Datetime Picker - empty date ?
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Forum Name: Suite Pro
Forum Description: Topics Related to Codejock Suite Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=18820
Printed Date: 30 January 2025 at 11:45pm
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Topic: Datetime Picker - empty date ?
Posted By: stuc
Subject: Datetime Picker - empty date ?
Date Posted: 12 August 2011 at 9:16am
I'd like to use the datetimepicker as a data entry field but the users must be able to leave the date empty?
Can this be done ?
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Replies:
Posted By: Xander75
Date Posted: 13 August 2011 at 2:19am
Yes it can, use the Custom setting that way you can then set the date field as blank. I am not in the office so can't post a code snippet, however if nobody else does I will post it on Monday morning.
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Product: Xtreme SuitePro (ActiveX) v15.3.1
Platform: Windows 7 64-bit (SP1) Professional Edition
Languages: C#.Net using Visual Studio 2012 & Visual Basic 6.0 (SP6)
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Posted By: Xander75
Date Posted: 13 August 2011 at 2:27am
Hi,
I found a piece of code I had posted a while back in the Controls forum on this.
Private Sub Form_Load()
With dtpDateOfRequest
.Value = Format$(Date, "dd/mm/yyyy")
.Format = xtpPickerCustom
.CustomFormat = " "
End With
End Sub
Private Sub dtpDateOfRequest_CloseUp()
dtpDateOfRequest.Format = xtpPickerShortDate
End Sub
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Product: Xtreme SuitePro (ActiveX) v15.3.1
Platform: Windows 7 64-bit (SP1) Professional Edition
Languages: C#.Net using Visual Studio 2012 & Visual Basic 6.0 (SP6)
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Posted By: stuc
Date Posted: 15 August 2011 at 4:07am
Thanks fo rthe reply. This works ok for when the field is first on the screen but I cant trap the delete key for when the user wants to delete the date.
I dont really want to have to put a "delete" button on screen to clear the field.
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Posted By: Xander75
Date Posted: 15 August 2011 at 4:21am
Hi stuc,
Yeah I know about the lack of the keydown, keypress & keyup on the DateTimePicker. I rarely use it due to the way it skins (you can't see the day text clearly in some instances). However as a workaround why don't you try this:
Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer
Private Const VK_DELETE = &H2E
Private Sub Form_Load()
With DateTimePicker
.Value = Format$(Date, "dd/mm/yyyy")
.Format = xtpPickerCustom
.CustomFormat = " "
End With
End Sub
Private Sub DateTimePicker_CloseUp()
DateTimePicker.Format = xtpPickerShortDate
End Sub
Private Sub Timer_Timer()
If CBool(GetAsyncKeyState(VK_DELETE)) Then
With DateTimePicker
.Value = Format$(Date, "dd/mm/yyyy")
.Format = xtpPickerCustom
.CustomFormat = " "
End With
End If
End Sub
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Set the timer to be 100 milliseconds, it's crude but works well.
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Product: Xtreme SuitePro (ActiveX) v15.3.1
Platform: Windows 7 64-bit (SP1) Professional Edition
Languages: C#.Net using Visual Studio 2012 & Visual Basic 6.0 (SP6)
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Posted By: stuc
Date Posted: 15 August 2011 at 4:32am
Thanks, that works but im using it in a form that has several instances of it plus a host of other controls.
I'll fallback to my usual date picker I think.
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Posted By: Xander75
Date Posted: 15 August 2011 at 5:21am
Yeah I can understand why you will be best falling back to your usual date picker.
Personally I use the DTPicker from the "Microsoft Windows Common Controls-2 6.0 (SP6)" for the reasons I said above, which can be seen in my other post: http://forum.codejock.com/forum_posts.asp?TID=17827 - http://forum.codejock.com/forum_posts.asp?TID=17827
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Product: Xtreme SuitePro (ActiveX) v15.3.1
Platform: Windows 7 64-bit (SP1) Professional Edition
Languages: C#.Net using Visual Studio 2012 & Visual Basic 6.0 (SP6)
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