Custom Code...For The Sake Of Argument
Oct 3, 2006
Is it possible to write custom code that achieves the same thing as an aggregate function?
ex: Calculating the sum of a group? (with out using the sum( field!one.value) function)
if I had a group that grouped on name.
Name Number
header Fields!FirstName.Value ************
details Fields!Number.Value
footer
Can i write a custom code function (or functions) that will get the sume of the numbers in that group.
Thanks in advance.
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Jan 25, 2013
Where did i do wrong in conversion
original query
dateadd(hour, datediff(hour,CONVERT(VARCHAR(19),B.CreateDate,111 ),B.CreateDate)
I tried to use convert(varchar(50),Datediff,21)
Below is the exact code..
convert(varchar(50),dateadd(hour, datediff(hour,CONVERT(VARCHAR(19),B.CreateDate,111 ),B.CreateDate),21)
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May 14, 2008
Hi There,
Could someone please tell me why I am getting the above error on this code:
select (replace
(replace
(replace
(replace (serviceType, 'null', ' ')
, '<values><value>', ' ')
, '</value><value>', ',')
, '</value></values>', ' '))
from credit
serviceType (text,null)
Thanks,
Rhonda
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Oct 16, 2007
Hi all,
Could someone tell me if custom code function can capture the event caused by a user? For example, onclick event on the rendered report?
Also, can custom code function alter the parameters of the report, or refresh the report?
Thanks.
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Apr 11, 2008
I often run into this situation where I need to load data into a data warehouse or data mart, and many times the data needs to be summarized or aggregated first, unioned/joined/merged with other data, pivoted, or have derived columns (e.g. % of totals, etc.) before arriving it the destination.
Because SSIS has all of these capabilities, I've developed packages that take each source table untouched and perform all transformations within the package itself, but if all the source data is coming from the same connection and source (often SQL Server), I can just as easily write a SQL query using all the power of the TSQL language to group, sort, pivot, use CTEs, derive columns, etc. and take it directly to the destination.
The advantage of the first method is you can easily migrate from one source type (e.g. relational DB) to another (eg. flat file) or deal with sources that do not have a SQL language to harness.
The disadvantage of the first method is it becomes more complex to develop and maintain, more points of failure thus more logging/error handling/debugging. Also, if source systems change, you cannot be guaranteed that the data will remain constant and thus need to modify the package anyways.
The advantage of the second method is speed. You have complete control over the optimization of the query against the relational source, and set operations will always outperform ETL because of the overhead involved.
The disadvantage of the second method is portability. If you change sources, you will have to rewrite the query, or abandon it altogether and create everything within the package anyways.
So my question is this: as a best practice and general rule, should you develop the ETL within the package and never use SQL statements, even if performance suffers and managability is impacted, or when you know the source system won't change (at least for the foreseeable future), should you harness the power of the relational engine and speed up (and simplify) your packages by using SQL queries?
I am posing this as a hypothetical question, and I know the answer "it depends", but I am currently working with a client that has packages that seem very convoluted (typical dataflow: source-aggregate-sort-merge-source-sort-merge-lookup-union-sort-merge-source-sort-merge-lookup-lookup-lookup-destination) when the data volume is small (< 100,000) and all tables are in the same database, and a simple SQL statement with a few joins, subselects, and group bys would accomplish the same thing, shaving 2 minutes off the process. Also when they modify the package, it inevitibly fails the first few times until the bugs are worked out, which may take a couple hours. The SQL statement can be run over and over again in SSMS to get the desired results, all within a matter of minutes, making the development process much more efficient.
So which is the better practice?
(sidenote: as a general practice, I typically stage all data first, so pulling from heterogeneous sources into a SQL Server staging area, so all data will then be sourced from SQL Server, eliminating the argument of "what happens if the source type changes" because the sources do change, but I handle that in my staging environment)
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May 17, 2007
I am trying to use custom code on a report which is:
Public Function Percentage(decValueOne As Double, decValueTwo As Double) As Object
If (decValueOne = 0 Or decValueTwo = 0) Then
Percentage = 0
Else
Percentage = (decValueOne - decValueTwo)
End If
End Function
In my textbox I have:
=Code.Percentage(SUM(Fields!PreviousYTDExpenseAmount.Value, "Template_OutputData_Sales"), SUM(Fields!PreviousYTDExpenseAmount.Value, "Template_OutputData_CGS"))
When I run the report in design mode, I get the "#Error" on that report field.
