Preventing the user from copying and pasting from one text field to another.

RE: Preventing the user from copying and pasting from one text field to another.

Bibhuti Mohapatra — Wed, 28 Aug 2019 13:52:54 GMT

Hello,

You can perform restriction for paste with the help of below implementation.

Solution is

- Take a text field.

-Keep number of chars user can enter.

-refresh onkeypress

-check the length of the entered data into text field.

-if the length is more then the limit then that must be entered using paste.

-highlight using validation.

load(
local!maxCharInput: 2,
local!value,
local!oldValue,

{

a!textField(
label: "E-Mail ",
value: local!oldValue,
refreshAfter: "KEYPRESS",
saveInto: {
local!value,
if(
len(
local!value
) - len(
local!oldValue
) > local!maxCharInput,
{},
a!save(
local!oldValue,
local!value
)
)
},
validations: {
if(
len(
local!value
) - len(
local!oldValue
) > local!maxCharInput,
"Copy Restricted!!!",
{}
)
}
)
}
)

RE: Preventing the user from copying and pasting from one text field to another.

arikd398 — Wed, 13 Jun 2018 07:50:42 GMT

Hi Singh002 (abhisheks997) ,

As everyone suggested masking can be one of the solution to achieve this use case so you can just add masked : true.

a!textField(
label: "Password",
labelPosition: "JUSTIFIED",
value: ri!user.password,
saveInto: ri!user.password,
readonly: false,
disabled: false,
masked: true,
validations: {}
)

RE: Preventing the user from copying and pasting from one text field to another.

Sidhant Behura — Wed, 13 Jun 2018 06:45:53 GMT

Disabling copy paste is something which is done on the HTML/Javascript level and currently Appian doesnt allow us to write customized html page. So currently there is no way to achieve this requirement of yours. You can use mask option if that suffices your requirement.

RE: Preventing the user from copying and pasting from one text field to another.

Singh002 — Wed, 13 Jun 2018 06:41:02 GMT

I too think masking is the only option .

RE: Preventing the user from copying and pasting from one text field to another.

gurdeeps — Wed, 13 Jun 2018 06:08:44 GMT

Hi, Appian does not provide this feature but masking can be a solution to this.

RE: Preventing the user from copying and pasting from one text field to another.

Eliot Gerson — Tue, 12 Jun 2018 21:15:55 GMT

Just for your own edification, it's not necessary to write a custom rule for this. Appian actually has this functionality out of the box! The "masked" option for text fields will determine whether the text is masked on input.

RE: Preventing the user from copying and pasting from one text field to another.

malcolmp — Tue, 12 Jun 2018 21:08:33 GMT

Hello Singh002,

While I'm not aware of a way to disable an operating system's built in copy and paste capability, there are other strategies you can employ to keep data from being copied and pasted. Once a field is filled out, you can change the display value to asterisks so that the information can't be copied and pasted. See below code for example.

I hope this helps.

Malcolm

load(
local!customer1Address,
local!customer2Address,
a!formLayout(
firstColumnContents: {
a!textField(
label: "Customer 1 Address",
value: if(
rule!APN_isEmpty(local!customer1Address),
"",
joinarray(repeat(len(local!customer1Address), "*"), "")
),
saveInto: {
local!customer1Address
}
),
a!textField(
label: "Customer 2 Address",
value: if(
rule!APN_isEmpty(local!customer2Address),
"",
joinarray(repeat(len(local!customer2Address), "*"), "")
),
saveInto: {
local!customer2Address
}
)
}
)
)

RE: Preventing the user from copying and pasting from one text field to another.

Robert Shankin — Tue, 12 Jun 2018 17:36:04 GMT

Hi -
A user can never paste into a field that is disabled or read only.
Other than that, there isn't a way to restrict paste into a text field that is enabled and writeable right now.

What's your use case?

RE: Preventing the user from copying and pasting from one text field to another.

Eliot Gerson — Tue, 12 Jun 2018 17:33:16 GMT

It would probably be helpful if you could elaborate on your use case. But one option might be to make the first text field masked.

RE: Preventing the user from copying and pasting from one text field to another.

Dan Lluhi — Tue, 12 Jun 2018 17:33:13 GMT

Unfortunately, you won't be able to prevent a user from using copy and paste functionality. However, you can ensure that two fields do not contain the same value by using a validation (e.g. if(ri!field1 = ri !field2, "Error message", ""). If you're dealing with a grid and you want to ensure that an entire column has unique values, you can use the fn!contains() function to see if the entered value already exists in another row. Hope this helps!

Dan