Custom Task Not Updating Property Values Or Saving.
May 2, 2008
Hi Folks,
I have a task I wrote which does not always update the property value (as seen in the properties pane)
Basically, change something on the form, then update the task host property with:
this.taskHostValue.Properties["Duration"].SetValue(this.taskHostValue, Convert.ToInt32(spnDuration.Value));
Stepping through this, it does exactly what it is supposed to. Having a look at the property value, it confirms it has changed.
Reopening the UI and resetting all the controls returns the expected results.
The package however does not realise it has changed. There is no * next to the package name in the top tabs.
As long as the package thinks it is unchanged, SaveXML does not get called either so the tasks do not persist.
Changing the value on the properties pane works fine though.
The frustrating thing is this is slightly random. Slight in the sense that sometimes it works but most of the time it does not.
The sample code I used was the MS download IncrementTask (Which works BTW) so I can't see it as being a VS / SSIS bug but rather something I am / am not doing. 3 tasks I have written all behave the same. I have to "nudge" them before savign the package.
Any ideas what the problem might be?
TIA
Cheers,
Crispin
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Apr 17, 2008
Hi,
I developed a simple custom control flow component which has several read/write properties and one readonly property (lets call it ROP) whichs Get method simple returns the value of a private variable (VAR as string). In the Execute method the VAR has a value assigened. When I put the value of ROP or VAR into MsgBox I can see the correct value. However when I execute the component I can not see the value of the ROP in the property window. I see the property but its value is empty string. For example when I put a breakpoint to postexecute or check the property before click OK in a MsgBox I would expect that the property value would be updated in SSIS as well. Is there a way how to display correct values of custom tasks properties in property window?
Thanks for any hints.
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Aug 16, 2006
I am writing a custom task that has some custom properties. I would like to parameterize these properties i.e. read from a varaible, so I can change these variables from a config file during runtime.
I read the documentation and it says if we set the ExpressionType to CPET_NOTIFY, it should work, but it does not seem to work. Not sure if I am missing anything. Can someone please help me?
This is what I did in the custom task
customProperty.ExpressionType = DTSCustomPropertyExpressionType.CPET_NOTIFY;
In the Editor of my custom task, under custom properties section, I expected a button with 3 dots, to click & pop-up so we can specify the expression or at least so it evaluates the variables if we give @[User::VaraibleName]
Any help on this will be very much appreciated.
Thanks
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Jul 5, 2007
I wrote a custom task following the outline on MSDN. I signed it and installed it into the Tasks folder and in the GAC.
When I go to an SSIS project and add my task, the properties window shows "Could not get value for property 'd61935d9-430b-4c93-9f3e-a29f720d8659'. Specified cast is not valid." (where the guid is different obviously) for many of the properties.
What have I done wrong?
Update: I know this isn't my code because I tried a simple task that just returns success and doesn't do anything. I get the exact same errors, so I must be installing it incorrectly.
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Apr 21, 2006
I'd like to be able to hold onto lineageIDs in a list in the custom property of an output object. I found that I can really only easily use an array which is fine but now that I have coded it I cannot set any of the array values programatically. I can't even initialize the array the way I want it. I also cannot change the value in the debugger, it just pops back to zero.
Am I missing something? Here's how I'm trying to do it:
IDTSCustomProperty90 linIDsProperty = output.CustomPropertyCollection.New();
linIDsProperty.Name = "KeyColumnLineageIDs";
linIDsProperty.Value = new int[MAX_KEY_COLS];
for (int i = 0; i < ((int[])linIDsProperty.Value).Length; ++i)
((int[])linIDsProperty.Value)[i] = -1;
(please ignore the \ around the [i], the forum changes [i] into for some reason)
Thanks
Charlie.
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Sep 19, 2007
Hi,
I am facing a very strange issue with the Send Mail Task:
I am fetching the recipient from a Recordset and storing it in a variable (MailList).
Now, I modify the Send Mail Task to include an Expression which updates the "ToLine" property with the email address in the "MailList" variable.
Moreover, I am not hard-coding the "To" property in the "Mail" tab of "Send Mail Task Editor" and leaving it blank. Now, it does not allow me to execute the package and gives me a "Package Validation Error" saying: No recipient is specified.
