Bug: Auto-changing behaviour of ComboBoxes

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Our comboboxes unexpectedly change their text property value when they are focused. How can we disable this?

Whenever the list of the combobox contains an item beginning with the value
 of the text property, the text property is set to that item as soon as the combobox is focused!

We migrated a vanilla VB6 application to CodeJock and we didn't catch 
that problem before mass-release. Now our customers want to lynch us, 
because their data gets changed unpredictably.

Steps to reproduce:

1. Add a combobox to a form

Style: xtpComboDropDown (Default)
AutoComplete: false (Default)
List items: Only one: "My Test Value" (must be added in Form_Load)

2. Add a Button (just to allow moving the focus on the form)

3. I start the application and type a single "m" into the edit field of the combobox
4. Move the focus away from the combobox.
5. Now move the focus back to the combobox
6. The text of the combobox is now changed to "My Test Value"

Is there anything we can do? Any kind of workaround would help us!

Thank you in advance!

Language: VB6
CodeJock-Versions 13 through 13.2.1

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daniel_r Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 06 October 2009 Location: Germany Status: Offline Points: 14	Post Options Post Reply Quote daniel_r Report Post Thanks(0) Quote Reply Topic: Bug: Auto-changing behaviour of ComboBoxes Posted: 11 February 2010 at 6:35am
	Our comboboxes unexpectedly change their text property value when they are focused. How can we disable this? Whenever the list of the combobox contains an item beginning with the value of the text property, the text property is set to that item as soon as the combobox is focused! We migrated a vanilla VB6 application to CodeJock and we didn't catch that problem before mass-release. Now our customers want to lynch us, because their data gets changed unpredictably. Steps to reproduce: 1. Add a combobox to a form Style: xtpComboDropDown (Default) AutoComplete: false (Default) List items: Only one: "My Test Value" (must be added in Form_Load) 2. Add a Button (just to allow moving the focus on the form) 3. I start the application and type a single "m" into the edit field of the combobox 4. Move the focus away from the combobox. 5. Now move the focus back to the combobox 6. The text of the combobox is now changed to "My Test Value" Is there anything we can do? Any kind of workaround would help us! Thank you in advance! Language: VB6 CodeJock-Versions 13 through 13.2.1

daniel_r Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 06 October 2009 Location: Germany Status: Offline Points: 14	Post Options Post Reply Quote daniel_r Report Post Thanks(0) Quote Reply Posted: 18 February 2010 at 2:26am
	We really need a solution for this one. Is there anything we can do? Can we hook any Windows message or send any CodeJock specific message to change this behaviour? Thanks.

gibra Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 31 October 2008 Location: Italy Status: Offline Points: 288	Post Options Post Reply Quote gibra Report Post Thanks(0) Quote Reply Posted: 15 March 2010 at 3:26pm
	You examine your problem and seem that in this way you should solve your problem: 1. Add in Declarations a String variable for each combobox: Dim m_ComboBox1 As String 2. Next, manage GotFocus and LostFocus event as below. Private Sub ComboBox1_GotFocus() ComboBox1.Text = m_ComboBox1 End Sub Private Sub ComboBox1_LostFocus() m_ComboBox1 = ComboBox1.Text End Sub Let me know.
	gibra CJ SuiteControl v: 13.x to 19.x Windows 10 64bit VS2019 - VB6.0 SP6 <a href="http://nuke.vbcorner.net/Home/tabid/36/language/en-US/Default.aspx" rel="nofollow">VS/VB 6.0 Installer v6.8

daniel_r Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 06 October 2009 Location: Germany Status: Offline Points: 14	Post Options Post Reply Quote daniel_r Report Post Thanks(0) Quote Reply Posted: 17 March 2010 at 3:44am
	Thank you very much for your response! This works, but it essentially makes the combobox readonly: If the user changes the text, the old value will be restored if the focus is lost. Additionally updating m_ComboBox1 during ComboBox1_Change doesn't help, because the "autochange" triggers the Change event, too, and I can't distinguish between user input and an automatic change. Daniel

daniel_r Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 06 October 2009 Location: Germany Status: Offline Points: 14	Post Options Post Reply Quote daniel_r Report Post Thanks(0) Quote Reply Posted: 31 March 2010 at 8:52am
	I'd really like to hear some statement concerning this problem from one of the CodeJock developers. Will this be fixed? Or is this considered not worth the effort?

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 31 May 2010 at 9:11am
	Hi, Thanks, its fixed for 13.4 update. Please use our issuetrack to notify about such critical bugs.
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

ijwelch Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 20 June 2006 Status: Offline Points: 262	Post Options Post Reply Quote ijwelch Report Post Thanks(0) Quote Reply Posted: 31 July 2010 at 11:19am
	12.1 lapsed customer here. oh bugger, better check all my projects.
	ExtremeSuitePro 12.1.1 WinXP SP3