I am developing an ASP.Net c# 4.0 application and am working towards a cross-tab report which will return a dynamically changing number of columns, like so:
Sales Region| ProductA|ProductB|ProductC|........
NorthEast| 10,000 | 3,000 |2,000 |........
SouthEast| 3,000 | 6,000 |2,500 |........
...................................................
...................................................
TOTAL | 100,000| 32,500 |7,800 |........
There is a non determined number of products and regions, so the table returned will have a variable number of columns and rows.
How can I design such a report in Visual Studio 2010, RDLC designer? I have already designed my stored procedure returning the results, but designing the table adapter to return the results gives me no columns (as they are not known).
I think you need a "matrix" report.
This tutorial might help you.
Unfortunately you probably need to rewrite the query (I believe you already used PIVOT to obtain the current query).
Checkout this link http://www.gotreportviewer.com/matrices/
You can use matrix for your solution. Since you need total with each column so you don't need to sum each column individually. It will create rows and columns dynamically as per the datatable records.
Related
I have created a report with Data Studio taking values from GA and I have defined a table with several data like age, sex, hour, total users and transaccions.
At the end of the table it shows the total of transactions which are 8 and this data is correct. But If I seek this transactions in the table I only found 2.
Here you can see the table ordered by transactions and you can see how there is only 2.
And these are the sources of the data of the table:
Am I doing something wrong? How can I get the eight transactions in their own column?
Edit I:
The table are ordered descendent by the column "Transactions" (Transacciones) so all the transactions are showed in the first rows. In this case, we've got only 2 transactions.
In string 'Total' Data Studio shows Total not for your split, but just Total (Yes, it's strange). Test it in this way: create a new widget contains only 'Users' or 'Transactions'. You will see that number is the same as in your table in 'Total'.
You have 10 per page, change this view to match the total number of records. The reminder are likely on following pages
I try to add a new calculated column to sharepoint list that will show elapsed day. I enter name and write a formula like;
=ABS(ROUND(Today-Created;0))
The data type returned from this formula is: Single line of text
When I want to save I get an error like
Calculated columns cannot contain volatile functions like Today and
Me.
Calculated Column Values Only Recalculate As Needed
The values in SharePoint columns--even in calculated columns--are stored in SharePoint's underlying SQL Server database.
The calculations in calculated columns are not performed upon page load; rather, they are recalculated only whenever an item is changed (in which case the formula is recalculated just for that specific item), or whenever the column formula is changed (in which case the formula is recalculated for all items).
(As a side note, this is the reason why in SharePoint 2010 you cannot create or change a calculated column on a list that has more than the list view threshold of 5000 items; it would require a mass update of values in all those items, which could impact database performance.)
Thus, in order for calculated columns to accurately store "volatile" values like "Me" and "Today", SharePoint would need to somehow constantly recalculate those column values and continuously update the column values in the database. This simply isn't possible.
Alternatives to Calculated Columns
I suggest taking a different approach entirely instead of using a calculated column for this purpose.
Conditional Formatting: You can apply conditional formatting to highlight records that meet certain criteria. This can be done using SharePoint Designer or HTML/JavaScript.
Filtered List views: Since views of lists are queried and generated in real time, you can use volatile values in list view filters. You can set up a list view web part that only shows items where Created is equal to [Today]. Since you can place multiple list view web parts on one page, you could have one section for today's items, and another web part for all the other items, giving you a visual separation.
A workflow, timer job, or scheduled task: You can use a repeating process to set the value of a normal (non-calculated) column on a daily basis. You need to be careful with this approach to ensure good performance; you wouldn't want it to query for and update every item in the list if the list has surpassed the list view threshold, for example.
I found some conversations about this issue. Many people suggest to creating a new Date Time column, visible is false, default value is Today's Date and it will be named as Today. Then we can use this column in our formulas.
I tried this suggestion and yes error is gone and formula is accepted but calculated columns' values are wrong. I setted column Today is visible and checked, it was empty. Default value Today's Date was not working. When I looking for a solution for this issue I deleted column Today carelessly. Then I realized calculated columns' values are right.
Finally; I don't know what is trick but before using Today keyword in your formulas if you create a column named as Today and after your formula saving if you delete Today column, it is working.
UPDATE
After #Thriggle's answer I realized this approach doesn't work like a charm. Yes, formula doesn't cause an error when calculated column saving but it works correctly only first time, in the next day the calculated column shows old values, because its values are static as Thriggle explained.
I need to create a donor summary report that provides total donations by donor by year.
