How to validate the text entered in a field should start with \\ using client script

[ss123]

Hi all,

We need to validate the text/character entered in a single line text field type to

always start with this special character  " \\ "

Can you help me do it using client script? Thanks!

[Gangadhar Ravi · Accepted solution]

Hi @ss123 

You can implement onChange client script. below is example, I tried this on short description field and it is working fine.

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
   if (isLoading || newValue === '') {
      return;
   }
   if (newValue && !newValue.startsWith("\\")) {
        // If it doesn't start with '\', display an error message and clear the field
        alert('The value must start with the "\\" character.');
        g_form.clearValue('short_description');  // Optional: Clear the value to force re-entry
    } 

   //Type appropriate comment here, and begin script below
   
}

 Please mark my answer correct and helpful if this works for you.

[Mani A]

var name= g_form.getValue('name'); 

 if (!name.startsWith('\\')) {

        g_form.addErrorMessage('The input of name must start with  \\');  

or use alert(");

    }

[Mani A]

@ss123  please accepted as solution and helpful if it resolved