Add A Variable From Custom Component
May 19, 2006
Hi
I am writing a custom transformation component that utilises a user variable.
Before using the variable at run time I am checking that the variable exists, but it would be nice to be able to add it if it does not. I cannot find any documentation on the subject, though I can see that the Variables class is derived from a ReadOnlyCollectionBase.
Is there a way to add a user variable with package scope from a custom component, either at run time or design time?
Thanks . . . Ed
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Jun 27, 2007
Hi all,
I am creating a customer data flow component for SSIS for use in a package. I've got some custom properties that I am exposing using the supplied advanced editor (no custom property editor here).
Some of my properties are enumerated types, and I have deciphered how to get those properties to show as dropdown lists of their respective enumerations. (For those of you who may be looking as hard as I did as to how to accomplish this, see the end of this post.)
I also have a few properties which request SSIS package variable names - such as an file name variable. However, I can't figure out how to tell the advanced editor that the property is looking for an SSIS variable, so that it can show a dropdown list of package variables, much like virtually any other Microsoft supplied Data Flow component can.
Is there a Type Converter I could specify for those custom properties? Is there another way to instruct SSIS that my custom property is expecting a variable? Or do I need to code a custom UI for editing my Data Flow Task?
To create a dropdown list of values for a custom property that represents an enum, do the following:
1. Create your enum definition, such as "public enum ThisIsMyEnum { one, two }"
2. Create a new class that inherits from TypeConverter, such as "public class MyEnumConverter : TypeConverter"
3. Override "CanConvertFrom", and return true if "sourceType == typeof(string)"
4. Override "CanConvertTo", and return true if "destinationType == typeof(string)"
5. Override "ConvertFrom", and return the enum value (such as "one" or "two" in my example) that corresponds to the string passed in the parameter "value"
6. Override "ConvertTo", and return a string that corresponds to the enum value passed in the parameter "value"
7. Override "GetStandardValuesSupported" and return true
8. Override "GetStandarValuesExclusive" and return true to indicate that ONLY the enum values should be accepted
9. Override "GetStandardValues", and return a new StandardValuesCollection constructed with Enum.GetValues() of your enum, such as "return new StandardValuesCollection(Enum.GetValues(typeof(ThisIsMyEnum)));"
10. Just above your "public enum" declaration, add a "TypeConverter" attribute to link your type converter to your enum, such as "[TypeConverter(typeof(MyEnumConverter))]"
11. In "ProvideComponentProperties", after you've created your custom property like this: "IDTSCustomProperty90 propEnum = ComponentMetaData.CustomPropertyCollection.New()", add another line to specify the TypeConverter property of the property to the full assembly name of your type converter, like so: "propEnum.TypeConverter = typeof(MyEnumConverter).AssemblyQualifiedName;"
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Aug 13, 2007
Hi all
I'm into a project which uses a lot of views for joining 2 or more tables. Using the MERGE component in SSIS will be a huge effort coz it only has 2 inputs and I gotta SORT the input too.
Isnt it possible to have a VIEW like component that joins more than 2 tables and DOESNT need sorting??
(I've thought about creating views in database engine but it breaks my data floe in SSIS and is'nt a practical solution)
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Mar 30, 2006
I am writing a custom dataflow transformation component and I need to get the name of the preceeding component.
I have been trying to find a way to get a reference to the Package object, MainPipe object or IDTSPath90 object (connecting to the IDTSInput90 of my component) from my component because I think from there I can get to the information I want.
Does anyone have any suggestions?
TIA . . . Ed
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Aug 14, 2007
Hi,
I've created a Custom Data Flow Component and added some Custom Properties.
I want the user to set the contents using an expression. I did some research and come up with the folowing:
Code Snippet
IDTSCustomProperty90 SourceTableProperty = ComponentMetaData.CustomPropertyCollection.New();
SourceTableProperty.ExpressionType = DTSCustomPropertyExpressionType.CPET_NOTIFY;
SourceTableProperty.Name = "SourceTable";
But it doesn't work, if I enter @[System:ackageName] in the field. It comes out "@[System:ackageName]" instead of the actual package name.
I'm also unable to find how I can tell the designer to show the Expression editor. I would like to see the elipses (...) next to my field.
Any help would be greatly appreciated!
Thank you
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Apr 2, 2007
Hi,
I'm trying to enable Expression for a custom property in my custom data flow component.