Any help with why this is happening would be greatly appreciated!
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Mar 21, 2007
Hey guys I have a problem I am trying to solve using custom code but I am open to other solutions.
Situation: I have multiple reports that the user can see. Example (Move In Corp. report, Move In Region report,Move In Division report, Mid Year Corp. report, Mid Year Region report,Mid Year Division report etc.) I have a stored procedure that returns all the information needed based upon the UserID being passed from the report to the stored procedure.
Goal: When the user logs in I want to be able to foward the user to a specific report based upon their userid (global in RS). I currently have three textboxes(Move In, Mid Year, Year End) with navigation enabled to jump to another report. The report to which the user is passed to is determined by an expression which is something like this for the Move In text box =IIF(Fields!orgtypeid.Value = 1,"Move In Corp","Move In Region"). The orgtypeid.value is returned by the stored procedure. I want to be able to forward the user a specific Move In report (Move In Corp, Move In Region, etc) without having the user select the textbox.
Any suggestions are greatly appreciated.
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Oct 24, 2007
Hello, this is probably a pretty easy one. I have made a report, and added custom code in the code tab on the report properties. But when I type code.whatever in a text box expression my function does not show. Does anyone know what I am doing wrong?
Thanks
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Jun 8, 2007
I am trying to find ways around the limitation of not being able to resize columns based on the text input. I am dynamically setting what values a column is getting from my query. I am wondering if I can access the table (and thus, the columns) from within the custom code.
For example:
Public Function Whynot() As Integer
Report.table1.TableColumn1.Width = ....
table1.TableColumn.Width = ....
Return 0
End Function
Neither of these seem to work, anyone else have any ideas?
Thanks
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Jun 11, 2007
Is it possible to do a redirect to an arbitrary page in by using custom code?
eg.
Public sub myRedirect()
response.redirect(http://www.microsoft.com)
End sub
/Alex
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Feb 21, 2008
I developed a ConnectionString assembly in custom code a while back. Now it won't work. I've changed boxes since. My question is do I have to have SQL Server and Reporting Services on my development machine to run Custom Code assemblies?
I put my dll in the PublicAssemblies folder. I see that I need to put my dll in C:Program FilesMicrosoft SQL Server80ToolsReport Designer but I don't have that folder.
When I try and set the ConnectionString to "=ReportingLibrary.ReportingLibraryFunctions.ConnectionString(User!UserID)", I get "Unrecognized Identifier." I checked the reference and it was still there from when the project was working before.
Code Snippet
using System;
using System.Security.Permissions;
using System.Configuration;
namespace ReportingLibrary
{
public class ReportingLibraryFunctions
{
public static string ConnectionString(string userName)
{
System.Data.SqlClient.SqlClientPermission oPerm = new System.Data.SqlClient.SqlClientPermission(PermissionState.Unrestricted);
oPerm.Assert();
string catalog;
string query;
string connectstring;
string datasrc = String.Format("Data Source={0};", ConfigurationManager.AppSettings["DataSource"]);
string userpwd = String.Format("User ID={0};Password={1};", ConfigurationManager.AppSettings["DBUsr"], ConfigurationManager.AppSettings["DBPwd"]);
query = "SELECT TOP 1 MyAcctKey FROM dbo.MyUserAcct WHERE UserName=@username;";
connectstring = String.Format("{0}Initial Catalog=MyMaster;", datasrc);
System.Data.SqlClient.SqlConnection connection = new System.Data.SqlClient.SqlConnection(String.Format("{0}{1}", datasrc, userpwd));
connection.Open();
System.Data.SqlClient.SqlCommand command = new System.Data.SqlClient.SqlCommand(query, connection);
command.Parameters.Add("@username", System.Data.SqlDbType.VarChar);
command.Parameters["@username"].Value = userName;
catalog = String.Format("MyDb_{0};", command.ExecuteScalar());
connectstring = String.Format("{0}Initial Catalog={1}", datasrc, catalog);
connection.Close();
return connectstring;
}
}
}
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Oct 19, 2007
I have been stuck in a problem for a while now. I am trying to count the number of groups. I tried soo many things and nothing worked . Now I want to try to write a function that does the counting for me.
