BC4J binding combo boxes

Hello all,
When I bind a combo box to a particular field, and get its values from another table, using
comboBox.setModel(JUComboBoxBinding.createLovBinding(binding, comboBox, voName, null, voName + "Iter", new String[] { attribName }, lovVOName, new String[] { lovValAttribName }, new String[] { lovDispAttribName }, null, null));
The combo box becomes editable. I don't want it to be editable, since the value must be one of the ones in the list! Is there any way to make the box uneditable? I tried setEditable(false), and it doesn't appear to work.
Thanks!

It's version 9.0.2.822.
Actually, I told a lie. The box isn't unselectable, it just doesn't display the selection when the list isn't shown.
So all the combo boxes on my screens look empty, but actually contain selections! And they update the corresponding database row appropriately.
Perhaps it is a bug in this version; I'll try upgrading.

Similar Messages

Multiline combo box

Hi All,
We have a project where we are using combo boxes in our UI. However, for some of the texts, the drop down menu becomes too long. I was wondering if it could be made multiline. I tried binding combo box to a textbox which has multiline display instead of binding it to a string control; but the combo box was not added to the textbox control. What should I be doing ? Should I modify the combobox control ? or is there an equivalent control which me help me achieve the functionality ?
Thanks,
Kanu

Kanu:
I'm not picturing what you have in mind.
Would a tree menu work? Look at the example project treemenu.cws that ships with CVI.
How often does the operator need to enter something instead of just selecting the dropdown options?
There are multiple ways you could allow the operator to still enter (rather than select) something for or from a menu. (Menu item for a custom entry, right-click on an entry, popups, etc.)
Can you post a picture of what you have in mind and explain why a standard combobox won't work?

How to Bind a Combo Box so that it retrieves and display content corresponding to the Id in a link table and populates itself with the data in the main table?

I am developing a desktop application in Wpf using MVVM and Entity Frameworks. I have the following tables:
1. Party (PartyId, Name)
2. Case (CaseId, CaseNo)
3. Petitioner (CaseId, PartyId) ............. Link Table
I am completely new to .Net and to begin with I download Microsoft's sample application and
following the pattern I have been successful in creating several tabs. The problem started only when I wanted to implement many-to-many relationship. The sample application has not covered the scenario where there can be a any-to-many relationship. However
with the help of MSDN forum I came to know about a link table and managed to solve entity framework issues pertaining to many-to-many relationship. Here is the screenshot of my application to show you what I have achieved so far.
And now the problem I want the forum to address is how to bind a combo box so that it retrieves Party.Name for the corresponding PartyId in the Link Table and also I want to populate it with Party.Name so that
users can choose one from the dropdown list to add or edit the petitioner.

