Java scripting in SharePoint custom lists

Question

In SharePoint lists, you are not permitted to upload files which have any kind of special characters in their file name. (For eg: file&.doc cannot be uploaded)

So I have a JavaScript code that validates the file name on submitting the list and creates a dialogue box that tells the user to rename the files before uploading and only then you can proceed.

My issue is, the code only works for 1 document, if more than 1 document is uploaded. it does not validate the second item. I need help so that I can upload n number of items and it validates eac

<Script type="text/javascript"> 
function PreSaveAction() 
{ 
var attachment; 
var filename=""; 
var fileNameSpecialCharacters = new RegExp("[~#%&*{}<>;?/+|\"]"); 
try { 
attachment = document.getElementById("idAttachmentsTable").getElementsByTagName("span")[0].firstChild; 
filename = attachment.data; 
} 
catch (e) { 
} 
if (fileNameSpecialCharacters.test(filename)) { 
alert("Please remove the special characters like ~#%&*{}<>;?/+|\ from the file attachment name and reattach the file.");
return false; 
} 
else { 
return true; 
} 
} 
</script>

Wug · Accepted Answer · 2012-08-14 17:54:43Z

1

allow only certain files in 2007 sharepoint list

Edit: included code from comment:

<Script type="text/javascript">
function PreSaveAction()
{
    var attachment;
    var filename="";
    try
    {
        attachment = document.getElementById("idAttachmentsTable")
                             .getElementsByTagName("span")[0]
                             .fi‌rstChild;
        filename = attachment.data;
    }
    catch (e) { }
    if (!filename.match(/^(.+?\.xlsx?)$/i))
    {
        alert("Please attach only excel files.");
        return false;
    }
    else
    {
        return true;
    }
}
</script>

edited Aug 14, 2012 at 17:54

Wug

13.3k5 gold badges36 silver badges57 bronze badges

answered Mar 7, 2011 at 21:20

Justin

111 bronze badge

Sign up to request clarification or add additional context in comments.

1 Comment

Justin Over a year ago

for .xls and .xlsx

code<Script type="text/javascript"> function PreSaveAction()  {  var attachment;  var filename="";  try {    attachment = document.getElementById("idAttachmentsTable").getElementsByTagName("span")[0].firstChild;    filename = attachment.data;   }   catch (e) {   }   if (!filename.match(/^(.+?\.xlsx?)$/i)) {    alert("Please attach only excel files.");    return false;    }    else {     return true;   }  } </script>

Anthony Graglia · Accepted Answer · 2011-03-07 07:42:39Z

0

You cant loop through the list of documents? Put all the file names into a structure / Array / something and look at them all?

answered Mar 7, 2011 at 7:42

Anthony Graglia

5,4455 gold badges49 silver badges75 bronze badges

Comments

sra · Accepted Answer · 2012-01-04 07:01:33Z

0

I created a modified version that will check for all attachments. The one liste here, only checks for the first attachment.

Here is mine

function chechAttachments() { 

var spanTag; 

var filename=""; 

var fileNameSpecialCharacters = new RegExp("[~#%&*{}<>;?/+|\"]"); 

try { 

spanTag = document.getElementById("idAttachmentsTable").getElementsByTagName("span");

for (var i = 0; i < spanTag.length; i++) {

filename = spanTag[i].innerHTML;

}

} 

catch (e) { 

} 

if (fileNameSpecialCharacters.test(filename)) { 

alert('Attachments cannot contain special characters such as "[~#%&*{<>;?/+|\"]".\n\nPlease remove the special characters from the file attachment name.');

return false; 

}  

}

edited Jan 4, 2012 at 7:01

sra

24k8 gold badges59 silver badges89 bronze badges

answered Apr 21, 2011 at 18:54

Dave Patel

111 bronze badge

Collectives™ on Stack Overflow

Java scripting in SharePoint custom lists

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related