Can somebody write me an example of a cutom code that can be called from expression.
So my custome code should be something like that
Public int CountFun(int counter)
{
Return counter= counter +1;
}
Also how do I call this method from my expression?
i am going to call it from a field inside the groups, so each time the group is implemented i add one to the counter.
thanks
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Sep 19, 2007
Is it not possible to have nested ifs in a custom code function? I keep getting an error message when I try it.
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Oct 3, 2006
I'm using a GAC-installed assembly as part of a Reporting Services
(2005) report. The code does not need any permissions beyond execution.
All it does it take today's date and calculate last week's start and
end date. It's all just datetime manipulations. All methods are static.
In
the VS2005 report designer, I can do everything fine. The code runs as
expected and defaults the parameters to the right date.
When I
upload the rdl to the Report Server, I get the message "Error during
processing of €˜Start€™ report parameter.
(rsReportParameterProcessingError) ". If I override the "Start"
parameter, it doesn't give me that error anymore. Start should be the
Sunday of the previous week.
I have deployed the signed assembly to the GAC on the report server as well as the bin folder for reporting services. Because it doesn't need anything beyond execution, I shouldn't have to modify any config files, right? I have already restarted IIS & the Reporting Services service.
What am I missing?
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Jun 25, 2007
Hello everyone,
I've got an issue where I want to sum the group values and not the details, the reason is because I am hiding duplicate records. Here's how my Layout is setup.
TH
GH1 (hidden)
GH2 (hidden)
Det (hidden)
GF2 =Code.AddValue(Fields!Quantity.Value * Fieds!Cost.Value)
GF1 =Code.ShowAndResetSubTotal()
TF =Code.GrandTotal
I have the following in my Code window.
Dim Public SubTotal as Decimal
Dim Public GrandTotal as Decimal
Function ShowAndResetSubTotal() as Decimal
ShowAndResetSubTotal = SubTotal
SubTotal = 0
End Function
Function AddValue(newValue as decimal) as Decimal
SubTotal += newValue
GrandTotal += newValue
AddValue = newValue
End Function
This gives me incorrect results and I can't figure out why. Here's how it shows on my report:
Part Number
Quantity
Cost
Regular Subtotal Method
Using Custom Code
Part 1
4,000
1.49
$5,947.20
Customer 1
$11,894.40
$0.00
Part 2
10
1.01
$10.07
Customer 2
$50.34
$5,947.20
Part 3
1
0.44
$0.44
Part 4
6,050
0.25
$1,530.41
Part 5
0
1.25
$0.00
Part 6
0
1.23
$0.00
Customer 3
$42,851.86
$10.07
Part 7
16,250
0.24
$3,922.59
Customer 4
$19,612.94
$1,530.85
Part 8
17,250
0.38
$6,544.82
Part 9
27,225
0.20
$5,380.20
Customer 5
$66,891.69
$3,922.59
Grand Total
$141,301.23
$0.00
The issues brought up from the duplicates is shown in the "Regular Subtotal Method" column (there are 2 detail records for Customer 1-Part 1, which is why it is doubled). I can't use a distinct on the SQL query because there are other fields (not shown) on the report that are different.
As you can see, the GF1 (Customer #) shows the subtotal from the previous group, and the Table Footer (Grand Total) shows 0. Why is this?
Jarret
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May 30, 2006
Hi guys,
i was developing some custom code to do a running total in a matrix, and i have noticed some odd behaviour with the InScope function. I am doing year on year reporting, so i have two row groups on my matrix: the first is on month (matrix2_Calendar_Month), the second on year (matrix2_Calendar_Year).