Hello Barry,
Thanks a lot for responding to my query. As I am completely new to .Net and following the pattern of Microsoft's Employee Tracker sample it seems difficult to clearly understand the concept and implement it in a scenario which is different than what is in
the sample available at the link you supplied.
To get the idea of the thing here is my code behind of a view vBoxPetitioner:
<UserControl x:Class="CCIS.View.Case.vBoxPetitioner"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:v="clr-namespace:CCIS.View.Case"
xmlns:vm="clr-namespace:CCIS.ViewModel.Case"
mc:Ignorable="d"
d:DesignWidth="300"
d:DesignHeight="200">
<UserControl.Resources>
<DataTemplate DataType="{x:Type vm:vmPetitioner}">
<v:vPetitioner Margin="0,2,0,0" />
</DataTemplate>
</UserControl.Resources>
<Grid>
<HeaderedContentControl>
<HeaderedContentControl.Header>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
<TextBlock Margin="2">
<Hyperlink Command="{Binding Path=AddPetitionerCommand}">Add Petitioner</Hyperlink>
| <Hyperlink Command="{Binding Path=DeletePetitionerCommand}">Delete</Hyperlink>
</TextBlock>
</StackPanel>
</HeaderedContentControl.Header>
<ListBox BorderThickness="0" SelectedItem="{Binding Path=CurrentPetitioner, Mode=TwoWay}" ItemsSource="{Binding Path=tblParties}" />
</HeaderedContentControl>
</Grid>
</UserControl>
This part is working fine as it loads another view that is vPetioner perfectly in the manner I want it to be.
Here is the code of vmPetitioner, a ViewModel:
Imports Microsoft.VisualBasic
Imports System.Collections.ObjectModel
Imports System
Imports CCIS.Model.Party
Namespace CCIS.ViewModel.Case
''' <summary>
''' ViewModel of an individual Email
''' </summary>
Public Class vmPetitioner
Inherits vmParty
''' <summary>
''' The Email object backing this ViewModel
''' </summary>
Private petitioner As tblParty
''' <summary>
''' Initializes a new instance of the EmailViewModel class.
''' </summary>
''' <param name="detail">The underlying Email this ViewModel is to be based on</param>
Public Sub New(ByVal detail As tblParty)
If detail Is Nothing Then
Throw New ArgumentNullException("detail")
End If
Me.petitioner = detail
End Sub
''' <summary>
''' Gets the underlying Email this ViewModel is based on
''' </summary>
Public Overrides ReadOnly Property Model() As tblParty
Get
Return Me.petitioner
End Get
End Property
''' <summary>
''' Gets or sets the actual email address
''' </summary>
Public Property fldPartyId() As String
Get
Return Me.petitioner.fldPartyId
End Get
Set(ByVal value As String)
Me.petitioner.fldPartyId = value
Me.OnPropertyChanged("fldPartyId")
End Set
End Property
End Class
End Namespace
And below is the ViewMode vmParty which vmPetitioner Inherits:
Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
Imports CCIS.Model.Case
Imports CCIS.Model.Party
Imports CCIS.ViewModel.Helpers
Namespace CCIS.ViewModel.Case
''' <summary>
''' Common functionality for ViewModels of an individual ContactDetail
''' </summary>
Public MustInherit Class vmParty
Inherits ViewModelBase
''' <summary>
''' Gets the underlying ContactDetail this ViewModel is based on
''' </summary>
Public MustOverride ReadOnly Property Model() As tblParty
'''' <summary>
'''' Gets the underlying ContactDetail this ViewModel is based on
'''' </summary>
'Public MustOverride ReadOnly Property Model() As tblAdvocate
''' <summary>
''' Gets or sets the name of this department
''' </summary>
Public Property fldName() As String
Get
Return Me.Model.fldName
End Get
Set(ByVal value As String)
Me.Model.fldName = value
Me.OnPropertyChanged("fldName")
End Set
End Property
''' <summary>
''' Constructs a view model to represent the supplied ContactDetail
''' </summary>
''' <param name="detail">The detail to build a ViewModel for</param>
''' <returns>The constructed ViewModel, null if one can't be built</returns>
Public Shared Function BuildViewModel(ByVal detail As tblParty) As vmParty
If detail Is Nothing Then
Throw New ArgumentNullException("detail")
End If
Dim e As tblParty = TryCast(detail, tblParty)
If e IsNot Nothing Then
Return New vmPetitioner(e)
End If
Return Nothing
End Function
End Class
End Namespace
And final the code behind of the view vPetitioner:
<UserControl x:Class="CCIS.View.Case.vPetitioner"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:vm="clr-namespace:CCIS.ViewModel.Case"
mc:Ignorable="d"
Width="300">
<UserControl.Resources>
<ResourceDictionary Source=".\CompactFormStyles.xaml" />
</UserControl.Resources>
<Grid>
<Border Style="{StaticResource DetailBorder}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="Petitioner:" />
<ComboBox Grid.Column="1" Width="240" SelectedValuePath="." SelectedItem="{Binding Path=tblParty}" ItemsSource="{Binding Path=PetitionerLookup}" DisplayMemberPath="fldName" />
</Grid>
</Border>
</Grid>
</UserControl>
The problem, presumably, seems to be is that the binding path "PetitionerLookup" of the ItemSource of the Combo box in the view vPetitioner exists in a different ViewModel vmCase which serves as an ObservableCollection for MainViewModel. Therefore,
what I need to Know is how to route the binding path if it exists in a different ViewModel?
Sir, I look forward to your early reply bringing a workable solution to the problem I face.
Warm Regards,
Arun

Combo box with bind variable from popup

Hi.
I had two comboboxes on a form, one having a bind variable. It works great, with the first one as bind field.
But i want to have the first LOV to be a POPUP. So, the second LOV (combo box) needs to be refreshed when a user has picked a value from the popup list. When i do that, the second LOV is not refresehed...
Is there a way to do this?
(3.0.9.8.3.A)

