Creating Error Output For Custom Components
Feb 14, 2006
Hi,
I have a 2 custom components - source and destination.
I want to create an error output for each, to allow the users of my component to handle errors the way they choose.
I only found a property in IDTSOuptut90 named isErrorOut - a boolean property indicating whether this output is an error output or not.
Does anyone have additional documentation / articles / code samples regarding how to really populate the rows in the error output?
Thanks
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Jun 25, 2006
Hi All,
I am not sure if this is a correct forum to discuss on the document posted @ http://www.microsoft.com/downloads/details.aspx?familyid=1c2a7dd2-3ec3-4641-9407-a5a337bea7d3&displaylang=en on SQL Server Integration Services (SSIS) Hands on Training - Creating Custom Components.
I am assuming Microsoft Developers are constantly monitoring this forum.
In the document - SSIS Creating a Custom Transformation Component .doc on Page 2 -
Exercise 1 - Writing the no-op data flow transformation component -
Task 1 - Create a new C# Class Library Project
The textual description talks about creating a new Visual C# Class Library project in VS 2005 but the screenshot accompanying it shows the creation of new "Integration Service Project" in VS 2005.
Please change the screenshot appropriately to avoid confusions.
Thanks,
Loonysan
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Sep 7, 2006
Everything I've read says that custom data flow components are built by inheriting from the Microsoft.SqlServer.Dts.Pipeline.PipelineComponent class.
But the stock components such as the Derived Column data flow transformation must each be implemented by their own class. So how do I base my custom components on those classes? The documentation for the PipelineComponent class doesn't list any such subclasses.
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Aug 14, 2007
I would like my transformation to automatically create an output column for each input column. Any tips? I can't seem to determine which event to listen to or method to override.
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May 11, 2006
For the Custome source Component ErrorOutput, should I go for asynchronous / synchronous Output.
If i go for synchronous output
// Create the error output.
IDTSOutput90 errorOutput = ComponentMetaData.OutputCollection.New();
errorOutput.IsErrorOut = true;
errorOutput.Name = "ErrorOutput";
errorOutput.SynchronousInputID = What Id is required here;
errorOutput.ExclusionGroup = 1;
Is it the IDTSOutput90 InPut.ID / OutPut.ID which should be assigned.
Thanks Regards
Anil
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Dec 6, 2007
Hi all,
I saw a couple of other posts here on this topic, but none quite got to my issue.
I'm trying to add error output to a custom source component (not a script, a custom component). The samples all seem to deal with transform components, and my issues seem to be unique to source components.
I have the following code related to error handling ...
Public Overloads Overrides Sub ProvideComponentProperties()
...
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection.New
output.Name = OUTPUTCOLUMNNAME
output.ExternalMetadataColumnCollection.IsUsed = True
ComponentMetaData.UsesDispositions = True
output.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
output.ErrorOrTruncationOperation = "Something got truncated or blew up"
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection.New
errorOutput.Name = ERRORCOLUMNNAME
errorOutput.IsErrorOut = True
...
End Sub
Public Overloads Overrides Sub ReinitializeMetaData()
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection(OUTPUTCOLUMNNAME)
Dim outColumn As IDTSOutputColumn90 = output.OutputColumnCollection.New
outColumn.Name = strName
outColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
Dim metadataColumn As IDTSExternalMetadataColumn90 = output.ExternalMetadataColumnCollection.New
metadataColumn.Name = outColumn.Name
metadataColumn.DataType = outColumn.DataType
metadataColumn.Precision = outColumn.Precision
metadataColumn.Length = outColumn.Length
metadataColumn.Scale = outColumn.Scale
metadataColumn.CodePage = outColumn.CodePage
outColumn.ExternalMetadataColumnID = metadataColumn.ID
outColumn.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
outColumn.ErrorOrTruncationOperation = "Something Truncated!"
outColumn.TruncationRowDisposition = DTSRowDisposition.RD_NotUsed
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection(ERRORCOLUMNNAME)
Dim errorColumn As IDTSOutputColumn90 = errorOutput.OutputColumnCollection.New
errorColumn.Name = outColumn.Name
errorColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
...
