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Limit the number of Characters in an Alphanumeric field based on the value chosen in another field?

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Posted on by TJCappy

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Example

I have a field that for line of business that has 3 choices (dropdown) Choice 1, Choice 2 & Choice 3.

I have another field that is Client number (Alphanumeric field) that I would like to limit as follows

if Line of business is,

choice 1 then I can enter a client number with a Maximum of 8 characters

choice 2 then I can enter a client number with a Maximum of 5 characters

choice 3 then I can enter a client number with a Maximum of 10 characters

I would be grateful if anyone has a solution as I have not been able to find a way of doing this.

Thanks

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jorge.daniel 1,430 Super User 2024 Season 1 on at

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Hi,

Is it a TextInput? If so, you can leverage the MaxLength property.

Use your choices to set a variable, for instance varLenght and then set the MaxLenght to varLenght.

Regards
EddieE 4,650 Moderator on at

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@TJCappy
@jcfDaniel is on the right track, use the MaxLength property of a TextInput control.

For example:
Dropdown named ddChoices has this code
// Items ["Choice 1", "Choice 2", "Choice 3"] // OnChange Reset(ChoiceInput)

TextInput control named ChoiceInput has this code
// Default "" // MaxLength Switch( ddChoices.Selected.Value, "Choice 1", 8 , "Choice 2", 5 , "Choice 3", 10 )

Add a label underneath the TextInput with this code
// Text property Switch( ddChoices.Selected.Value, "Choice 1", 8 - Len(ChoiceInput.Text) & " charcaters left.", "Choice 2", 5 - Len(ChoiceInput.Text) & " charcaters left.", "Choice 3", 10 - Len(ChoiceInput.Text) & " charcaters left." )

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