Here is the code I wrote to declare the custom property:
public override void ProvideComponentProperties()
{
ComponentMetaData.RuntimeConnectionCollection.RemoveAll();
RemoveAllInputsOutputsAndCustomProperties();
IDTSCustomProperty90 prop = ComponentMetaData.CustomPropertyCollection.New();
prop.Name = "MyProperty";
prop.Description = "My property description";
prop.Value = string.Empty;
prop.ExpressionType = DTSCustomPropertyExpressionType.CPET_NOTIFY;
...
}
In design mode, I can assign an expression to my custom property, but it get evaluated in design mode and not in runtime
Here is my expression (a file name based on a date contained in a user variable):
"DB" + (DT_WSTR, 4)YEAR( @[User::varCurrentDate] ) + RIGHT( "0" + (DT_WSTR, 2)MONTH( @[User::varCurrentDate] ), 2 ) + "\" + (DT_WSTR, 4)YEAR( @[User::varCurrentDate] ) + RIGHT( "0" + (DT_WSTR, 2)MONTH( @[User::varCurrentDate] ), 2 ) + ".VER"
@[User::varCurrentDate] is a DateTime variable and is assign to 0 at design time
So the expression is evaluated as: "DB189912189912.VER".
My package contains 2 data flow.
At runtime,
The first one is responsible to set a valid date in @[User::varCurrentDate] variable. (the date is 2007-01-15)
The second one contains my custom data flow component with my custom property that was set to an expression at design time
When my component get executed, my custom property value is still "DB189912189912.VER" and I expected "DB200701200701.VER"
Any idea ?
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Apr 21, 2006
1) We are writing a custome Source component for Oracle with OCI calls, Could some one please let me know how to Enable Error Handling for the Same,
2) Is it possible to write Custome Error Handeling Component for SSIS? if yes could you please help me on how to write it.
Thanks in advance.
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Aug 17, 2005
What I want to accomplish is that at design time the designer can enter a value for some custom property on my custom task and that this value is accessed at executing time.
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Mar 16, 2007
In a Data Flow, I have the necessity to use a SSIS variable of type €œObject€? inside Script Component and assign to it the content of 'n' variables of string type.
On exiting from the script the variable of type object should contain something like in the following lines:
AAAAAAAAAAAAAAAAAAAAAAAAAAAAA
BBBBBBBBBBBBBBBBBBBBBBBBBBBBB
CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
DDDDDDDDDDDDDDDDDDDDDDDDDDDDD
€¦€¦€¦€¦€¦€¦€¦.
€¦€¦€¦€¦€¦€¦€¦.
On exiting from the data flow I will use the variable of type Object in a Script Task, by reading each element in a cyclic fashion.
Is there anyone who have experienced something like this? Could anyone provide any example of that?
Thanks in advance!
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Apr 10, 2006
I've run into this a second time now. I'm hoping for some resolution AND guidance for proper build, save, etc. protocols in BIDS.
I've coded a custom component, included post-build procedures to add it to the GAC, selected it from the "Choose Items..." menu, and successfully added to a data flow. I've then been able to succesfully debug it.
This was all Friday afternoon. I shut down my BIDS session(s) and called it a week. This morning when I open BIDS, I get the following error when I attempt to add it to a data flow task:
TITLE: Microsoft Visual Studio------------------------------The component could not be added to the Data Flow task.Could not initialize the component. There is a potential problem in the ProvideComponentProperties method.------------------------------ADDITIONAL INFORMATION:Error at Data Flow Task [DTS.Pipeline]: Component "component "" (16)" could not be created and returned error code 0x80131600. Make sure that the component is registered correctly.------------------------------Exception from HRESULT: 0xC0048021 (Microsoft.SqlServer.DTSPipelineWrap)------------------------------BUTTONS:OK------------------------------
What would explain this? I'm new to VS/BIDS. Am I improperly shutting down my BIDS sessions? Is a save required for my code? Does "Build <component>" not automatically save?
Also, when I re-build a component after making a change to it, what do I need to do in my package's Data Flow task? Delete the current component, re-add it, and configure it again? I'm sure there are certain things that require one type of re-initialization vs. others (i.e., making a change to the Design Time code vs. making a change to code within the ProcessInput method.)
What can I do to properly register this now? I'm dead in the water and have no idea what to do. Any help's appreciated.
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Sep 26, 2007
Hi
I developed a €œdata flow source€? in my computer and it is ready!
It works in my computer, but how do I deploy this component in to the server? I have any programming environment on it.