End Sub
The confusions I have are:
a) the stock advanced properties editor (I haven't provided a custom one) doesn't seem to "realize" that I have an error output, so provides no method to configure. I am believing it would need to know which Output columns can have their error/truncation redirected. I'd have thought setting ErrorRowDisposition on my output column would have been enough to trigger this ??
b) since I don't have any means of configuring, not surprisingly, when I try to connect my error output, designer complains that, "Ths error output cannot receive any error rows. This occurs for several reasons: Input columns or output columns are not yet defined. Error handling is not supported by the component. Error handling is not configured for the component."
c) UsesDispoistions would seem to be appropriate only for a transform component
Thanks for reading, and appreciate any help or pointers.
Bill
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Jan 22, 2008
Hi again, All!!
I'm having a problem with problems with some custom components I built. I have a custom Connection Manager and Data Flow Source that I have built.
My local PC is 64-bit, but I followed the MS instructions on building and deploying custom components. They run fine inside of VS2005, as long as I have 'Run64BitRuntime" set to 'False'. When I try to run packages using the custom components in 64-bit mode, I get:
Error: 0xC0014005 at : The connection type "<MyConnectionManagerType>" specified for connection manager "PRI" is not recognized as a valid connection manager type. This error is returned when an attempt is made to create a connection manager for an unknown connection type. Check the spelling in the connection type name.
I suspect I need to either change the way I build or deploy the custom components. Can someone shed some light on this?
Thanks,
Frank
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Jun 15, 2007
Is it possible to create a custom SSRS .NET component that can view the report parameters and values contained within?
Thanks!
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Mar 13, 2006
Hello,
I had an idea that it would be nice to be able to extend the functionality of an existing SSIS component or task by inheriting from it. Perhaps in a similar way to how it is possible to extend user controls in .Net.
e.g. The rowcount is a useful component but it would be good to create a new component that inherits from it and then override the PostExecute() method to fire an Information event containing the number of rows. That's a very simple example but I think you get the gist.
Does anyone think that would be useful? Or even made possible?
I was also wondering whether it would be possible for the SSI team to make all the icons used within SSIS available as .ico files so that we could modify them for tasks/components that might do similar things.
Thanks
-Jamie
[Microsoft follow-up]
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Oct 10, 2007
Hi,
As a hobby, I am creating custom SQL Server Integration Services components, which are installed as an add-on to out of the box components. They are mainly used to reduce the development time and minimize the maintance overhead. I would like to know, how I should market them? What are the mediums to use? Since this is the first time, I am creating a software for mass markets, I would really appreciate your help while marketing this baby.
Just FYI, the first commercially available package that I develop is for creating text based files. My package connects to any OLE DB datasource. Executes the query and stores the output in a text file. It is very useful while developing database driven custom feeds. Instead of working with multiple dataflow tasks, data flow sources, you just need to configure one single component and the rest is taken care for you. Since, the package implements the standard Microsoft Task Editor, it is very easy to learn.
Thanks for your help.
Cem
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Jun 30, 2006
Hi,
Is it possible to make use of VB.Net for Applications and the VBA editor from your own Custom Transform Components (like the script component does)?
I would like to create a component that generates boiler-plate VBA code and that then allows developers to add their own specialised code in certain methods using the editor (just like the script component)
If so, is there any documentation anywhere on how to go about this?
Thanks in advance,
Lawrie
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Jul 17, 2006
Is it possible to use versioning at all with SSIS components?
My experience so far is that I have not figured out how version them at all, because if I change the version number, then apparently the <property name="UserComponentTypeName" ...> has to be changed in every single reference to the component, in every dataflow, in every single dtsx file that uses the component at all -- this will be a tremendous headache as some of this stuff is in source control. It seemsl clearly infeasible to check out and substitute and change all these references, and check them all back in, except very infrequently -- surely not feasible to do it for each small change.
I am in the habit of versioning dlls and assemblies, and actually changing at least a minor build number for each actual change, so I am a bit unhappy to find that apparently I cannot feasibly do this for a custom SSIS component :(
(I just find a dislike at apparently being forced to leave the version number invariant when I make code changes.)
