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Date Picker Events

  1. #1
    Rin is offline Novice
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    Question Date Picker Events

    I have a date picker on my form and I want to update some stuff whenever the user changes the date. I've tried using the On Updated event, but that event doesn't seem to fire when a new date is picked. What am I missing?

    Thanks in advance,



    ~Rin

  2. #2
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    After update will work once you have left that control.
    Click Enter to see the effect or click on another control
    Colin (Mendip Data Systems), Website, email
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  3. #3
    Ajax is online now VIP
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    or try the change event - but if the user types a date, it will fire everytime they enter a character - but you can use the isdate function to check if it is a valid date

    if isdate(datectrl.text) then
    'update some stuff
    end if

  4. #4
    Missinglinq's Avatar
    Missinglinq is offline VIP
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    I've found that the reason many users prefer typing in a date is that they don't want to have to click on the calendar icon and then click on a date. I've gotten around this, with great success, by having the calendar automatically popping up when the date field receives Focus. The code to do this (and to move Focus to another Control, causing the AfterUpdate event to fire) is simple:

    Code:
    Private Sub DateField_GotFocus()
      DoCmd.RunCommand acCmdShowDatePicker
    End Sub
    
    Private Sub DateField_Change()
      Me.AnotherControl.SetFocus
    End Sub
    
    Private Sub DateField_AfterUpdate()
      'AfterUpdate code goes here
    End Sub


    If the date Control happens to be the first Control to receive Focus...you'll need these two bits of code, as well:
    Code:
    Private Sub Form_Load()
      Me.TimerInterval = 1
    End Sub
    
    Private Sub Form_Timer()
      Me.TimerInterval = 0
      Me.DateField.SetFocus
      DoCmd.RunCommand acCmdShowDatePicker
    End Sub


    Linq ;0)>
    The problem with making anything foolproof...is that fools are so darn ingenious!

    All posts/responses based on Access 2003/2007

  5. #5
    Rin is offline Novice
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    Thanks for the suggestions to use the Change even, but there isn't one. The only events available for the native date picker control in Access 2016 are on Update, Enter, Exit, Got Focus, and Lost focus. From experimentation, it seems that Update fires on Lost focus. While the best solution would be for Microsoft to step up with a Change event, we all know that's not going to happen or it already would have.

    Other threads on this forum suggest using a third party date picker and that really seems to be the only solution. I hate to do it because I really prefer the simple appearance of the MS date picker, but I don't see any way around it.

    Thanks for the input folks.

    ~Rin

  6. #6
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    Ajax was referring to the change event in the textbox but I would still recommend the After update event
    The MS date picker is simple but that's also its weakness.
    For example if you want to change to a date in 2010 you have to scroll back month by month almost 100 times
    That's one reason why a lot of people prefer to type in their own date

    Have a quick look at my Better Date Picker - very easy to use and its ...better IMHO http://www.mendipdatasystems.co.uk/b...ker/4594398118
    Colin (Mendip Data Systems), Website, email
    If this has helped, please click the star button and leave a comment

  7. #7
    Rin is offline Novice
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    @ridders52,

    The Change event from the unbound textbox with a date data type doesn't fire when a date is selected from the associated date picker. It only fires when a date is typed in.

    Thanks for the link to that date picker. I'll check it out. It's been a lot of years since I've used a control that wasn't native in Access so I may need some knowledge updates on how to do that.

    Thanks for the help,

    ~Rin

  8. #8
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    For that reason, you ideally want everyone to type in the date or nobody.
    By using a good date picker, the problem should be solved
    My version is clearly explained at the link I supplied and as I said very easy to use

    For info, mine is not an ActiveX control. It works in any Aceess version and in both 32-bit and 64-bit Access.
    Last edited by ridders52; 12-04-2018 at 02:40 AM.
    Colin (Mendip Data Systems), Website, email
    If this has helped, please click the star button and leave a comment

  9. #9
    Rin is offline Novice
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    @ridders52,

    I'm having trouble adding the control. Probably because I don't really know what I'm doing. I put it into a folder in the MicorsoftOffice/root/Office16/ADDINS directory. I ran the Add-in manager as and administrtor), navigated to the directory, and selected "All Files" to see the control (the .accdb extension wasn't in the list). I tried too add it and got an error saying that the add-in couldn't be installed because it's missing the USysRegInfo table.

    Clearly I'm doing something wrong.

    ~Rin

  10. #10
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    Its not an add-in
    The instructions were on the link I supplied:

    To use, copy frmDatePicker & modDatePicker to your own database

    Its main purpose is to input a date in a form textbox
    All you need for that is one line of code in your textbox click event:
    For example

    Code:
    Private Sub txtDate_Click()
       InputDateField txtDate, "Select a date to use this on your form"
    End Sub
    Colin (Mendip Data Systems), Website, email
    If this has helped, please click the star button and leave a comment

  11. #11
    Missinglinq's Avatar
    Missinglinq is offline VIP
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    Quote Originally Posted by Rin View Post
    @ridders52,

    The Change event from the unbound textbox with a date data type doesn't fire when a date is selected from the associated date picker. It only fires when a date is typed in.
    Sorry...that's simply not true! The code I gave was tested on both a Bound and Unbound Textbox formatted/defined as a DateTime Field.

    You have to be doing something incorrectly.

    Linq ;0)>
    The problem with making anything foolproof...is that fools are so darn ingenious!

    All posts/responses based on Access 2003/2007

  12. #12
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    Whilst linq is correct, using the Change event is a bad idea if anyone enters or edits the dates direct as it will fire repeatedly.
    After update will only fire once whether the date is entered using a date picker or entered direct.
    Colin (Mendip Data Systems), Website, email
    If this has helped, please click the star button and leave a comment

  13. #13
    Missinglinq's Avatar
    Missinglinq is offline VIP
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    That's true...but I've never had a problem with that, in the apps I've designed. As I said, once the DatePicker pops up automatically, relieving the user of having to use the mouse to bring it up, users, in my experience, prefer to use it over a bunch of characters.

    Colin makes a good point about entering grossly historic dates, i.e. ones far in the past...the native DatePicker is not the way to go...but for entering near current dates, it's perfect.

    As is often the case...it's a matter of picking the right tool for the job!

    Linq ;0)>
    The problem with making anything foolproof...is that fools are so darn ingenious!

    All posts/responses based on Access 2003/2007

  14. #14
    ridders52's Avatar
    ridders52 is offline Voodoo Is Practised
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    As my users often have to pick dates well in the past or future, the built-in date picker isn't up to the job...which is why I rolled my own

    I also rarely use the change event but on very rare occasions I've had to resort to code like this to ensure it fired no matter how data was modified

    Code:
    Public Sub txtMessage_AfterUpdate() 
    'This is public so it can be called externally
        txtMessage_Change
        
    End Sub
    Can't remember what the reason was in that case
    Colin (Mendip Data Systems), Website, email
    If this has helped, please click the star button and leave a comment

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