I'm using REST API as a datasource and not sure how to manually set a value in the Dropdown widget
The widget datasource is set to Client options are set to #datasource.items. The "display field" is name.
I'm running a script after the widget/data is loaded, I'm able to get all the options as an array and find the one that needs to be selected, but can't set the value to the widget.
What I tried is widget.values = widget.options[<index>] but it seems to always select the first option, no matter what the index is.
Try selecting a item in the datasource:
widget.datasource.selectIndex(/*INDEX HERE*/);
Related
I'm trying to make an array from a set of selectable cells in MS access.
Here's a section of my access DB:
I want the user to be able to select the cells with these numbers, dynamically (while code is running) and an array is created by selecting different cells. How can this be done in labview?
Thanks,
Use the correct code to work with the database (NI's DB toolkit, LabSQL, call the ADO.NET code directly, etc.) and get the data you want from the DB.
Place a listbox or multicolumn listbox on the front panel, change its selection mode to have 0 or more elements, so its data type becomes an array.
Use the Item Names property for the listbox to feed the data from the DB into the listbox.
The user will now need to select multiple items. This can be done by holding Ctrl, or you can call a Windows API function to press and release Ctrl on mouse enter/leave events, or you can use the Mouse Down event to figure out which row the user clicked on and use that to modify the value of the listbox (which is an array of the indices of the selected rows).
Once the user is done, you can read the value of the listbox (from its terminal) to get the indices, and use that to index the data from the Item Names property or from the original data you got from the DB.
What I'm currently doing is that on the Property Editor of my dropdown widget, on the Event Section using the onValueEdit function, I'm trying to create a custom action script which will give a value to my textbox (using widget.root.descendants.NameOfMyTextbox.value) depending on the selected value of my dropdown.
The values of my dropdown are the IDs stored in my MySql database table Process, for example: ID = 1, name = Assembly, manager = George. For the textbox, I would like to get another table field value depending on the selected value of my dropdown through a select statement (like getting the manager value). What kind of app maker queries or functions should be useful in this case?
If your dropdown option binding is #datasources.Process.items then your onValueEdit event simply needs to be:
widget.root.descendants.NameOfMyTextbox.value = newValue.manager;
This would be the only way to set this up however, because this way the options are pointing to your entire record in the Process table and upon selection you can get any other field from that record using newValue.YourField.
I am using Taleo Connect Client to export data from Taleo. I encountered two questions:
How can I add blank columns to an output CSV file?
For example, try to add ColumnBlank1 between Column_FirstName and Column_LastName.
Column_FirstName|ColumnBlank1|Column_LastName
John||Lee
Adam||Jackson
How can I set default value like "N" for one field?
DBaluke Huang's answer was correct, but he left out some details. Adding the full solution for others who might need this too.
To export a blank or fixed string value in a column using TCC (Taleo Connect client) do the following:
Open your Export
Click the projections tab
Click the add button
Click Projection Function
Choose the Replace Function
Click ok
In the First Parameter Section: In the Value box, add any string field
from your list on the entity tab. The Data Type should be Field.
In the Second Parameter Section, In the Value box, add the same field
from Parameter 1 value box. The Data Type should be Field.
In the Third Parameter section, In the value box, enter no value for
blank or enter the fixed string you want in all records.
Then change the data type to string in this section.
For those unfamiliar with the replace function you are looking for the string Parameter1.Value in Parameter2.value and then replacing all instances where the string is found with parameter3.value
You can export a blank field with <quer:string/>.
<quer:projection alias="Blank" xmlns:quer="http://www.taleo.com/ws/integration/query">
<quer:string/>
</quer:projection>
Steps
Open your export in Taleo Connect Client.
Open the General tab and set the Export mode to "CSV-report".
Open the Projections tab.
Click Add.
Select Add a complex projection and click OK.
Under Complex projection, enter the following:
<quer:projection alias="Blank" xmlns:quer="http://www.taleo.com/ws/integration/query">
<quer:string/>
</quer:projection>
Save your changes.