Any Idea?
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Nov 20, 2006
Hi,
I was trying the SSIS programming samples,that comes with installation of SQL Server 2005, I want to load the ChangeCase DLL in the toolbox.
The readMe file gives the direction. It does not work. It says you will see component in once you see DataFlow Task button( clicking Choose Items in the tools box).
I cannot load the custom component to the toolbox, Can I get some help.
Thank you,
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May 10, 2006
Hi
in the acquireconnection method Using the below statment I can get a connection Object
oledbConnection = cmado.AcquireConnection(transaction) as OleDbConnection;
from the connection object I can get the connectionstring from the object by calling
oledbConnection.connectionstring() property which will have all the details like DataBase, UserName & other Inofrmation but there is no password Info.
How to get the password Information, I need that information since I will use that info to make OCI calls to fetch the data from the Oracle database in m,y custome source component.
any help is much appriciated
thanks in advance.
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Mar 23, 2006
Hi,I have developed a custom source component to get data from a generic odbc connection with some special caracteristics.
The component works fine by getting and mapping the output fields etc...
The only two problems existing are that when i run the task it says that the data flow has no components inside... how is this possible since i have my source mapped to a flat file inside that data flow?
This is the error:
SSIS package "BVEIT000D.dtsx" starting.
Warning: 0x80047034 at BVEIT000D_<EMPRESA> TXT, DTS.Pipeline: The DataFlow task has no components. Add components or remove the task.
Information: 0x4004300C at BVEIT000D_<EMPRESA> TXT, DTS.Pipeline: Execute phase is beginning.
SSIS package "BVEIT000D.dtsx" finished: Success.
The other problem is that if i want to <ignore> a certain source column the component already shows me an error saying that the no column with ID 0 was found...
Any one with experience in creating custom components?
Regards,
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Nov 9, 2007
Hi huys,
can you tell me how you create a MSI file for your custom component.
basically i've created a SSIS custom component, and i want to distiribute among a few people, i guess instead of providing step by step instructions it would be easy if they just clicked on packaged msi file.
i've seen many people putting their custom components on the web as MSI, how do you do it?
cheers
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Feb 7, 2006
Does anyone know how to get destination coulmns to show up in the advanced editor for a custom component? I have a custom flat file destination component that builds the output based on a specific layout. It works as long as the upstream column names match my output names. What I want is to allow non-matching columns to be mapped by the user as they can in a stock flat file destination. The closest that I have been able to come is to get the "column mappings" tab to show up and populate the "Available Input Columns" by setting ExternalmetadataColumnCollection.IsUsed to true on the input. The problem is that the "Available destination columns" box is always empty. I have tried the IsUsed property on the output and pretty much every other property that I could find. On the Input and Output properties all of my columns show up under the output as both External and Output columns. Is there a separate collection for "destination" columns that I can't find? It's getting a little frustrating, is this something that can be done or do I have to write a custom UI to make it happen?
Thanks!
Harry
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May 27, 2008
I've been trying to figure this out on my own for pretty much all of today, and part of last week. I've downloaded samples, searched this forum, blogs, etc. So I figured I would post, since it's the end of the day, and I'm not much further along.
I'm working on a custom transformation component, whose main function is to use SQL encryption/decryption to encrypt/decrypt data from the input columns, into the output columns. The component needs two strings, a key name and a certificate name, as well as the connection manager it should use to connect to SQL which will do the encryption/decryption.
Here's where I'm stuck:
1) How can I provide the key/certificate names via properties? What I'm expecting/looking for is a way to add these two properties at the component-level, which would show up under the "Custom Properties" section of the properties pane (currently, this only has one property, "UserComponentTypeName"). These key/certificate values will be used for all input columns.
2) How do I access the connection managers from within the component? What is the best way to go about using a connection manager from within my component to connect to SQL and perform the encryption/decryption? In a custom task, this was fairly simple, but it seems that same concept won't work on a transformation component.
3) Is there a better way to go about accomplishing this (column encryption via SQL from within SSIS)? Am I going about this all wrong?
As I said, I've searched for direction, but there seems to be next to nothing in the regards of a good reference for creating custom transformation components. I've looked at two MS samples, but can't seem to make any sense out of them.
Thanks in advance.
Jerad
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Nov 11, 2007
Hello.