What I would be very happy with, is if there were a way to adjust all the references in all the dtsx files, to refer to only the major and minor build numbers say, specifying that I am not picky about the revision numbers below those, so that it will find the latest component in the GAC matching the major and minor numbers.
That way I could still update the component version with each code change, which would make me happy, and not have to edit a zillion dtsx occurrences (not having to do that would also make me happy).
Anyone know if that is possible?
I'm hoping it is, and that it is only my ignorance at component references preventing me from doing so.
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Dec 4, 2007
I've been trying to find a solution to adding javascript and/or HTML to a report (not reportviewer). After a search I found that you can add javascript to a textbox under action properties and it works fine. Is there a way to add custom code anywhere on the page.
The problem is the charts that come with SRS is limited so I'd like to add my own. I'd also like to add some ajax functionality as well. I know it's possible because a company called Dundas is doing it but not exactly sure how they implemented it. We considered Dundas but they are just too expensive for the solution we need.
Any help would be much appreciated.
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Sep 7, 2007
Is there a way to use a custom component programmatically (I'm using C# to create and run my packages) without installing a compiled .dll of the class into the SQL folders and the GAC? For instance, can I instantiate my custom component and somehow pass it to be used in a task in my code.
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May 21, 2006
I need VB.NET source code showing how to create a Custom Component. in SSIS (All the ones I've seen are written in C#.)
TIA,
barkingdog
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Apr 11, 2008
Hi all,
I'm wondering if anyone's accomplished this before - I've been unable to find a whiff of info on how to do this so far.
I'm creating a custom component that I'd like to give a "Derived Column" type of ability to. By that, I mean I'd like to populate a property of my component with an expression (including references to input columns, package variables and functions) and be able to evaluate it at runtime - per row processed by the component.
I would also appreciate any information as to how to provide the interface to allow the user to build such an expression as well - is there a UI function in SSIS I can call to pop up the "expression builder"?
Thanks!
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Nov 15, 2007
I have a SQL Server 2005 Package (32 bit, 4 processors/16 GB of RAM, 3 GB switch for SSIS) with 1 DataFlow and 5 Custom Components:
> An OLEDB Source that reads a stoed proc from Sybase
> 3 Transform Components that perform: 6-required fields check, 4-lookups (3 cached, 1 non-cached), and a calculation that is performed(called) from a .NET Library.
> A SQL Destination that uses the .NET BulkCopy Class to insert the data.
It takes about 3 hours to load 1 million records that contain 46 columns (the largest being a varchar(100)). I have tried a good number of tuning options as well as indexing/SQL techniques to improve perfromance.
Some pieces of info:
1) We dynamically create the buffer during runtime based on an SSIS variable.
2) The actions of the components are determined at runtime through config files.
We do these two things so we can have multiple data flows run through the same package for better scalability and flexibility. Since we are dynamically creating the buffer I can NOT use any of the out of the box components because of lineage and metadata inconsistency issues.
3) I noticed on PerfMon that I am spooling buffers to disk after 100K rows.
I realize this is bad, but what are my alternatives?
Should I go to 64 bit? Is there anything else I can do?
Thanks in advance,
Anthony
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May 28, 2008
Whenever I make a breaking change to a custom SSIS component/tasks and update the Assembly Version, it seems to break my packages beyond repair, telling me it can't load the task:
Error loading Package1.dtsx: Error loading a task. The contact information for the task is "". This happens when loading a task fails.
All of the properties of said task now show:
Could not get value for property 'c-155-designer-name'. Specified cast is not valid.
Typically, a "breaking" change when it comes to code just means that you need to update your components to adhere to the new contract of the updated signatures. But with SSIS, it seems the only solution to this is to completely remove the component, and re-add the new version, and re-enter all of the property values/expressions. If I have a package containing 10 instances of a task that only had one property removed, for example, this results in a very time-consuming process of fixing my package.
So my questions:
1) Am I doing something wrong in my versioning/deployment that is causing my packages to unnecessarily break?
2) If this is just "by design" and the way it's meant to behave, what is the best practice for making breaking changes to custom tasks/components used by many packages? Should I just never change the assembly version, even when it is a breaking change (this seems to be less disastrous)?
3) As a last resort, if I'm stuck with having to fix the broken tasks, is there a better way to fix them rather than having to completely remove them, re-add them, and re-set all of their properties/expressions?