Any solutions?
Thanks in advance.
Regards,
B@ns
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Sep 21, 2006
We have a built a custom control flow task that we use frequently. It has a simple user interface form where we can set certain properties. Problem is, after I configure it once and then copy and paste it all of the internal property settings seem to be lost on the newly pasted task. When I open up the editor for the task all of the properties are displayed visually in the editor form, but the properties pane is empty.
How can this be corrected?
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May 24, 2007
I've created a custom task, and now I want to upgrade it. There's actually no change in the task itself, but I've changed the assembly version number, and now I need to upgrade all the tasks that reference the old version number.
So I rebuilt the task, and I created a policy assembly with a bindingRedirect that forwards to my new assembly. I removed the old version of the assembly from the GAC. All good so far - I've even run the task through the debugger, I open the package as "Reload with Upgrade", and the breakpoints in my CanUpdate, Update and Version overrides are being hit fine. This approach works fine in my custom pipeline components, and the PerformUpgrade override updates the UserComponentTypeName to reflect the new assembly version number (see Milen's post in http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=893641&SiteID=1).
But the task itself won't upgrade, or at least, it seems to require the old assembly version number. I get an error message:
Code SnippetThe task with the name "My Task" and the creation name "xx.xxx.MyTask, xxx.xxx, Version=0.1.0.0, Culture=neutral, PublicKeyToken=xxxx" is not registered for use on this computer.
Has anyone got any ideas what I'm doing wrong? I've got 40 or so packages with 2 tasks in each, and I don't really want to have to delete and add them to each one ...
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Jul 6, 2007
HI,
I need to open a File through File connection manager and want to assign these file properties to SSIS precreated varibale or Newly created varibale. I want to show file properties in Propertygrid. Properties grid will conatin File Propeties Column and SSIS varibale Combobox column. The combo box will contain New variable field. When user select New Variable field, then a new SSIS varibale window will open and we can able create New variable and that Newly created variable should add to that property comboBox.
For Instance if we create a new varibale Name "Creationdate" by clicking on New Varible in ComboBox, then that CreationDate variable should add to Property ComboBox in PropertyGrid. After adding when we select that variable Name "Creationdate" then that selected file Creation date should assign to SSIS varibale "Creationdate" field.
Any Comments or sample will help me.
Nitin
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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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May 12, 2015
I am writing my first custom SSIS task and I can see that, if I put a public property into the task, I see that property in the standard Properties window. If I add a property of type String, I can put a value in that property, in the task code, and when I instantiate the task in a package, I can see the value I entered.
To try and get a drop down list property in the Properties window, I declared a property of type Combobox, and indeed a drop down list appears in that property.
My problem is trying to get values in that property. I have used the test items:
Property.Items.add("Fred")
Property.Items.Add("Jim")
But I do not see the values in the drop down list. All I do see is one item with a value of "(none)".
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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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Oct 18, 2006
I have a custom transform, with a custom property of value 1. My question is, can I change that value during runtime with the value from a variable?
Thanks
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May 20, 2007
Is there any way to provide a readonly custom property in the ProvideComponentProperties() method of a custom PipelineComponent implementation?
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Feb 4, 2008
Hi
I have one problem in SSIS for passing Variable Values while executing Package. I'm giving in details as below:
I opened Microsoft SQL Server Management Studio
Made Connection to Integration Services
To Execute Package I Right Clicked and Click on Run Package
Then I Clicked on Execute and package was executed successfully.
Problem is that if I try to Set Values then Package through Error
DTExec: Could not set ProcessMode value to M.
Basically I could not understand in which format I should pass the Variables.
What I tried is listed below:
ProcessMode;M
Package.Variables[User:rocessMode].Value;M
Package.Variables[ProcessMode].Value;M
But every time I got errors.
And then I tried from Command Line
DTEXEC /DTS "MSDBLoad_Order" /SERVER SERVERNAME /MAXCONCURRENT " -1 " /CHECKPOINTING OFF /REPORTING V /SET Package.Variables[ProcessMode].Value;M
First time Process run successfully. And it has changed the ProcessMode to M also. But after that it was also not changing the ProcessMode Value to M.