I needed to total the number of days covered by the months i was reporting on, so i wrote some very standard code to do this, along with an expression in that column of the matrix:
=IIf(
InScope("matrix2_Calendar_Year"),
CStr( Round( Sum(Fields!Sales.Value / (24 * Code.AddDays( CStr(Fields!Calendar_Month.Value), CInt(Fields!Calendar_Year.Value))), 2)) ,
Code.getBounds()
)
Code.AddDays() calculates and returns the number of days in the month of that year on that row. Code.getBounds simply returns the lower and upper bounds of the array, plus its contents (so i can inspect them). This is what is returned in the report:
Month / Year
Sales
Capacity
% Capacity
Avg $/h
February
2006
3842
7706
49.86%
2.86
2007
0
0
0.00%
0
March
2006
4949
8692
56.94%
3.33
2007
0
0
0.00%
0
April
2006
5160
8154
63.28%
3.58
2007
0
0
0.00%
0
May
2006
3309
8348
39.64%
2.22
2007
0
0
0.00%
0
Total
17259
32900
52.46%
0-8*28,28,31,31,30,30,31,31,28
If you look at the output in the total row, you will see that Code.AddDays() has been called one extra time at the end, with Feb 2006 as its parameters, thus adding an extra 28 days to the running total. Why is Code.AddDays called on the total row, when i should be out of the scope of both the row groups? (Note: this happens for whichever row group i use in the InScope check in the expression).
Here is the custom code used for all this:
Dim numDays()
Public Function AddDays(ByVal month As String, ByVal year As Integer) As Integer
Dim thisMonth As String
Dim upper As Integer
upper = 0
On Error Resume Next
upper = UBound(numDays) + 1
ReDim Preserve numDays(upper)
thisMonth = CStr(year) & "-" & month & "-01"
numDays(upper) = DateDiff("d", CDate(thisMonth), DateAdd("m", 1, CDate(thisMonth)))
AddDays = numDays(upper)
End Function
Public Function TotalDays() As Integer
Dim lower As Integer
Dim upper As Integer
lower = 0
upper = 0
On Error Resume Next
lower = LBound(numDays)
upper = UBound(numDays)
TotalDays = 0
Dim ii As Integer
For ii = lower To upper
TotalDays = TotalDays + CInt(numDays(ii))
Next
End Function
public function getBounds() as string
getBounds = Cstr(LBound(numDays)) & "-" & CStr(UBound(numDays)) & "*" & Join(numDays, ",")
end function
sluggy
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May 6, 2008
I have a custom C# assembly that my report is calling with embedded code that is called from fields in a reporting services table. The value comes back fine, but I need some of the values to be indented, so I have tried all of the following and every time the spaces are cut off. Spaces work when not using embedded code.
I tried the following in the table cell
=Space(3)+Code.<<String Function Name>>
and I tried
=" "+Code.<<String Function Name>>
Then I tried the code in the assembly and in the embedded code with the same result. No matter where I put the spaces they get cut off. Any ideas? I tried characters other than spaces and they came back fine.
Thanks,
Adam
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Jun 26, 2006
I'm trying to run a DTS package, and cant find an easy direct way to run it. It seems like the easiest solution would be to throw a custom error- then the server notices the error and runs a custom job, and the custom job runs the DTS. This is a roundabout way, but seems like it would be the simplest solution.Anyways, how do I throw the error in my code? Do I just write a throw 3829 statement? Also maybe this is a very bad way to do this- any suggestions?
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Apr 2, 2008
Hi,
Is it possible to connect to a database and fetch data from it from within custom code inside a report?
Appreciate any help.
Regards,
Asim.
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Jun 6, 2007
Hello,
Is it possible to add a multivalued parameter to a report from C#? I already have a C# .dll which I reference in the report. If so, could someone give some hints on how to do it?
As I searched the net for an answer to this, I came across ReportExecutionService. It looks like it's what I want, but I cant find the dll to reference in order to used this class. Does anyone know?
If it is not possible to do this from C#, then can someone please give an example on how to do it from Custom Code?
Thanks
/Peter
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Apr 21, 2007
HI all, I am having a problem while trying to create a list item through SSRS.The scenario:I have created a SSRS report which has custom code. the report has some parameters. The code accepts the parameters and tries to create a list item in moss. I have added the required references. This works fine as long as I work in VISUAL STUDIO IDE. When I deploy the report to report server it throws an error in the code.Can anybody help me in this...?Regards...