Thanks in advance.
Jerad
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Mar 29, 2007
I've been having an issue with the integration of a third-party DLL into a custom data flow component.
The company sent me a C# project that generates a simple console application. The project includes a class that calls their DLL with DllImport. The console application runs fine.
I created a stand-alone class using the C# class they sent to expose the methods of their DLL. In my custom component, I'm referencing this class to pass data to and from their DLL.
The first method from that stand-alone class that my component encounters simply gets their installation path from the registry and does not use DllImport. That path retrieval works fine. The next method calls a function that is declared with DllImport. Each time the call fails with "System.DllNotFoundException = {"Unable to load DLL AMZip.dll': Exception from HRESULT: 0xE06D7363"}".
I've copied this DLL to countless locations (e.g., the PipelineComponents directory, the project/solution bin directory) and included these paths in all manner of path variables.
What am I missing here? Their DLL is not strong named (does this matter since I'm using DllImport?), my stand-alone class is, and of course, the custom component itself is. I appreciate the help.
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Jun 30, 2006
Hi,
Can anyone tell me where I might find the Class and Sequence Diagrams for the SSIS framework (for Custom Components)?
I've just started trying to create some Custom Transform Components and
I'm really struggling to get my head around the component lifecycle
(i.e what methods are called when, with what arguments, and why) with
just the BOL documentation to guide me.
Thanks in advance,
Lawrie
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Feb 12, 2007
Hi,
In my case I have to log the errors raised by any task in a package to either windows event log, text file or SQL server. Also I need to send an email notifications to a group of people telling them about the error.
Now can I use SSIS package logging for logging the errors into the required destinations. I mean right clicking on the package and selecting Logging, then adding the required log providers and enabling the events for logging into those. I think I have to upfront select the log providers to log the error, I will not have the liberty to log the error to the destination, the name of which is passed as a variable to the package. This is okay with me though.
Now what will a custom log provider help me to do in this case. Also can I somehow configure my package to call the send mail task everytime an error is raised.
Also, one more option can be developing a package that only does the error handling. It will take in the paramters or the error codes and descriptions, the destination to write to and a flag to send mail or not for that particular type of error.
What do you think? Kindly advise.
Thanks in advance for your help and time.
Regards,
$wapnil
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Mar 27, 2007
Hi Guys,
I created a SSIS custom component, transformation (Asynchronous) with one Input collection and 2 output collections.
The SSIS Package which includes the Component I created works well in the Business Intelligence Studio, but when the same Package is run in the 'Execute Package utility' It fails to run. ( when you Double click on the dtsx file)
The cause of the failiure is
public override void PrimeOutput(int outputs, int[] outputIDs, PipelineBuffer[] buffers)
method receives only one output buffer when executed using the 'Execute Package Utility' { outputs = 1 , buffer.Length = 1 } ( when executed in the BI studio, the method receives parameters of both the output buffers that I expect { outputs = 2 , buffer.Length = 2 } )
The property ComponentMetaData.OutputCollection.Count = 2 as well. Yet the PrimeOutput method provides only 1 buffer.
The Validation Succeeds on both instances, which I assume means that Meta Data is Provided Properly.
What would be the reason for the same pakage to run in 2 different ways like this,
What might I have missed out to do, to make the package run in different ways on 'Business Intelligence Studio' and 'Execute Package Utility'
Thanks a lot
Below are some of the lines from the ProvideComonentProperties Method which deals with the output Collection, Isn't this sufficient for the PrimeOutput to provide 2 output buffers?
ProvideComponentProperties()
public override void ProvideComponentProperties()
{
RemoveAllInputsOutputsAndCustomProperties();
base.RemoveAllInputsOutputsAndCustomProperties();
base.ProvideComponentProperties();
//other function calls
IDTSOutput90 output1 = ComponentMetaData.OutputCollection[0];
output1.Name = "Output1";
output1.Description = ".......................";
extracted.SynchronousInputID =0;
IDTSOutput90 output2 = ComponentMetaData.OutputCollection.New();
output2.Name = "Output2";
output2.Description = "..........................";
output2.SynchronousInputID = 0;
//other function calls
}
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May 14, 2014
creating a custom column that will put a list of 5 values for each unique value(or in this case Employee).