Please help in regarding. I tried a lot from Site examples also, but could not get proper solution.
Thanks in advance
Bhudev
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Dec 6, 2005
Hi,Using VB.net I have created a custom object (hope my terminology is correct here), it’s just a class that defines a few string, integer, and hash table variables. After creating an instance of this class and populating it with data I need to be able to store this instance of my object in a sql server data base table. How do I do this? I saw an article that used the image data type to achieve this (code was in java unfortunately) is this the correct approach. Could you please give me some code examples
Thanks
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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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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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May 28, 2008
I have set a validation error when changing a property in the advanced editor. Unfortunately this validation error is only displayed when you change tabs or press the ok button in the editor.
I have tried calling the validate method within the setcomponentproperty method but the error only show up when ok button is pressed or tab in editor.
I don't want to throw an exception, is there any way you can show a validation error immediately once the user has clicked away / entered / clicked to another property field after entering a property value in the advanced editor that is incorrect.
Thanks
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Oct 15, 2006
Im working through the MS example of "removeDuplicates". I cant seem to figure out how to add custom property for input column.
I added the helper method:
private static void AddIsKeyCustomPropertyToInput(IDTSInput90 input, object value)
{
IDTSCustomProperty90 isKey = input.CustomPropertyCollection.New();
isKey.Name = "IsKey";
isKey.Value = value;
}
I call it from:
public override void ProvideComponentProperties()
{
//...
AddIsKeyCustomPropertyToInput(input, false);
//...
}
public override void ReinitializeMetaData()
{
IDTSInput90 input = ComponentMetaData.InputCollection[0];
if (input.CustomPropertyCollection.Count == 0)
{
AddIsKeyCustomPropertyToInput(input, false);
}
// ...
}
However when I deployed it and added the component to SSIS package - I cant see the Custom Column "IsKey" in the input column properties window.
What am I missing - please help
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Apr 27, 2007
Hello all...
I am working on a project that contains several databases in SQL and many settings. The problem I am encountering is that I want to be able to update the program for all my customers. That is no problem.
The problem I am meeting is where, when the program is updated, all the settings and all the information in the databases reverts to the default values, or the values that were compiled with the new update.
I want to be able to update their program without deleting all the settings they have.
Thanks,
Andreas Renberg
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Oct 8, 2007
I'm developing an custom dataflow transformation task that involves mapping of columns between multiple inputs and outputs. All the mappings are stored in a dataset. At first I thought to store this to an variable but after reloading bids I get an schema not found on xml for the stored dataset. Then I tried to put the dataset into an custom property but that seems to only take strings.
So how do I save the info on the mappings contained in my dataset (as that is most easy while using a datagrid to display mappings) in the package preferably in a way that is not visible to the user.
In short: What is the proper way to save complex datatypes in a custom dataflow task using a custom ui?
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Feb 24, 2006
Hi,
I have an application where I'm filling a dataset with values from a table. This table has no primary key. Then I iterate through each row of the dataset and I compute the value of one of the columns and then update that value in the dataset row. The problem I'm having is that when the database gets updated by the SqlDataAdapter.Update() method, the same value shows up under that column for all rows. I think my Update Command is not correct since I'm not specifying a where clause and hence it is using just the value lastly computed in the dataset to update the entire database. But I do not know how to specify a where clause for an update statement when I'm actually updating every row in the dataset. Basically I do not have an update parameter since all rows are meant to be updated. Any suggestions?
SqlCommand snUpdate = conn.CreateCommand();
snUpdate.CommandType = CommandType.Text;
snUpdate.CommandText = "Update TestTable set shipdate = @shipdate";
snUpdate.Parameters.Add("@shipdate", SqlDbType.Char, 10, "shipdate");
string jdate ="";
for (int i = 0; i < ds.Tables[0].Rows.Count - 1; i++)
{
jdate = ds.Tables[0].Rows[i]["shipdate"].ToString();
ds.Tables[0].Rows[i]["shipdate"] = convertToNormalDate(jdate);
}
da.Update(ds, "Table1");
conn.Close();
-Thanks
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Aug 10, 2007
Hi All
2 post in a row first time in ages so i must be getting better but i get stuck on crappy little things like this hopefully
I have data in the following format
4.1399999999999997
4.2400000000000002
5.4800000000000004
5.1799999999999997
6.7699999999999996
i want to select the data as such
4.13
4.24
5.48
5.17
6.76
I keep chasing my tale on this one around and around any one got a simple idea i am missing, you would not believe how much time i have spent on this.