I want to test my custom component with unit tests and i thought i must only initilize the component to play around with it. But when i calling the ProviderComponentProperties method and there the RemoveAllInputsOutputsAndCustomProperties method a NullReference exception is thrown. After debugging the test i had seen that the ComponentMetaData of the component is null. Is there a way to initilize the ComponentMetaData?
The Code of the Component looks like this:
Code Block
[DtsPipelineComponent(
DisplayName = "TestSourceAdapter",
ComponentType = ComponentType.SourceAdapter,
IconResource = "TestSourceAdapter.TestSourceAdapter.ico"
)]
public class TestSourceAdapter: PipelineComponent
{
public override void ProvideComponentProperties()
{
RemoveAllInputsOutputsAndCustomProperties();
IDTSOutput90 output = ComponentMetaData.OutputCollection.New();
output.Name = "TestSourceAdapter";
ComponentMetaData.OutputCollection
["TestSourceAdapter"].ExternalMetadataColumnCollection.IsUsed = true;
ComponentMetaData.ValidateExternalMetadata = false;
ComponentMetaData.UsesDispositions = true;
ComponentMetaData.Name = "TestSourceAdapter";
ComponentMetaData.Description = "TestSourceAdapter";
ReinitializeMetaData();
}
...
}
And in test i call only this
Code Block
TestSourceAdapter testAdapter = new TestSourceAdapter();
_testAdapter.ProvideComponentProperties();
i hope anyone can help
regards
kai
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Mar 27, 2008
Hi all. Can you help me? I'm trying to build a custom component that recieves two datasources (like for instance the union all) . I first started by adding a new IDTSInput90 in the ProvideComponentProperties, but when I tried to use the component I got an error that has very helpful :
===================================
The component could not be added to the Data Flow task.
Could not initialize the component. There is a potential problem in the ProvideComponentProperties method. (Microsoft Visual Studio)
===================================
Error at Data Flow Task [Replica Transformation [1289]]: System.Runtime.InteropServices.COMException (0xC0048004): Exception from HRESULT: 0xC0048004
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSOutputCollection90.get_Item(Object Index)
at MyCustomSSISComponent.SampleComponentComponent.ProvideComponentProperties()
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostProvideComponentProperties(IDTSManagedComponentWrapper90 wrapper)
===================================
Exception from HRESULT: 0xC0048004 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
Program Location:
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HandleUserException(Exception e)
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostProvideComponentProperties(IDTSManagedComponentWrapper90 wrapper)
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.ProvideComponentProperties()
at Microsoft.DataTransformationServices.Design.PipelineTaskDesigner.AddNewComponent(String clsid, Boolean throwOnError)
This is my ProvideComponentProperties:
Code Snippet
public override void ProvideComponentProperties()
{
RemoveAllInputsOutputsAndCustomProperties();
ComponentMetaData.UsesDispositions = true;
IDTSInput90 input = ComponentMetaData.InputCollection.New();
input.Name = "Staging Data";
input.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent;
IDTSInput90 input2 = ComponentMetaData.InputCollection.New();
input2.Name = "Replica Data";
input2.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent;
// Add the output
IDTSOutput90 output = ComponentMetaData.OutputCollection.New();
output.Name = "Replica Output";
output.SynchronousInputID = input.ID;
output.ExclusionGroup = 1;
// Add the error output
AddErrorOutput("StagingErrorOutput", input.ID, output.ExclusionGroup);
// Adds columns
AddXmlColumn();
IDTSOutputColumn90 column0 = ComponentMetaData.OutputCollection[1].OutputColumnCollection.New();
column0.Name = m_SyncStatusColumnName;
column0.SetDataTypeProperties(DataType.DT_STR, 1, 0, 0, 1252);
IDTSOutputColumn90 column1 = ComponentMetaData.OutputCollection[2].OutputColumnCollection.New();
column1.Name = m_AS400ImportedDateColumnName;
column1.SetDataTypeProperties(DataType.DT_DATE, 0, 0, 0, 0);
}
Since I'm new to SSIS I'm following Josh's SSIS Xmlify Data Flow Task sample.
Thanks.
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Dec 12, 2007
Is there a way to evaluate an expression (like the derived column component) in a custom component? If so where should I look first? Is there an example?
An extremely simple sample is to put in an expression and evaluate one column and then add that to another column to create a new column. i.e. newcolumn = column1 + column2.
I realize that the derived column allows me to do this but I'm trying to figure out if it is possible to do this in a custom component without having to build my own expression evaluator.
Thanks!