So I have a Employee table were I pull a list of all active employees -
Example -
024Swanson, Ronrswanson@tv.com
026Donaughy, Jackjdonaughy@tv.com
028Scott, Michaelsmichael@tv.com
What I want to do is add a column that has 5 values and create a row for each value
I want it too look like this -
024Swanson, Ronrswanson@tv.com a
024Swanson, Ronrswanson@tv.com b
024Swanson, Ronrswanson@tv.com c
024Swanson, Ronrswanson@tv.com d
024Swanson, Ronrswanson@tv.com e
[Code] ....
Currently all my query looks like is this -
SELECT EmpID, LastFirst, Email
FROM dbo.EmpList
WHERE (Active = 1)
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Mar 27, 2008
Hello everyone!
Even though I am not "new to SQL Server", my experience in working with it has ebbed and flowed, and working with SQL Server is not something that happens for me even on a monthly basis.
I work as an in-house programmer for a financial investment company and I have been asked to work on a database that is to hold financial data.
One of the requirements for the tables has been that the Primary Key should be [name_of_the_table] + [Identity].
So, for example, for table "tblEquities", the values of the Primary Key would be:
PK
-------
tblEquities1
tblEquities2
tblEquities3
tblEquities4
tblEquities5
My questions are:
1) Is it possible to achieve this by using just one column, as in defining a formula for the "Computed Column Specification" , something that would look like "'tblEquities' + Identity()"?
2) If the above is not possible, I assume it's much easier to just define a column as being Identity column and then create a 2nd computed column that would aggregate the name of the table with the value in the Identity column, so that I end up with a column holding the desired values? (I guess it would look something like
"'tblEquities' + [Identity]")
Also, I have been asked to find out what SQL 2005 have/offers, in term of guaranteeing referential integrity. Are the "Database Diagram", as well as the "Relationships" dialog box, the tools that would meet that criteria or does SQL 2005 contain other tools that would help in this regard?
Thank you!
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Oct 4, 2006
I have a package that is going to have roughly 20 sequence containers in it. Each of these containers is going to have the same start task and the same end task. The data flow task(s) in each sequence container will differ. So I was thinking I would create a custom sequence container that would implement the common steps I need in each of my containers. I started to create a task that would inherit from Sequence, but I found that it is sealed. Bummer.
What is involved in creating a sequence task by inheriting from Task? I see that Sequence implements IDtsSequence. But looking at this interface, it seems like I would have to build the logic to execute the workflow contained in my sequence.
Any pointers?
-Darrell
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Jun 26, 2006
Would anyone happen to have any pointers or know of any good code examples to either programmatically change the type of an input column when it is passed through the component, or add a new column to the output? I am extracting data from an Oracle database which is in Julian date format (represented within SSIS as a DT_NUMERIC column) and I need to to either transform the input column holding it into a date column, or to dynamically add a new output column holding the transformed data.
Many thanks
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Apr 17, 2006
I'm having a tad bit of trouble getting output from an asynchronous component that I've written and am looking for some insight.
This component takes in a name string passed from upstream and parses the name components into standardized output fields. I'm using an asynchronous component because if the name string contains two names ("Fred & Wilma Flintstone") I'm outputting one row for Fred and one for Wilma. I've gotten it to run and with debugging have observed what appeared to me to be proper execution, but zero rows are flowing out of it.
In my ProvideComponentProperties method, I add the three fields and there associated metadata to the OutputColumnCollection. Is this method where this should occur? It's before the PrimeOutput method, so I didn't know if I should be creating the output columns in ProcessInput (i.e., after the output buffer is provided by PrimeOutput.)
In ProcessInput, I'm using AddRow for each input row and another if it contains a second name, setting the value for each index using the buffer's SetString method, to no avail. I can observe it to this point, but then don't know what's in that output buffer (if I'm using the wrong buffer index value, etc)
Thanks.
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Aug 28, 2007
I'm trying to create a fairly simple custom transform component (because I've read that's the easiest one to create) which will take one column from a flat file source and based on the first row create the output columns.
