JavaScript error "Return statement outside of function"

Question

Here is my code. I am calling a JavaScript function in the code after insert query fires. But I get the error "return statement outside of function".

ClientScript.RegisterStartupScript(GetType(), "id", "return showPatientInfo('" + txtPatientID.Text + "');",true);

function showPatientInfo(pid) {
    //alert(pid);
    RedirectToPage("Create_Order.aspx", "pid=" + pid);
    return false;
}

Peter Mortensen · Accepted Answer · 2020-10-08 20:19:58Z

1

I really wanted to rewrite your code as more idiomatic JavaScript. In the process, I found that formBypassQueryString variable was never getting assigned, which would probably cause problems. Here is my version:

function showPatientInfo(pid) {
  redirectToPage("Create_Order.aspx", "pid=" + pid);
  return false;
}

function redirectToPage(pageName, queryString) {
  if (pageName === "" || queryString === "") return;

  var keyValues = queryString.split("&"),
      form = createQueryStringForm(pageName);

  for (var i = 0; i < keyValues.length; i++) {
    var keyValue = keyValues[i].split("="),
        field = createQueryStringField(keyValue[0], keyValue[1]);

    form.appendChild(field);
  }

  form.submit();
}

function createQueryStringField(name, value){
  var field = document.createElement('input');

  field.setAttribute('type', 'hidden')
  field.setAttribute('name', name)
  field.setAttribute('value', value)

  return field;
}

function createQueryStringForm(pageName){
  var form = document.createElement('form');

  form.setAttribute('id', 'form-bypass-query-string');
  form.setAttribute('method', 'POST');
  form.setAttribute('action', pageName);

  return form;
}

edited Oct 8, 2020 at 20:19

Peter Mortensen

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answered Apr 26, 2012 at 6:54

Matt Briggs

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3 Comments

harsh Over a year ago

Hi MATT, i have applied ur code but getting same error "return statement outside of function"

Matt Briggs Over a year ago

@harsh: Other then that variable not being defined (which would cause an error, but not what you were getting), there is nothing technically wrong with your code. My version is just closer to the way a javascript guy would do the same thing :)

harsh Over a year ago

:when i remove return statement from code behind..ClientScript.RegisterStartupScript(GetType(), "id", "return showPatientInfo('" + txtPatientID.Text + "');",true); ....code executes fine but getting error "object doesn't support this property or method"..and when i add return statement then give me error "return statement outside of function"..i think should my syntax is correct when i call javascript function from codebehind

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