Girija Shankar
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Apr 26, 2007
Hello, I am about out of hair from pulling it out. If someone could please show me what I'm doing wrong I would really appreciate it. I have this function for a SSRS 2005 report:
Public Function funAdditions(pFields As Fields) As Double
if pFields !FA00902_AMOUNT.Value > 0 and
pFields !FA00902_TRANSACCTTYPE.Value = 3 and
pFields !FA00902_DEPRTODATE.Value > Parameters!BeginDate.Value and
pFields !FA00902_DEPRTODATE.Value <= Parameters!CutOffDate.Value and NOT
instr(pFields !FA00902_SOURCDOC.Value, "FACHG")=1
then return pFields !FA00902_AMOUNT.Value
end
else if pFields !FA00902_TRANSACCTTYPE.Value = 3 and
pFields !FA00902_DEPRTODATE.Value > Parameters!BeginDate.Value and
pFields !FA00902_DEPRTODATE.Value <= Parameters!CutOffDate.Value and
instr(pFields !FA00902_SOURCDOC.Value, "FACHG")=1
then return pFields !FA00902_AMOUNT.Value
end
End Function
...and after much research cannot figure out the solution to this error:
[rsCompilerErrorInCode] There is an error on line 1 of custom code: [BC30201] Expression expected.
I'm new to SSRS so is there a syntax error I'm missing?
Thanks in advance,
Buster
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Jun 6, 2007
I created a class library which uses a web reference
My SSRS report uses the class through its custom code
I copied the dll & dll.config of the class library to the VS2005 private assembllies and the report works
I copied the dll & dd.config to the reportserver bin and gave the assembly full trust by adding the necessary code group
I even added a code group the give the dll.config file full trust as well
Yet on Repost server, the report does not work
Any ideas
I suspect it is a permission problem
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Sep 20, 2007
OK. I created a few functions in a Public Class called SSRSFunctions. I built it and deployed it to my desktop. What do I do now? Can it be included as standard functions in the function list within SSRS? Do I add a reference to the Class at the solution level? At the report level? If all I do is add a reference at the report level, I may as well add the functions to each report's code window, which is what I have been doing. I'd at least like to add a single reference to my solution if I can't get it added to the function list.
Thanks!
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Oct 1, 2007
Hello Everyone,
I have a custom assembly which has a strong name, and I have deployed it in the GAC. I have also raised its trust level to Full Trust.
I have added a reference to this assembly from report properties.
when I try to use it, I get the error
[BC30451] name 'myUtil' is not declared.
Here myUtil is the instance name of the my class. (All methods are instance methods in my class and there are no static methods).
I found many people facing this issue, and the solution involved copying of the assembly in some privateassemblies folder. However that should not be the case with me as I have the assembly in the GAC.
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Dec 5, 2006
Hi!
I'm trying to create a custom conflict resolver for SQL Server 2000 in
C# but i can't seem to find any source code examples of a *.dll where i
can actually see what needs to be done.
Any help is welcome.
Thanks
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Feb 1, 2008
I created some custom code that will check to see if a file exists on a Windows Share.
Code Snippet
Public Function FileExists(ByVal FileFullPath As String) As Boolean
Try
Dim f As New System.IO.FileInfo(FileFullPath)
Return f.Exists
Catch e As Exception
Return e.Description
End Try
End Function
An example of what I am passing is this:
Code Snippet
\servernamesharenamefilename.txt
I use this code in a TextBox on my Report:
Code Snippet
=IIF(Code.FileExists(Fields!OutPutFileName.Value) = TRUE,"True","False")
I get this error in my report:
Code SnippetSystem.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.CodeAccessPermission.Demand()
at System.IO.FileInfo..ctor(String fileName)
at ReportExprHostImpl.CustomCodeProxy.FileExists(String FileFullPath)
The action that failed was:
Demand
The type of the first permission that failed was:
System.Security.Permissions.FileIOPermission
The Zone of the assembly that failed was:
MyComputer
BUT it works on my local machine. Any Ideas?
