from LinqToSql) to return the following dataI want to search for any entry with the matching CustomerID which took place, group them by Year, Sum the Totals respectively and add them to the listview?I now i could use lamda expressions and aggregate, its just not clear how (option infer on,db is a datacontext object,CustomerID is an int32 variable):
Dim Orders = (From order In db.Orders Where order.CustomerID = CustomerID).GroupBy(Function(p) p.Date.Year).GetEnumerator
I reckon i'd have to create an anonymous type like the following:
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VS 2010 Aggregate A Datagridview Column?
Jul 2, 2009I am trying to aggregate a column in a datagridview. I know how to get it to work if I bind a database to it, I have several of them working perfectly, but I have one datagrid that is not bound to a database and for the life of me can not fiqure out
View 4 RepliesForms :: Calculated Column With SQL
Feb 2, 2010I am attempting to develop a Gradebook that one can use to modify grades and have an average calculated at the end.When you first open the form, you see the database fields in the DataGrid (socSecNumber, firstExam, secondExam, finalExam)I have a button to save the changes made here. The exam grades are null in the database.This seems to work fine, however I have a problem with the calculated column I want to add. I want it to display the socSecNumber and the average for that student. Instead, I get all four fields in addition to the semAverage field. Also, all the grades come up 250 if I fill all the fields in with 100.[code]
View 2 Replies.net - Aggregate The Columns To Group On The Period And Sum The Count Columns?
Jun 29, 2011I have the below Linq query that is returning the data but I need to aggregate the columns to group on the Period and Sum the Count columns. How do I go about doing this?
LINQ
from t In tblTimes
join h In tblEngineeringDashboard_CADMachinesCounts on t.ID Equals h.TimeID
Order By t.Period
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Add A Calculated Count Column To An Existing Datagridview At Runtime?
Aug 4, 2011in my tableadapter query i have a count function "COUNT(PRIMVENDOR)" to give me the number of rows in each group by:
SELECT VENALPHA, PRIMVENDOR, [GROUP], COUNT(PRIMVENDOR) AS GrpCount
FROM ViewCurrentMasterFile
WHERE (PRIMVENDOR = @VenNum)
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How To Group Column In DataGridView
Aug 17, 2009I wanted multi grouping in datagridview in vb.net 3.5. How can we group column in datagridview?
View 3 RepliesAdd One More Column With Working Group Details?
Apr 21, 2012I`m using below login solution and need to add one more column with Working Group details.
Once user logs-in (after OK command MDIparent form is displayed), working group details will be displayed in toolstrip status label.
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.NET 2010, Crystal Reports, Column Totals In A Group?
May 18, 2011We are using VB.NET 2010 with Crystal Reports to generate reports for our project. The reports are filled from Data Sets that are filled from Arrays. As far as that goes all is working great.Where we are running into a headache is when we try to total up a specific column in the generated report. We have created a Group called EMPLOYEE that creates grouping by employee name. We cannot seem to figure out the necessary steps to get our AMOUNT column (Numerical field) to total in the EMPLOYEE group or anywhere else for that matter. No luck with Google (may not know what to look for...) no luck here and no luck with my CR book...
View 4 RepliesGroup Rows In Comma Delimited File By Column?
Sep 10, 2009I have another puzzle to solve and I was hoping that I could get some pointers in the right direction. I have a comma delited text file and I want to write a program that will read the rows and write a report grouping the rows by a column.[code]...
View 3 RepliesSuppress Column In Crystal Report Group Section?
Dec 25, 2009Suppress Column in Crystal report Group Section
View 5 RepliesHow To Express'Aggregate Into' In C#
Jul 25, 2011I have a code in VB .NET:Aggregate item In items Into Sum(item.Value)
View 3 RepliesVS 2008 OleDB - Search My Access Database And Count The Number Of Records In The Column "Type" In Each Group
Feb 13, 2010I want to search my access database and count the number of records in the column "Type" in each group. For example
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See If Current User's Group Name Matches A Specified Group Name Using Active Directory Roles And SID's?
May 3, 2011I'm trying to match up a specific group name and see if it exists for the currently logged in user using Active Directory roles. If the Group Name exists for the Current User, I want that group name to be displayed in a drop down list. Example: If current user is in BIG Group, display BIG in drop down list.Problem: All I am getting is SIDs and I'm not able to get anything to match up to the group name and nothing will show up in the drop down list.I also get the following Error:Error: Object variable or WIth block variable not set.How do I fix this?? here is the code I am using:
Private Sub GetMarketingCompanies()
' code to populate marketing company drop down list based on the current logged in users active directory group that
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Enumerate If An Active Directory Group's Member Is User Or Another Group
Jan 31, 2011Enumerate if an Active Directory group's member is user or another group
View 1 Replies.net - Aggregate Multiple IEnumerables Of T
Jun 30, 2009Given....