Example:
<quer:query productCode="RC1704" model="http://www.taleo.com/ws/tee800/2009/01" projectedClass="Candidate" locale="en" mode="CSV" csvheader="true" csvdelimiter="|" largegraph="true" preventDuplicates="false" xmlns:quer="http://www.taleo.com/ws/integration/query">
<quer:subQueries/>
<quer:projections>
<quer:projection>
<quer:field path="FirstName"/>
</quer:projection>
<quer:projection alias="Blank">
<quer:string/>
</quer:projection>
<quer:projection>
<quer:field path="LastName"/>
</quer:projection>
</quer:projections>
<quer:projectionFilterings/>
<quer:filterings/>
<quer:sortings/>
<quer:sortingFilterings/>
<quer:groupings/>
<quer:joinings/>
</quer:query>
Results:
FirstName|Blank|LastName
John||Lee
Adam||Jackson
Jane||Doe
Notes:
If you get a SAX parsing error when running the export, make sure your Export mode is set to "CSV-report". (Appears as mode="CSV" in source)
When adding a complex projection in TCC, you must include xmlns:quer="http://www.taleo.com/ws/integration/query", or else TCC will call your source "invalid". However, it is not required when editing your export's source directly outside of TCC.
I resolved the issue by:
Add a function projection in Projections. Set your Alias. Set First parameter value as whatever field that available. Set the second parameter's value as same as the first parameter. Change Third parameter's value as "blank" and set Data type as String.
Same step as the first question, and set Change Third parameter's value as "N".
I have received data from json web service with RESTRequest component
but I do not know how I should display the returned data in a grid?
How can I use RESTResponseDataSetAdapter to improve this?
Try this - it took me about 15 minutes to get working
Open the RESTDemos in your Delphi install's Samples\Object Pascal\Database\RESTDemo
Drop a TStringGrid on the RHS of the the Delphi-Praxis tab (I chose this one because
the URI on the Fetch to DataSet produces a 404 error).
If necessary, make the non-visual controls on the form visible.
Dbl-click BindingList and use the QuickBindings to add a LinkGridToDataSource. Set its
DataSource to ClientDataSet and its GridControl to StringGrid1. Thus will cause DBSourceDB1 to be created'.
Set the Response property of RestReponseDataSetAdaptor to `RESTResponse'.
Compile, run and click the fetch list of forums button. You should see the StringGrid populates
from the contents of memo_ResponseData
That should show you that LiveBindings can work with a RESTReponse to populate a grid. The RESTDemos demo has a lot more things in it, but if this is your first experience of LiveBindings, you might want to backtrack and try setting up a simple test project which populates a TStringGrid and a few TEdits from a dataset of your own.
I used a temporary array to populate a ListCollectionView. Later, I have a screen that displays a DataGrid using the ListCollectionView as a dataProvider. The user can delete a row in the DataGrid by selecting the row then clicking a Delete button.
How can I access the original source that ListCollectionView uses, and delete the item from there?
After I do that, will the item also be deleted from the ListCollectionView automagically, and no longer be shown in the DataGrid (or does something need to be refreshed)?
UPDATE 1
Does the following sound like I'm on the right track? (I want to remove it from the source (is that the ".list"?) of the ListCollectionView, not just from ListCollectionView.)
[Bindable] private var _myLCV:ListCollectionView=new ListCollectionView(new ArrayList());
...
var obj:Object = _myLCV.getItemAt(myGrid.grid.selectedIndex); // get item user selected
_myLCV.list.removeItemAt( _myLCV.list.getItemIndex(obj) ); // delete item from source
UPDATE 2
I'm not sure why (I'm using SDK 4.5.1A), but I seem to need to add the following line of code to the above code in UPDATE 1, for the DataGrid to reliably update and show the deleted row:
_myLCV.refresh();
My impulse is to recommend deleting the item from the ListCollectionView using removeItemAt.
If you truly want to access the source instead of dealing with the collection, then it depends what type of ListCollectionView you're using.
If you're using an ArrayCollection you can access the source using the source property.
IF you're using an XMLListCollection, you can access the source using the source property.
There isn't an inherent source property in the ListCollectionView, but the List property may suffice.
In any case, removing an item from the ListCollectionView or the ListCollectionView's source should automatically update the DataGrid. IF not, you can call the refresh() method on the collection.
Spark DataGrid, like other list base controls such as List or even DataGroup, would observe change events from its dataProvider. The change events may include item removal, update, sort and insertion. This provides the convenience of updating the control by just updating its underlying data.
That said, if your intent is to "refresh" the datagrid to stay up to date with the LIstCollectionView, by modifying the array and then refresh would rather be unnecessary.