I'm actually trying to write a component that will solve the now well known problem with parsing CSV files in SSIS. I have a lot of source files and all have many columns so a component that can read in the first line from the CSV file and create the output columns automatically will save me lots of time when migrating the old DTS packages.
I have the basic component set up but I'm stuck when trying to override the OnInputPathAttached method because I don't know how to use the inputID to get the first line from the input (the buffer).
Are there any good examples for creating output columns dynamically based on the input buffer?
Should I just give up on on the transform and create a custom source component instead?
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Jun 30, 2006
Hi,
In another thread Jamie Thomson very informatively said "The components in SSIS
are deliberately atomic (i.e. they do something very specific) so that
its easy to put them together to build something greater than the sum
of the parts". Which does make a lot of sense. However, I've been finding that I end up having to create exactly the same "pattern" of combined transform components again and again in order to solve the same problem but in different dataflows (or even within the same dataflow). Cut-and-paste-tastic! In order to obtain real re-use, it seems to me like SSIS is crying out for an easy way to create new components by using composition - i.e. the ability to take commonly-used combinations of existing components and create new "super" components (without having to write Custom Transform Components in C#/VB.Net and handle everything in code).
Does anyone know if this sort of functionality is likely to make it into SSIS in the forseeable future?
Regards,
Lawrie
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Aug 30, 2006
I've built a simple custom data flow transformation component following the Hands On Lab (http://www.microsoft.com/downloads/details.aspx?familyid=1C2A7DD2-3EC3-4641-9407-A5A337BEA7D3&displaylang=en) and the Books Online (ms-help://MS.MSDNQTR.v80.en/MS.MSDN.v80/MS.SQL.v2005.en/dtsref9/html/adc70cc5-f79c-4bb6-8387-f0f2cdfaad11.htm and ms-help://MS.MSDNQTR.v80.en/MS.MSDN.v80/MS.SQL.v2005.en/dtsref9/html/b694d21f-9919-402d-9192-666c6449b0b7.htm).
All it is supposed to do is create an output column and set its value to the result of calling a web service method (the transformation is synchronous). Everything seems fine, but when I run the data flow task that contains it, it doesn't generate any output. The Visual Studio debugger displays it as yellow, with 1,385 rows going into it, but the data viewer attached to its output is empty. The output metadata looks just like I expect: all of my input columns plus the new column, correctly typed. No validation or run-time warnings or errors are reported.
I'll include the entire C# file below, which only overrrides the ProvideComponentProperties, Validate, PreExecute, ProcessInput, and PostExecute methods of the parent PipelineComponent class.
Since this is effectively a specialization of the DerivedColumn transformation, could I inherit from the class that implements the DC component instead of PipelineComponent? How do I even find out what that class is?
Thanks! Here's the code:
using System;
// using System.Collections.Generic;
// using System.Text;
using Microsoft.SqlServer.Dts.Pipeline;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
namespace CustomComponents
{
[DtsPipelineComponent(DisplayName = "GID", ComponentType = ComponentType.Transform)]
public class GidComponent : PipelineComponent
{
///
/// Column indexes for faster processing.
///
private int[] inputColumnBufferIndex;
private int outputColumnBufferIndex;
///
/// The GID web service.
///
private GID.WS_PDF.PDFProcessService gidService = null;
///
/// Called to initialize/reset the component.
///
public override void ProvideComponentProperties()
{
base.ProvideComponentProperties();
// Remove any existing metadata:
base.RemoveAllInputsOutputsAndCustomProperties();
// Create the input and the output:
IDTSInput90 input = this.ComponentMetaData.InputCollection.New();
input.Name = "Input";
IDTSOutput90 output = this.ComponentMetaData.OutputCollection.New();
output.Name = "Output";
// The output is synchronous with the input:
output.SynchronousInputID = input.ID;
// Create the GID output column (16-character Unicode string):
IDTSOutputColumn90 outputColumn = output.OutputColumnCollection.New();
outputColumn.Name = "GID";
outputColumn.SetDataTypeProperties(Microsoft.SqlServer.Dts.Runtime.Wrapper.DataType.DT_WSTR, 16, 0, 0, 0);
}
///
/// Only 1 input and 1 output with 1 column is supported.
