Limiting the Text field to certain number of characters in Notes Client Dynamically

Hi Experts

Is there any possibility to limit the Text field to a number of characters in Notes Client ?

That is If I decide to have the maximum size of the Text field  to be 10 characters then the user should not be allowed to type 11 th character.

 I dont want to pop up any error but I just want to restrict him from typing further. I know an input validation can be done on the field.

But it can check only when the document is refreshed or saved. But what I want to do is limit the text field size.

Hope you people help me.

Thanks in Advance
Vinothini Kasiviswanathan
VinothiniKasiviswanathanAsked:
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madheeswarCommented:
Try Input Translation
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madheeswarCommented:
And here is the code where I found in notes.net

You can do it like this (place these subs on the Form).
I think this is quite self-explanatory. Change the const "fieldname" statement to the field name you want to control, and the "fieldmaxlen" to the max. length you want to allow to type in:

(Declarations):
Dim elapsedTimer As NotesTimer

Sub Postopen(Source As Notesuidocument)
Dim session As New NotesSession
Set elapsedTimer = session.CreateTimer()
elapsedTimer.Interval = 1
On Event Alarm From elapsedTimer Call elapsedTimerHandler
End Sub

Sub elapsedTimerHandler(Source As NotesTimer)
Const fieldname="subject"
Const fieldmaxlen=30
Dim workspace As New notesuiworkspace
Dim uidoc As notesuidocument
Set uidoc=workspace.currentdocument
s=uidoc.fieldgettext(fieldname)
uidoc.fieldsettext fieldname,Left(s,fieldmaxlen)
End Sub
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madheeswarCommented:
Translation:
@Left(fieldname;4)
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madheeswarCommented:
If you are telling that when the types 11th character, then notes should not accept it, then tis not possible. In Notes client we don't have the event.

We have events on web and we can use Java Script for this.

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madheeswarCommented:
For Translation:
@If(@length(sendmails_k)>4;@Prompt([OK];"Ur Prompt";"Prompt msg")&@Return(@Left(sendmails_k;4));sendmails_k)
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madheeswarCommented:
Else use Script in Exiting event.
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qwaleteeCommented:
Notes doesn't support onChange or direct size limits, but you can use an external control, such as the ones that come with MS office, and script it in (moving teh value into a hidden field).
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David777Commented:
input translation seems not be able to change value realtime, it only proceed on save or refresh. But I remember in notes version 6, it supports onChange event in notes client. I check it....

yes, you can put lotus script/java script under onChange event in notes client as well as web
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David777Commented:
I don't remember notes support direct field size limits.
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bhartungCommented:
You'll have to forgive my inability to recall specifics, but I remember back in Notes 4.5 (circa 1997) we were able to accomplish this if the field was defined in a layout region (layout section?  how the memory fades...)  If that was the case, it was possible to get the window handle for that control and use Win32 API calls to set the window properties (it was probably a SendMessage call) to cause the text control to behave as you wish, where the cursor simply stops dead at the nth character.  Darned if I can remember the specifics, but at least you can take away from this rambling the fact that under certain conditions it has been done in the past.
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qwaleteeCommented:
bhartung,
Cool tip.  Too bad the thread rotted.
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bhartungCommented:
The horse is dead, but let's beat it a little more...

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Const EM_LIMITTEXT = &HC5

Given hwnd, the window handle for the control inside the layout region, the following example would set the upper bound on enterable/pastable text to 30:

SendMessage hwnd, EM_LIMITTEXT, 30&, 0

I recall that we ran this code any time the control got focus.

Hope this helps anyone poking through the archives at least...
-B
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