On one of my current projects I have had cause to ensure that no special characters are in the Title field of a SharePoint 2010 list form.
This is because we are using the Title field as the Plan Name in a Project Create process in Project Server 2010. As a result we need to ensure that the Event Handler we are creating has validated data that the PS2010 PSI Web Service can accept for the Plan Name.
I created the following script to validate the data being entered into the Title field of the list form as it is being entered.
I manipulate the Save Buttons in the ribbon and the list form to ensure that the user cannot enter invalid data into the form.
To ensure a good user experience, I add an extra <DIV> element next to the Title field to notify the user of what is going on.
Example Code:
1 <script type='type/javascript'>
2
3 _spBodyOnLoadFunctionNames.push("attachToTitleField");
4
5 function attachToTitleField() {
6 var titleField = $('input[title=Title]'); //Find title field on the form
7
8 //Add a DIV element to provide a place for an error message from the RegEx validation
9 titleField.parent().append("<div id='GilesH_titleValidation'></div>");
10
11 //Use jQuery to attach the validateAlphanumeric function on keyup
12 titleField.keyup(function() {
13 validateAlphanumeric(titleField.val());
14 });
15 }
16
17 function validateAlphanumeric(stringValue) {
18
19 //Allows alphanumeric only for the 1st character
20 //after the 2nd character, alphanumeric and spaces allowed upto 255 characters
21 var regExpressionValue = /^[0-9A-Za-z][0-9A-Za-z\s]{0,255}$/;
22 var re = new RegExp(regExpressionValue);
23
24 if (stringValue.match(re)) {
25 //alert("Successful match"); //Debug
26
27 //Allow Save
28 $('a[id=Ribbon.ListForm.Edit.Commit.Publish-Large]').attr("style", "display:inline-block;"); //Show Ribbon Save Button
29 $('input[id*=SaveItem]').attr("disabled",""); //Re-enable Form Save Button
30
31 //Blank Error Message
32 $('div[id*=GilesH_titleValidation]').text(""); //Blank custom error message
33 } else {
34 //alert("No match"); //Debug
35
36 //Stop Save
37 $('a[id*=Ribbon.ListForm.Edit.Commit.Publish-Large]').attr("style", "display:none;"); //Hide Ribbon Save Button
38 $('input[id*=SaveItem]').attr("disabled","true"); //Disable Form Save Button
39
40 //Provide Error Message
41 $('div[id*=GilesH_titleValidation]').text("The title you have entered is invalid. Only alphanumeric characters and spaces are allowed.");
42 }
43 }
44
45 </script>
46
47
SharePoint (and Project Server) Shenanigans 
Hi can u pl stel me where did u plug in this code in ps 2010??
Hi,
On the newform / editform of the list add a content editor web part. You can then run the code inside that.
I would place it at the below the form or use the $(document).ready / SP Onload Body Functions to ensure the page has loaded before you affect the DOM.
Alternatively, create a feature that adds JavaScript to every page then run the code inside that.
Kind Regards
Giles
Reblogged this on Mai Omar Desouki – Avid SharePointer.
thanks for this, I had to remove the line numbers from your code snippet using a reg exp:
s/^..//g