# Set value of one text field from another

**URL:** <https://www.ruby-forum.com/t/set-value-of-one-text-field-from-another/128842>\
**Category:** FXRuby\
**Created:** [February 12, 2008, 2:13am UTC](https://www.ruby-forum.com/t/set-value-of-one-text-field-from-another/128842 "2008-02-12T02:13:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![woodzer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/f08c70/32.png) [@woodzer](https://www.ruby-forum.com/u/woodzer)\
**Post date:** [February 12, 2008, 2:13am UTC](https://www.ruby-forum.com/t/set-value-of-one-text-field-from-another/128842/1 "2008-02-12T02:13:23Z")

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I have 2 FXTextFields with data targets for the string values in each. I  
would like to set the value of the second field to the value of the  
first 10 characters in the first field if it is empty. Can anyone  
suggest a way I might achieve this. I would also like to limit the  
second field to a max of 10 characters and ensure that they are all in  
uppercase. Any help or pointers would be appreciated.

In case it helps, here is a snippet of the code I currently have:

@desc = FXDataTarget.new("")  
@sname = FXDataTarget.new("")

FXLabel.new(matrix, “&Description”, nil,  
LAYOUT\_CENTER\_Y|LAYOUT\_CENTER\_X|JUSTIFY\_RIGHT|LAYOUT\_FILL\_ROW)  
txtDesc = FXTextField.new(matrix, 50, @desc, FXDataTarget::ID\_VALUE)

FXLabel.new(matrix, “&Short Name”, nil,  
LAYOUT\_CENTER\_Y|LAYOUT\_CENTER\_X|JUSTIFY\_RIGHT|LAYOUT\_FILL\_ROW)  
txtSname = FXTextField.new(matrix, 10, @sname, FXDataTarget::ID\_VALUE)

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<div class="post-metadata">

**Author:** ![woodzer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/f08c70/32.png) [@woodzer](https://www.ruby-forum.com/u/woodzer)\
**Post date:** [June 4, 2009, 8:58am UTC](https://www.ruby-forum.com/t/set-value-of-one-text-field-from-another/128842/2 "2009-06-04T08:58:17Z")

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Very interested too, not only two FXTextFields objects, for more.

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<div class="post-metadata">

**Author:** ![woodzer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/f08c70/32.png) [@woodzer](https://www.ruby-forum.com/u/woodzer)\
**Post date:** [September 2, 2010, 10:59am UTC](https://www.ruby-forum.com/t/set-value-of-one-text-field-from-another/128842/3 "2010-09-02T10:59:12Z")

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Hi  
Thanks for sharing with such great information actually I am little bit  
week in programming language that’s why difficult for me to completely  
understand your forum but your overall forum is nice.  
thanks  
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