Cheers
Phil
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May 21, 2008
What is equivalent to dynamic property task of dts2000 in SSIS 2005;
Thanks
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Aug 10, 2005
I am using CTP 15 and have created an extremely simple FTP task. I enter three pieces of information:
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Sep 7, 2007
I am learning SSIS, and am trying to save the XML output from a SQL task executing a stored procedure. I need to either save it to a .xml file, then FTP the .xml file to an external server, or do the reverse (FTP, then save file.) I can't get past the SQL task so that it works with the File System Task, or the FTP task.
Here is the stored procedure
Create Procedure [dbo].[HRGCSpace]
(@HRGSpace nvarchar(max) = ''Output)
as
Begin
Set NOCOUNT On
set @HRGSpace = (select
CustomerNumber 'CustomerNumber/@id',StartDate 'StartDate/@id', EndDate 'EndDate/@id',Action 'Action/@id',
WorkZoneNumber 'WorkZoneNumber/@id',BuildingName 'BuildingName/@id',BuildingFloorPlan 'BuildingFloorPlan/@id',
FloorName 'FloorName/@id',FloorFloorPlan 'FloorFloorPlan/@id',SpaceName 'SpaceName/@id',VacantUnit 'VacantUnit/@id',
SpaceFloorPlan 'SpaceFloorPlan/@id',Address1 'Street/@id',Address2 'Street2/@id',City 'City/@id',
StateProv 'StateProv/@id',ZIPPost 'ZipPosCode/@id',MoveOutDate 'MoveOutDate/@id'
from HRGCvCorrigoUnits
order by BuildingName, SpaceName
For XML Path ('Space'), Root('HRGSpaces'))
End
--------------------------------------
Here is the execute from the SQL Task
DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HRGSpace Output
If I define the SSIS variable User::HRGSpaces as string, Direction = Output, Parameter Name = 0, Parameter Size = 0
, then use in the SQLTask
General ResultSet = None, Bypass Prepare = True, Connection Type = OLE DB, IsQuery Stored Procedure = False,
Parameter Mapping for User::HRGSpaces,Direction = Output, Parameter Name = 0, Parameter Size = 0
the Progress is
"Progress: Executing query "DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HR". - 100 percent complete
Task Execute SQL Task - select the XML Output failed
Error: The wrapper was unable to set the value of the variable specified in the ExecutionValueVariable property.
If I change it so that ResultSet = XML, the Progress is
" [Execute SQL Task] Error: There is an invalid number of result bindings returned for the ResultSetType: "ResultSetType_XML".
If I add ResultName = 0, and VariableName= HRGSpaces, I'm back to
"Progress: Executing query "DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HR". - 100 percent complete
Task Execute SQL Task - select the XML Output failed
Error: The wrapper was unable to set the value of the variable specified in the ExecutionValueVariable property."
Leaving the ResultSet = XML, and changing the SSIS variable as Object, the Progress is
" [Execute SQL Task] Error: There is an invalid number of result bindings returned for the ResultSetType: "ResultSetType_XML".
Changing the ResultSet back to None, but leaving the variable as Object, the SQL task will successfully execute, but the File System Task with IsSourcePathVariable = True and SourceVariable = User::HRGSpaces when executed errors out with
"[File System Task] Error: Variable "HRGSpaces" is not a string. Error: There were errors during task validation. Validation is completed. Warning: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (3) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
So, how to I resolve the Object vs String definition. Any help in getting beyond this is appreciated!
