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Restrict text field only to alphabets and spaces

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Posted on by rameshmukka

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I have a text field "City Name" on my Power Apps Canvas App. How can I restrict the text field only to Alphabet and Spaces. It shouldn't allow any special characters or numbers.

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Pstork1 69,387 Most Valuable Professional on at

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There is no easy way to limit the characters that a user enters into a text field. However, you could easily setup a label with an error message and have that message display if the user types a non-allowed character by testing the input with an IsMatch() regex expression.

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mdevaney 29,991 Moderator on at

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@RameshMukka
This is not possible in a Power Apps text field. You can restrict input to numbers only but not letters.

As a workaround you can check whether only letters and spaces were input into the text box using this code

IsMatch(TextInput1.Text, "[a-zA-Z\s]+")

More details on the ISMATCH function here:

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-ismatch

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v-yutliu-msft Microsoft Employee on at

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Hi @RameshMukka ,

Do you want to restrict a textinput that user could only enter Alphabet and Spaces?

I'm afraid it's not supported to directly restrict a textinput to not allow characters or numbers.

For a textinput, you could only restrict whether you enter number or text. Text includes Alphabet, Spaces and character.

As an alternative solution, I suggest you add a justification when updating.

If the data in textinput includes characters or numbers, you could not update data and get a warning.

If the data in textinput only includes Alphabet and Spaces, you could update successfully.

You just need to set the submit button's OnSelect like this:

If(IsMatch(TextInput1.Text, "[a-zA-Z\s]+"), //[a-zA-Z\s] represents Alphabet and Spaces, + represnets one or more SubmitForm(formname), Notify("please do not enter character or number in this field!",NotificationType.Warning) )

Best regards,

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Sri 559 on at

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Hi,
In my case I have a number field which allows + and - symbol to enter in the field and gives a error message " The value - cannot be converted to a number". For other special characters it's not allowing to enter.

Any help would be greatly appreciated.

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