Public MasterList as IEnumerable(Of MasterItem)
Public Class MasterItem(Of T)
Public SubItems as IEnumerable(Of T)
End Class
I would like a single IEnumerable(Of T) which will iterate through all SubItems of all MasterItems in MasterList
I would like to think that there is a Linq facility to do this, or an extension method I am overlooking. I need a mechanism that works in VB9 (2008) and hence does not use Yield.
How To Aggregate Field's Numeric Value
Nov 1, 2011How to Aggregate field's numeric value..? in visual basic 2010.i am created a form with a datagridview and a textbox .datagridview binding with a table. in visual basic 2010 and SQL Server 2008R2
table fields and datagridview columns are like below
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How To Use Aggregate Function In LINQ
Nov 1, 2011I want to get the average of this query.
From d In (From c In location.Descendants("temperature")
Where c.Attribute("type").Value = "hourly" Select c).Descendants("value")
Take 3
Select d
I can see the aggregate keyword in the autocomplete dropdown, but how to apply it.
IDE :: Aggregate Query With Condition ?
May 28, 2012i have 1 query with aggregate with condition using access
SELECT
HD.No,
SUM(IIf(DT.Status = 'A', 1, 0)) AS One,[code]...
i can run it in access but not in .Net QueryBuilder
Run Aggregate Function In Expression?
May 9, 20101.print the cars which are fast moving cars.
i have written this code but it shows message Cannot have aggregate function in expression[code]...
Run Aggregate Query Against A Datatable?
Mar 9, 2010I do have a datatable filled from a flatfile (say .txt). After the datatable is populated, I manipulate the data. After datamanipulation I want to do some analysis of the content of the datatable. For this analysis, I need to aggregate the data.
To keep it simple, let's say I have single orders of customers in the datatable and now I want to get the total order amount for each customer (SQL: SELECT Customer, Count(Ordervalue) FROM Ordertable GROUP BY Customer).
LINQ - Logical Difference Between Max And Aggregate?
Apr 6, 2011I've seen the operator Max used two different ways. The following two queries produce the same results. The MSIL code is slightly different. What is the benefit of using the Aggregate operator? Logically, is there a difference?
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LINQ Expression Starting With From And Aggregate
May 4, 2012[code]The LINQ query going into "result" is incomplete because I'm stumped at what is happening there. I expect FirstOrDefault to refer to refer to a single Child object at that point in the expression, but it refers to a collection of child objects. Why? What is the best way to get a list of parents that have no associated child or have a child fitting a particular condition? (My actual code will have one child max, so this sample code is not representative.)I just don't understand what the collection of FirstOrDefault could be referring to. It should really be just 1 value or nothing at all times.
View 1 RepliesInterface Be Implemented Across An Aggregate/composite Class In .net?
Mar 30, 2010VB.NET .NET 3.5 I have an aggregate class called Package as part of a shipping system. Package contains another class, BoxType . BoxType contains information about the box used to ship the package, such as length, width, etc. of the Box.
Package has a method called GetShippingRates. This method calls a separate helper class, ShipRater, and passes the Package itself as an argument. ShipRater examines the Package as well as the BoxType, and returns a list of possible shipping rates/methods.
What I would like to do is construct an Interface, IRateable, that would be supplied to the helper class ShipRater. So instead of:
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However, ShipRater requires information from both the Package and its aggregate, BoxType. If I write an interface IRateable, then how can I use the BoxType properties to implement part of the Interface?
Reference A Group Of Controls Inside A Group Box?
Jan 1, 2011I am writing an application and I do not know how to reference a group of controls inside a group box. I will include the code I have written so far and a picture with a detailed explanation as to what I am trying to do. Feel free to comment on any discrepancies that you may notice in my code.
Code:
Public Class Form1
' The following class-level constants are used
' to calculate the price of the model
Const decCOUPE As Decimal = 18000
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Remove All Items In A Listview Group And The Group Name?
Sep 25, 2011I want to remove a group (include all items in this group) in ListView, but unsuccessful, the code is below, why?
ListView1.Groups("GroupName").Items.Clear()
ListView1.Groups.Remove(ListView1.Groups("GroupName"))
Urgent Add Activedirectory Group To A Local Group?
Apr 6, 2011anyone have some quick code on how to do this?
wmi is not a option.
Add Calculated Field In Datagridview?
Jun 30, 2009i have data coming from sql server with two columns like total items, total packed items. Now in datagridview i want to show another column to calculate %age.Total Packed Items / Total Items Is it possible to add calculated column in datagridview?
View 4 RepliesCalculated Checksum Different Than C# Equivalent?
Feb 23, 2010This comparison shows the different values of the known good checksum calculation (c#) as used by my client and what I 'hoped' was the vb.net equivalent. How can I get 405 rather than 513 as I currently do?
For i = 0 To length - 2 Step 1
cksum += sendFrameData(i + 5)
Next i
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