I need to provide
name address email yr1total yr2total etc...
It looks like salesforce only allows two columns in row headings and two columns in column headings. Is there a way to work around this
Or, is there a way to use the tabular report to do the same?
TIA
If donations is a single field on the donor's record, it seems like what you're looking to do is attempt to display two columns for the same data within a report. The best way to do this (well, outside of creating a master-detail relationship with a new custom object named "Donations") would to have formula fields for each of the donation years, and calculate the donation sums in each of them. That is, as long as you have a way of calculating the year of the donation.
I believe to get the best answer, more information is needed.
Something like this? This will work if your donation is a separate object that's linked to Account (I've used Tasks & Events linked to Accounts in my example).
Create a report in "Matrix format".
Drop Account Name on the left pane, Donation's Date on the columns.
Columns will default to days. Click the dropdown in the place where I have "Created Date" and select summarizing by year (of course fine-tune to whatever you need).
Check date ranges / filter criteria etc obviously if you don't see all data.
Click Show -> Hide details.
Drop your "Donation Amount" or similar field into place where "Record Count" is displayed. Use "Sum".
Optionally deselect Show -> Record Count.
Now you're mentioning that there are only 2 columns so you probably already tried this. Well, common trick is to cheat by using a formula field that would hold your data (separated by comma maybe?). Tabular report would require you to create some helper fields (1 per year) on Account and do some kind of rollup summaries, messy.
If it's for a dashboard you could play with summary report (it can have more groups than 2) and pick chart type table on the dashboard...
I'm sorry if this seems silly, but I'm new to using Report Definition Language (RDLC) files and I'm looking for advice on the best "plan of attack" for a report I must create.
THE REPORT
The report (itself) must display a table of data above a related set of calculations for each a grouping (of data). I'm hoping to keep one group per page...but that may not be possible as each table may become quite long (but that is another question for another day).
...There can be 1 to N GROUPS
Example
(GROUP 1)
TABLE
FORM CALCULATIONS
PAGE BREAK
(GROUP 2)
TABLE
FORM CALCULATIONS
...and so on.
IS THIS THE BEST WAY TO DO THIS?
Place each group into a SUBREPORT. The sub report would then contain the table & form calculations.
...is this right or is there a better way to do this?
THE ACTUAL ANSWER IS
The outer RDLC contains a LIST control which contained the following controls:
TABLE (containing items related to the collection as a whole)
SUBREPORT
The SUBREPORT points to an RDLC which contained the following controls:
TABLE (containing row items)
(1) Use the LIST's "grouping" property to group your 1-to-N collections. The "grouping" property is found by choosing the LIST control then choosing Visual Studio's menu options as such: VIEW > PROPERTIES WINDOW.
(2) Next, set the LIST's data source.
This is found using by choosing the REPORT and then choosing Visual Studio's menu options as such: REPORT > DATA SOURCES. Drag any field onto the control and the data source will automatically set itself up.
NOTE:
If you cannot "see" any data sources in Visual Studio's data sources window it is "probably" because service references in your project are causing issues...temporarily exclude them from your project and choose RESFRESH icon within Visual Studio's data sources window (they should then appear). Sadly, you must do this EVERY TIME your data source changes.
Once you have the LIST iterating properly you can add-in the SUBREPORT and any other controls.
...I now OFFICIALLY hate RDLC's.
personally if i had to do this report i will do it with two different tables. In one rdlc you can put two datatables one will display GROUP 1 Data the second one GROUP 2 Data. The Table has option Page break at end of datatable which can give the PAGE BREAK Between the two datatables.
Best Regards,
Iordan
I am working on an auto trade website. On the page where Ad list gets displayed, I plan to display the number of Ad for different categories: for example, for location: I will display something like "Vancouver (50), Richmond (12), Surrey (20)". For vehicle make, the following will be shown "Honda (20), Ford(12), VW (24)".
I am not sure if I should pull ALL the ad from the db into a List first, bind one page of the result to gridview control, and then compute stats for each category using Linq. if course I will limit the number of rows pulled from the db using some kind of condition - maybe set the MAX # of rows to be returned as 500.
My major concern is - is this going to be a memory hog?
It is bad idea to count rows in the memory. Use
SELECT COUNT() FROM... [ GROUP BY ]
which is much more efficient.
Also review possibility to cache these values. Assuming that multiple people loads your page simultaneously, but count of cars don't changes quicker then once per 1 minute - apply caching strategy to obsolete values over 1 min.