Hi,
This was a bug and is fixed in 30984.
Thanks,
Sharmila

Enumeration binding for combo box - missing feature

Hi,
In our application, combo boxes are usually employed for similar purpose as radio button groups: provide the end-user with an exclusive, static list of choices.
Unfortunately, JUComboBoxBinding.createEnumerationBinding method does not seem to follow the same paradigm as JUButtonGroupBinding.createEnumerationBinding.
In fact, for JUButtonGroupBinding, one parameter is "AbstractButton[] buttons", which is used for display purposes (end-user descriptions of the choices), and another is "Object[] valueList", which is the list of values for the corresponding attribute (usually, the valid values in the database for the column).
Meanwhile, JUComboBoxBinding is only receiving one array parameter, "Object[] values", which is used both for display purposes and for database values... This approach is very restrictive, as long as we expect to display in the combo box a descriptive text for the coded value in the database (and localizable, as well!).
Is this a known bug, or am I the first one to have noticed it? Is there any schedule for making this feature available?
Thanks,
Adrian

I'm not sure where my last reply went, so another try.
Unfortunately, I have the same feeling as usual, that my posted messages are not carefully read...
The main issue was the comparison between JUComboBoxBinding and JUButtonGroupBinding, and my question was about the possible future availability of a feature. Nothing about this in the answer...
Could I have an aswer to my original message, please?JUButtonGroupBinding is a custom control provided by JClient and has an api to let a user 'provide' custom Button objects instead of the default 'RadioButton's that would get created if none is passed in. The fact that you could use that to perform LOV kind of indirection of displaying a value other than what's set is 'a side-effect' of the original intention.
FYI, we already implemented an extension to JUComboBoxBinding which is just doing what I was asking for. It is not complex at all:( I was only thinking that it might be useful also in standard...The 'standard' way of getting this behavior you're asking for is to create a programmatic VO as suggested above, with both display/update attribute values and bind it to the ComboBox as an LOV Binding. And yes you can certainly create custom controls extending Swing and use the existing bindings or 'extend' them as per an application need.
Regards,
Adrian

Binding Data to a Combo Box

Using ODP.Net,
Does anybody have sample code for binding a column in a table to a combo box in either a web form or in a window application in .NET 2003
Thanks,
Declan

There's nothing special about doing this with ODP.NET.
Any example of ADO.NET databinding should work with ODP.NET.
eg
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnvssamp/html/vbcs_RetreiveandProcessDatawithaSQLDataReader.asp
or
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=dotnet+databind+combobox
David

A data-binding issue with a combo box.

Hi,
Iu2019m having a data-binding issue with a combo box. The field it is bound to is an integer. The valid values in the combo box are 1, 2, and 3. If I add a record when it is set to 1 or 2, the value gets stored correctly. If I add a record when it is set to 3, it is stored as 1. However, I can bring up the record just added on the form, change it to 3, and click u201CUpdateu201D and it is saved correctly as 3. If I change it so that the valid values are 4, 5, and 6, it saves a 1 regardless of what is selected in the combo box. It looks like the combo box is correctly bound for updates but not for adds. The table is a master type UDO. Any ideas? Iu2019m somewhat committed to the field being an integer. I'm using 2007A PL47.
Thanks,
Mike
Edited by: Mike Angelastro on Jul 1, 2009 2:43 PM

I tried a few things on my own. The result is that I decided that it was not a good idea to use a combo box bound to an integer (numeric) field. I donu2019t think the SDK can handle it. The reason it was an integer field in the first place is that before I changed it to a combo box it was a group of two option buttons. Option buttons use an integer (numeric) field. This worked just fine until I added a third option; the SDK didnu2019t handle the third option correctly when adding records. I thought that using a combo box instead would fix that. I was wrong; the problem remained. So I decided to use a character (alphanumeric) field instead. This works just fine.
So here is my advice: Never use option buttons if they need to be bound to the database; a combo box will actually work better when bound to the database. But use a character (alphanumeric) field.
Edited by: Mike Angelastro on Jul 5, 2009 9:15 PM

Combo box in matrix column does not bind

Dear Sirs,
I have a master data UDO with three child tables, and I generated an xml form file using the B1DE form ganerator for this UDO.
After that I used screen painter to set some columns of the matrix bindend to the child tables as combo box.
In the load data event of the form I populate each combo box cell with the valid values I want.
Now, when I add (or update) data , the combo box let me choose the valid values correctly (and I can see the choosen value in the cell) , but then data are not saved in the DB, while the data entered in edit text columns are correclty saved.
Anyone have an idea of the problem?
Thank you for the help
Massimo

Massimo,
Have a look at the SDK Sample for Matrix and DataSource ...
...\Program Files\SAP\SAP Business One SDK\Samples\COM UI\VB.NET\06.MatrixAndDataSources
This may help.
Eddy

..:: on getting 2 combo boxes to bind to single components? -- (based on xcTrips XML tut)