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Feb 21, 2008
Hi,
I am trying to retrieve and manipulate the value of the stored procedure parameters in the following custom code:
Code Snippet
Public Function ShowLoading(ByVal intOption as integer, byVal BasicLoading as string, byVal BasicHealthExtra as string, byVal RiderLoading as string, byVal RiderHealthExtra as string, byVal TotalAmount as string) As string
dim strRider as String
dim strCompanyName as string
strCompanyName = Fields!CompanyName.Value
select case strCompanyName
case "and Plus Rider ":
strRider = "Plus Rider"
case "and Assist Rider ":
strRider = "Assist Rider"
end select
return strRider
End Function
However, i got this error when I try to preview the report: An error occurred during local report processing, The definition of the report :
'/reportC' is invalid. There is an error on line 5 of custom code: [BC30469] Reference to a non-shared member requires an object reference.
Any help is greatly appreciated. Thanks in advance.
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Sep 12, 2007
I created a report in SQL Server 2005 using SQL Server 2005. I added a custom code to the report as:
function getpiececount_parent(byval qb_prodcode as string,byval s_date as string,byval e_date as string)
dim conn as new System.Data.SqlClient.SqlConnection
conn.ConnectionString= "Data Source=xxxx;Initial Catalog=xxxx;User Id=xxxx;Password=xxxxx "
conn.open()
dim sql as string
sql="select query using parameters"
dim cmd as new System.Data.SqlClient.SqlCommand
cmd.connection=conn
cmd.commandtext=sql
cmd.Parameters.AddWithValue("@stDate",s_date)
cmd.Parameters.AddWithValue("@edDate",e_date)
cmd.Parameters.AddWithValue("@qbprodcode",qb_prodcode)
dim retval =cmd.ExecuteScalar()
if retval is system.dbnull.value then
retval=0
end if
cmd.dispose()
conn.close()
return retval
end function
For the above function I added reference to the System.Data . The report works as desired when I execute in the VS 2005 IDE but when I deploy the report on the reporting server and execute it from there the function doesn€™t execute and returns me #Error.
Can any one provide some insight into it to as to how i can resolve this issue.
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Nov 21, 2006
Hi there,
A simple question I hope. I have got a textbox on a report and I'm trying to populate it by calling a custom assembly. I know I can reference it directly in the textbox (this works) but I am trying to do this from the code block. The following code didn't work:
Protected Overrides Sub OnInit()
ReportItems!textbox2.Value = POCCustomAssembly.CustAssembly.Hello()
End Sub
The TextBox is called textbox2 and the custom assembly simply returns a string.
I get an error message "The is an error on line 1 of custom code: [BC30469] Reference to a non-shared member requires an object reference".
What am I doing wrong?
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Jan 2, 2008
Hi there!
For setting different languages on the column haeders i need to access a dataset from a custom code function call. I want to pass a parameter to the function that will allow me to find a specific item in the dataset - like a lookup function. I cannot find a way to get access to the entire dataset and to iterate through its components.
Is there any solution? Every hint will be helpful!
Thanks, Torsten
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Dec 17, 2007
Hi experts,
I have a custom code that successfully query my database in SSRS 2005 report.
However, I am hard coding its connection string (in the custom code) and I want it to be able to use the same connection string as the ones that the report use. This information is available in my registry setting, but if it is possible, I want to avoid that, since I aim for a quite simple solution. If I am able to get the connection string details at the report level or from within the custom code, it would be great.
Anybody have a suggestion? Anything would be really appreciated.
Thanks
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Apr 28, 2008
Hi,
I have a report that needs sorting on a column that is calculated. however, the calculation is so complex (iterative calculations) i've had to do that within my custom code. I am getting the results back well and good but i cannot perform a sort based on that.
My problem is: how do i write a custom sort expression function that will direct the column to sort my table based on say the value(s) returned from that function. I want for example:
Code Snippet
Public Function mySortExpression(byVal myIDorWhatever as Something) as CustomSortableExpression
' Perform some calculation
' Return some value(s)/array or anything that the column can appreciate and sort the table accordingly with
End Function
then in say the Interactive Sort Sort Expression, i'll have the code:
Code Snippet
=code.MyClass.mySortExpression(myID)
I hope i've made myself clear enough.
Cheers
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