-Thames
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Jul 4, 2006
Imports System
Imports Microsoft.SqlServer.Dts.Pipeline
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Namespace SSISComp
<DtsPipelineComponent()> _
Public Class UpperCase
Inherits PipelineComponent
End Class
End Namespace
The above is fine, i.e. at least i get no IDE complaints. But, as soon as i try to make the attribute even remotely useful, i get Mr Squiggly and he no wanna go away. (and most of this is pulled from samples so I must be missing someyhing embarrasingly obvious:
This one will get you DisplayName is not declared
Namespace SSISComp
<DtsPipelineComponent(DisplayName = "Hello")> _
Public Class UpperCase
Inherits PipelineComponent
End Class
End Namespace
This one will get you Too many argumnets to Public sub New()
Namespace SSISComp
<DtsPipelineComponent(, , , "Hello", , , , , , )> _
Public Class UpperCase
Inherits PipelineComponent
End Class
End Namespace
So, what is the syntax for this
Note, we have a reference to Microsoft.Sqlserver.Pipelinehost (as well as dtspipelinewrap,dtsruntimerap,and managedts)
Clues please
Dave
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Jun 2, 2006
I have looked at everything I could find on custom components, and I'm still confused about what has to be implemented in ReinitializeMetadata. The first custom component I'm trying to build is very similar to the Audit component, a derived column synchronous transformation that should be able to create any non-empty subset of four types of output columns.
I haven't found anything that does much with the inputs, the samples all seem to rely on RemoveInvalidInputColumns. I haven't found any substantial explanation of what this method actually does, or whether there are cases it doesn't handle. If it really handles all problems on the input side I don't need to know the details, but I'd like to hear some confirmation that this is the case.
For outputs, most of the sample projects seem to just call the base method. Some projects throw out all the output columns and create new ones to match the input columns one-to-one. Project Real throws away all the output columns and external metadata columns and creates a standard set of output columns with external metadata. The RegEx sample project uses information in a component custom property to tell it what output columns to expect, then adds missing columns and deletes unwanted columns. All of these approaches are using some reference information to inform it which outputs belong and which don't. What do you do when there is no other reference, just the output column and external metadata column collections?
The description for this method is "fix the errors found in Validate", but these projects just delete everything that wasn't perfect and recreate anything missing. In cases where the number and types of output columns require some user configuration, maybe a few custom properties, it seems a little high-handed to throw it all away and make them start from scratch. Or do you assume that this method isn't called unless the component state is really screwed up? It seems to me that simply adding or deleting input and output columns in the Advanced Editor would trigger ReinitializeMetadata because the external metadata would be out of sync. If it reacted by immediately re-adding an optional default column you deleted, or deleting an unconfigured column you just added, it would be pretty annoying.
Assuming that I wanted ReinitializeMetadata to actually fix things, I have some specific questions:
1 If an output column is not mapped to an external metadata column (or mapped to a nonexistent emc), should the output column be deleted or should a matching external column be created?
2 Same question reversed, if an external column is not mapped to any output column, should it be deleted or a matching output column created?
3 Would it make sense to look for compatible unmapped output and external columns and remap them?
4 If the user adds or deletes an output column in the advanced editor, was that an output column or an external metadata column?
And another thing, is there a definative list of which methods should be marked as not cls-compliant?
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Jan 24, 2006
Hi,
Maybe I didn't search hard enough on BOL, but does Microsoft have a documented set of standards regarding custom component development for SSIS. Things like:
- extend this base class, implement this interface
- override these methods
- follow these naming conventions
- best practices
Thanks,
- Joel
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Aug 14, 2007
Hi all,
Is there any tutorial to learn how custom transformation component works? maybe a blog, pdf or something...
Specifically, i need to learn how to generate an output column composed from 3 input columns. The problem is i dont know how to set the column value... anyone have some sample code?
Thanks!
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Nov 8, 2006
I am writing a custom dataflow destination that writes data to a named pipe server running in an external process. At runtime, in PreExecute, I check to see if the pipe exists. If it does not exist I want to be able to fail the component and gracefully complete execution of my package.
Question is, how do I do this? If I make a call to ComponentMetaData.FireError() that will only create an OnError event and not actually stop the execution. So, how to I halt the execution of my component and return the error message?
Thanks,
~ Gary
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Aug 14, 2007
This is trivial I'm sure but I'll be dogged if I can find someone who mentions how to do it. I am attempting to develop a Data Flow Transformation that appends a new column (a string value) into the current stream.