<<<<<<<PLEASE SKIP TO THE
REPLY>>>>>>>>
Ive built an app using the xcTrips tutorial from the flash
xml resource page. It works great.
(Links if needed-->)
http://download.macromedia.com/pub/developer/xml_connector.zip
http://www.adobe.com/devnet/flash/articles/xmlconnector.html
Now I want to add another combo that uses a second array that
I added to the original xml file.
what I have done:
1) I have added a new array to the xml file (same schema,
different syntax)
<videos>
<video>
<description></description>
<swf></swf>
</video>
</videos>
2) I imported the new array to the schema
3) I bound the new combo box to the new videos array and set
its formatter options
4) I then bound the combo box to the textArea and loader
compenents that are ALSO bound to the other combo box (I think this
is the source of the problem)
5) I did NOT set the default value of the selectedIndex to 0,
b/c I do not want this box to load at runtime. (where is the other
cb IS set to 0)
Result---
the new combo displays the label names from the new array,
but does not update the description or the loader
So--
how can I get I get around this?
thanks!!

This is an excellent tutorial:
http://www.adobe.com/devnet/flash/articles/flash_xmlphp.html

Dynamically change the contents of one combo box based on the other

Hi Forum,
I have a question which might have a possibly simple answer. Well anyway help me out since i could not find the simple answer.
I am building an application using Swing and binding with BC4J using JClient. My GUI has combo boxes, grids, editboxes. My requirement is that i should be able to dynamically change the contents of one combo box based on the selected item in trhe previous combo box. For example, when i choose a country in the "country combo box", the "states combo box" should show the list of the states of the selected country.
Now how do i do this using binding. If not, how do i write custom querirs in BC4J layer and return a resultset to the remote application so theat i can populate the dependent combo boxes.
I will appreciate if anyone can help me out in this regard.
Thank You
Sumit

there could be quite a few number of ways of solving this problem.
One way is through event handlers.
taking your example as a model when user selects a country you could fire an action with a flag set to ture. A method will return the states from the DB or your temporary files or what ever and then the true flag will be used in the states combo box rendering.
other way: javascript
this might be a bit clumsy as you will need the states information in a property file and you can get the info as the user selects a country.
regards,
raj

Plotting a combination chart with a combo box for selection

Hi:
I am a newbie using xcelcius and I need help on the following:-
I need to create a combination chart that plots 3 years data by month, and I need a combo box selection at the top that allows me to select user display for each difference region. I manage to create one that plots only 2008 data with a combo-box selection, but I have no idea how to do it for a combi chart in xcelcius. Any advise?

Hi Ning,
I assume your data are like this:
Region             Year     Jan     Feb     Mar
APJ             2006     $234.45     $310.34     $321.54
APJ             2007     $314.35     $319.12     $256.89
APJ             2008     $425.54     $354.34     $285.73
North Asia     2006     $534.64     $642.35     $484.64
North Asia     2007     $631.74     $654.13     $754.34
North Asia     2008     $754.31     $423.65     $634.32
South East Asia     2006     $536.42     $576.35     $525.42
South East Asia     2007     $426.78     $876.43     $643.75
South East Asia     2008     $634.87     $425.77     $732.43
If this, you can set the insertion type of combo box is "Filtered Rows", see steps:
1) For Combo Box, bind General > Labels to the Region column.
2) Set General > Data Insertion > Insertion Type is "Filtered Rows" (you can refer to following flash to see how "Filtered Rows" works).
3) Set its Source Data are Year, Jan, Feb, ... columns and Destination to blank cells.
4) Bind Chart to the destination data.
Now when you select APJ from Combo Box, it will insert all the rows of APJ data to the desitination cells which will be displayed in Chart.
Hope this can help!

Need help with xml and combo boxes

Basically what im doing is a ui for a electronic book.
The book is broken into 3 parts and each part has its own set
of chapters.
My xml schema is pasted below.
And what i would like is to have two comboBoxes .
The first one would list the names of the parts available,
ie.. Part I, Part II, Part III.
the Second one would list the chapters avalable under that
part. For example, If Part i, is sected then the secodn combo box
would list chapter 1-5, while if the second part is selected, the
second combo box would list chapters 6-10.
Im using flash 8 pro, and the xmlconnector and comboboxes.
Maybe there is an easier way. PLEASE HALLP! This is driving me
nuts.
XML Schema:

Hi
I have just done this for another guy in this forum, I can
send you an example using UI Components - 3 Comboboxes each shows
the sub-options of its parent, one more than what you want. The
secret is in the construct of the XML file and how this creates the
correct Schema for binding.
Post me an email address and I can send you the files.