///
///
public override DTSValidationStatus Validate()
{
bool cancel = false;
DTSValidationStatus status = base.Validate();
if (status == DTSValidationStatus.VS_ISVALID)
{
// The input and output are created above and should be exactly as specified
// (unless someone manually edited the persisted XML):
if (ComponentMetaData.InputCollection.Count != 1)
{
this.ComponentMetaData.FireError(0, ComponentMetaData.Name,
"Invalid metadata: component accepts 1 Input.",
string.Empty, 0, out cancel);
status = DTSValidationStatus.VS_ISCORRUPT;
}
else if (ComponentMetaData.OutputCollection.Count != 1)
{
this.ComponentMetaData.FireError(0, ComponentMetaData.Name,
"Invalid metadata: component provides 1 Output.",
string.Empty, 0, out cancel);
status = DTSValidationStatus.VS_ISCORRUPT;
}
else if (ComponentMetaData.OutputCollection[0].OutputColumnCollection.Count != 1)
{
this.ComponentMetaData.FireError(0, ComponentMetaData.Name,
"Invalid metadata: component Output must be 1 column.",
string.Empty, 0, out cancel);
status = DTSValidationStatus.VS_ISCORRUPT;
}
// And the output column should be a Unicode string:
else if ((ComponentMetaData.OutputCollection[0].OutputColumnCollection[0].DataType != DataType.DT_WSTR) ||
(ComponentMetaData.OutputCollection[0].OutputColumnCollection[0].Length != 16))
{
ComponentMetaData.FireError(0, ComponentMetaData.Name,
"Invalid metadata: component Output column data type must be (DT_WSTR, 16).",
string.Empty, 0, out cancel);
status = DTSValidationStatus.VS_ISBROKEN;
}
}
return status;
}
///
/// Called before executing, to cache the buffer column indexes.
///
public override void PreExecute()
{
base.PreExecute();
// Get the index of each input column in the buffer:
IDTSInput90 input = ComponentMetaData.InputCollection[0];
inputColumnBufferIndex = new int[input.InputColumnCollection.Count];
for (int col = 0; col < input.InputColumnCollection.Count; col++)
{
inputColumnBufferIndex[col] = BufferManager.FindColumnByLineageID(input.Buffer, input.InputColumnCollection[col].LineageID);
}
// Get the index of the output column in the buffer:
IDTSOutput90 output = ComponentMetaData.OutputCollection[0];
outputColumnBufferIndex = BufferManager.FindColumnByLineageID(input.Buffer, output.OutputColumnCollection[0].LineageID);
// Get the GID web service:
gidService = new GID.WS_PDF.PDFProcessService();
}
///
/// Called to process the buffer:
/// Get a new GID and save it in the output column.
///
///
///
public override void ProcessInput(int inputID, PipelineBuffer buffer)
{
if (! buffer.EndOfRowset)
{
try
{
while (buffer.NextRow())
{
// Set the output column value to a new GID:
buffer.SetString(outputColumnBufferIndex, gidService.getGID());
}
}
catch (System.Exception ex)
{
bool cancel = false;
ComponentMetaData.FireError(0, ComponentMetaData.Name, ex.Message, string.Empty, 0, out cancel);
throw new Exception("Could not process input buffer.");
}
}
}
///
/// Called after executing, to clean up.
///
public override void PostExecute()
{
base.PostExecute();
// Resign from the GID service:
gidService = null;
}
}
}
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Hi folks, i need ur guidance.
I have a few DDL and DML scripts which i want to be automatically applied during MSDE setup; or an .MDF file be attached automatically. Please suggest an easier way!
Howdy!
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I currently have a website which is using ASP.NET 2.0, C#, and SQLServer 2005. The website will be used to enter grants for auniversity. When a new grant is entered, I need to generate a primarykey. The primary key will need to follow the format: Two digit forfiscal year, then number of the grant for that year. Example:Year 08 and 14th grant of the year would be: 0814How can I implement this. Right now, I have a "New Grant.aspx" pagewith a Submit button. I am guessing the date is going to be formattedin C#. How can I check what the last primary key in the database is?Also, it seems to me that SQL Server insists that the primary key be32 bits long, however my primary key will only be 4. How can Ioverride this? Thanks.
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