I have found plenty of references on how to replace an existing column but I'd really like to just add my new column in there. It doesn't need to be configurable, it can be a static column name. I'll take a solution that allows the column name to be set at design time, don't get me wrong but the magic I'm looking for is how to implement a new column in a stream.
Yes, I am well aware of the derived column task but I will be replacing a few hundred instances and I'd much rather just drag an item onto the designer than to drag a derived column, double click it, type in the column name, set the expression and then set the datatype, etc.
Anyone spare a moment to enlighten me?
Pardon the lack of formatting, this BB doesn't play with Opera (I know, I'm a heretic)
using System;
using System.Collections;
using System.Runtime.InteropServices;
using Microsoft.SqlServer.Dts.Pipeline;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
using Microsoft.SqlServer.Dts.Runtime;
namespace Microsoft.Samples.SqlServer.Dts
{
[
DtsPipelineComponent
(
DisplayName = "Nii",
Description = "This is the component that says Nii.",
ComponentType = ComponentType.Transform
)
]
public class Nii : PipelineComponent
{
public override void ProcessInput(int inputID, PipelineBuffer buffer)
{
if (!buffer.EndOfRowset)
{
while (buffer.NextRow())
{
try
{
// do something here to
}
catch (Exception e)
{
ComponentMetaData.FireInformation(0, ComponentMetaData.Name, "There was an error on row " + buffer.CurrentRow.ToString() + ". The error is: " + e.Message + " : " + e.Source + " : " + e.StackTrace, "", 0, ref fireEventAgain);
}
}
}
}
}
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Mar 14, 2007
I am looking for some advice regarding saving custom component data when saving packages.
For custom "properties", this is not an issue, as saving the package will save these properties. Howver, I also have information for each column (besides the properties that columns provides, like Name and DataType) that I need to save if a package were to be saved, and right now it does not save because I am using my own objects to store the data.
I am wondering as to how I can save this information. I have looked up on serialization, but I would like to know if there is another way besides serialization to save this inforamtion as I'd rather not save this to a seperate file.
Thanks
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Feb 14, 2007
I have been building a custom component with the default GUI. I want to have all the input fields selected to be passed through to outputs without having to explicitly check each one in the GUI. Is there some method or property to set on the input to do this?
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Feb 26, 2008
Is there a way of disabling a custom property in a component so that during design-time the property is grayed out? I looked around the properties of IDTSCustomProperty90 and nothing sticks out.
Thanks
Mike
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Nov 17, 2006
Here is the situation. I have created a package that takes 50 columns from a comma delimited flat file. I then validate and clean the data. Next I add two columns that were not in the original source file. These two columns need to be in the 5th and 9th column position when the file is then re-written to a text file. How do i get those two columns to write out in the desired order? Any ideas?
K. Lyles
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Feb 12, 2007
Hi,
One of my plan is to develop a custom task compoent to log the errors into the destination provided as paramter to the component. Now how can I restrict the use of this component in the event handler tab only. can something like this be done?
Also extending this a little further, is the below thing possible?
The custom component should expose custom properties which should allow the user to add the destinations for logging the errors. It will be a predefined list (window event log, text file, sql table etc) and the user will be allowed to check what all he/she wants. Then if the user has selected sql table then ask for the oledb connection and the table name, if text file is selected the ask for the path of the file.
Apology if I am asking too many questions around the same thing (error handling). There may be a better way to acheive what I am trying to acheive but then I have no idea about it. Your guidance will be of great help.
Again, Thanks a lot for helping this extra curious guy who wants to try and develope generalized compoenents if possible.
Regards,
$wapnil
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Feb 9, 2006
Hi,
I am building a custom component have a IDTSCustomProperty90 property that can take the value 'True' or 'False'.
Depending on its setting, I want to include (or not include) a column in the output.
Any advice on how to go about doing this (with some sample code) would be much appreciated!
Here's how I'm declaring the property in ProvideComponentProperties()
IDTSCustomProperty90 IncludeErrorDesc = ComponentMetaData.CustomPropertyCollection.New();
IncludeErrorDesc.ExpressionType = DTSCustomPropertyExpressionType.CPET_NONE;
IncludeErrorDesc.Name = "Some Name";
IncludeErrorDesc.TypeConverter = typeof(Boolean).AssemblyQualifiedName;
IncludeErrorDesc.Value = Convert.ToBoolean(false);
Thanks in advance
-Jamie
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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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