Combo box select default value.

Hi,
I am using Combo box to display the status of the document.
my code is
oForm = SBO_Application.Forms.Item("I8_BGU_")
                        Dim oCombo1 As SAPbouiCOM.ComboBox
                        oForm.DataSources.UserDataSources.Add("ComboSrc5", SAPbouiCOM.BoDataType.dt_SHORT_TEXT, 1)
                        'oItem = oForm.Items.Item("21") ''for accessing the combo box item
                        oCombo1 = oForm.Items.Item("21").Specific
                        '' to bind the combo box item to defined user data source
                        oCombo1.DataBind.SetBound(True, "", "ComboSrc5")
                        ''giving some static values to combobox
                        oCombo1.ValidValues.Add("Open", "Open")
                        oCombo1.ValidValues.Add("Closed", "Closed")
                        oCombo1.ValidValues.Add("Extended", "Extended")
                        ' oCombo.Select("Open")
                        oCombo1.Select("Open", SAPbouiCOM.BoSearchKey.psk_ByValue)
                        oForm.Items.Item("21").Specific.DataBInd.SetBound(True, "@I8_BGU", "U_STATUS")
                        oCombo1.Select("Open")
In this code when it reaches last lineof line it is throwing error.
Object refertence not set to any instance..
some time it is throwing
error,,
" Unble to cast COM object sbouiCom.itemeventClas to Interface Type IItemevent. This application Cal is failed.
The same logic working form for another form..
Is there any modification needed.
Please.. get to me..
mahi.

Hi Mahendra,
In case of selecting a default value in a combo, it has 2 parameters to be passed. Its as below.
objCombo.Select(0, SAPbouiCOM.BoSearchKey.psk_Index)
Replace this with proper value (1st parameter). It will work.
I find that you have already used that line. So you can remove your last line.
Best Regards,
satish. B.
Edited by: satish b on Jan 12, 2010 8:35 AM

Auto-Suggest feature in Combo-box LOV is not displaying non-unique values

Hi,
I have an auto-suggest feature implementation on a combo-box lov that displays the name and email-id of a list of people. There are non-unique names in the back-end, for example :
Abraham Mason [email protected]
Abraham Mason [email protected]
But when I use the auto-suggest feature and type in, say 'Ab', instead of showing both the Abraham Masons the auto-suggest displays only one of the values.
As in the example above the email-ids of the two Abraham Masons are different and unique.
If I use the conventional drop down menu of the combo-box then both the values are visible.
Is the auto-suggest feature implemented in a manner so as to display only unique values?
This is the implementation of the auto-suggest feature that I have done -
<af:column headerText="#{bindings.RqmtAtLevel1.hints.Owner.label}"
id="c23" sortable="true" filterable="true"
sortProperty="Owner"
filterFeatures="caseInsensitive">
<af:inputComboboxListOfValues id="ownerId"
popupTitle="#{ResourcesGenBundle['Header.SearchandSelect.Searchandselectanobjectusingad']}: #{bindings.RqmtAtLevel1.hints.Owner.label}"
value="#{row.bindings.Owner.inputValue}"
model="#{row.bindings.Owner.listOfValuesModel}"
required="#{bindings.RqmtAtLevel1.hints.Owner.mandatory}"
columns="#{bindings.RqmtAtLevel1.hints.Owner.displayWidth}"
shortDesc="#{bindings.RqmtAtLevel1.hints.Owner.tooltip}"
autoSubmit="true">
<f:validator binding="#{row.bindings.Owner.validator}"/>
<af:autoSuggestBehavior suggestedItems="#{row.bindings.Owner.suggestedItems}"/>
</af:inputComboboxListOfValues>
</af:column>
Thanks,
Anirudh Acharya

Hi,
don't find a bug entry about this, so if this indeed is a defect then this has not been filed. Do you have a test case ? If you have please zip it up and send it in a mail to me. My mail address is in my OTN profile (just click on my name until you get to the profile). Pleas rename the "zip" extension to "unzip" and mention the JDeveloper release you work with. The test case should work against the Oracle HR schema.
If you need to track the issue, I suggest to file a service request with customer support yourself
Frank

Source Data option won't dispaly on combo box proprieties.

I am trying to use combo box to dispaly a serie of data but when activated, the source data for the combo box is not available. Any idea what might be the problem and how can I resolve it?
Thanks.

The source data is not available for certain insert options as they do not need source data.
These options are position, label and status list.
If you switch to any of the other insert types, you can then bind your source data.

BC4J binding combo boxes

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