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Dec 13, 2006
Hi all,
As there is no support of check points at data flow component level, we are trying to implement this on our own. In the process of implementing we have to save values of certain user defined variables in to an xml file. To do this, we added a data flow task in the event handler OnTaskFailure. Now we want to save values of the variables in to an xml file in the data flow. Can you please suggest me how can we save values of variables in an event handler?
Cheers,
Gopi
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Apr 15, 2005
I am importing data from xls file to a db table with a dts. In the time of the dts creation I am using 'Transform Data Task Properties' GUI window to map incoming xls fields (source) to the table columns (destination).
Question: Is there any way to invoke the 'Transform Data Task Property' GUI window in dts runtime and use it to change the mapping dynamically in the run time?
Thanks, Vadim.
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Mar 24, 2007
Can the WaitForMe Task property be used for building eventing based tasks (that is, "tasks with no defined execution lifecycle"), as Haselden's IS book terms it?
The SSIS run-time would appear to never interrogate this property.
I tried setting a breakpoint in a custom task on the WaitForMe
property. The breakpoint was never hit at run-time. Design-time only. It seems that the run-time ignores this property.
The documentation states that "On completion of any task, the runtime examines tasks that are still running in
the container, and if any of these tasks have WaitForMe set to
false, those tasks will be canceled." Well, the tasks with WaitForMe set to false are in fact not cancelled (e.g. System::CancelEvent is not signalled).
The intention of the WaitForMe Task property is to allow for event based tasks to not prevent a package (or other container) from finishing if the event never happens.
Tasks like the WMI Event Watcher, Message QueueTask set to receive, and third party tasks like file watchers, or service broker queue receivers would seem to fall in this category.
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Jan 9, 2007
Hi,
In a custom task I have a property of type Hashtable. This property gets changed by a custom UI. After changing the value and closing the UI, the Hashtable is properly filled during investigation in the validate() method.
Now saving the package and inspecting the XML file of the package, there is only this entry:
<DTS:ObjectData><InnerObject><PromotionCodes Type="12" Value=""/></InnerObject></DTS:ObjectData>
So it seems, that the value is empty and there is no further data to the object. Trying to reopen the saved package, the opening fails with something like (Had to translate it my own from german):
Error loading '<PackageName>' : Error loading a task. The contact information for the task is ''. This problem occurs on an error during task loading.
There should be a out of the box possibility to save collections or do you have to implement Load/Save XML your own if you have complex datatypes as properties? As the package has the element of the property included (but empty), it seems it tries to save it.
Anyone a hint. Anybody occuring the same behavior?
Thanks T.
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Oct 2, 2006
I may be looking too hard for this but I can't find a way around it.
I have an Expression and in that expression, I want to access a property on the same object (it would be great to get the properties of other objects as well).
Example: I have a flat file connection where I defined the name of the flat file in my ConnectionString. I also have a variable that I have it linked to my dtsConfig which points to the proper folder name at run time.
How can I create an expression similar to this:
@[User::strFolder] + @[Connectionstring]
where @[User::strFolder] is my variable and points to the correct folder for the given server the package is running on and @[Conenctionstring] is my made up name to access the VALUE of the Connectionstring that I have for this flat file.
So if I have the following:
in my connectionstring property: flatfile.txt
in my strFolder derived from dtsConfig at runtime: E:etl_data
I would like my final connectionstring to look as follow:
E:etl_dataflatfile.txt
So far I know I can do it with two variables but it would be great if I could reuse the property values of the current object for my expressions or any other object.
Perhaps this value is available thru the script where I can access "any" property in my dtsx and store it into another variable and then use it. This option at least allows me to reuse code instead of hardcoding table name (connectionstring) into my variables.
Did I make this too difficult and there is a simple way to access an object's property inside the expression builder?
Thanks
Anatole
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Oct 26, 2006
SSIS data flow transformation - Lookup task - best practice concerning Cachetype
I would like to know if there's any best practice concerning the CacheType property for the the Lookup task. Default value is "Full", but if the SSIS package is working with at lot of data, i.e. +10 mill. records from the OLE DB source to be handled through a variated numbers of data flow transformation tasks, it must have an impact memory usage if the lookup table also is a large table, i.e. +8 mill. records? When should I consider turning the property value to "none"
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