MOSS 2007: Field validation during Check-in/Publish action in Publishing Page

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  Hi Soundar_SP,

  Java script can’t achieve it. Because java script can't capture then check in event . So you have to use event handler to do this. Here is the simple code.

      public override void ItemCheckingIn(SPItemEventProperties properties)

          {

              base.ItemCheckingIn(properties);

              SPListItem item = properties.ListItem;

              using (SPSite thisSite = new SPSite(properties.WebUrl))

              {

                  SPWeb thisWeb = thisSite.OpenWeb();

                 if(item["Title"]=="A")

                  {

                      properties.Cancel = true;

                      properties.ErrorMessage = "Item Title can't be A";

                  }

              }

          }

  More about event handler please refer to the following link.

  http://madsharepoint.blogspot.com/2009/07/basic-event-handling-in-sharepoint.html

  Thanks,

  Jack

  Tuesday, February 7, 2012 9:04 AM

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  Hi Jack Gao,

                   Thanks for your time and inputs.

  Actually, based on my client requirements, the alert should be a warning message which he can ignore.

  So, i basically need a Confirm box with option "Ok" and "Cancel". On clicking "Ok" the user will be retained in the page and on clicking "Cancel" he will proceed with check-in process. Hence, i cannot use an eventhandler.

  ---

  soundar

  
  

  • Edited by Soundar_SP Tuesday, February 7, 2012 10:51 AM

  Tuesday, February 7, 2012 10:50 AM
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  Had some breakthrough.

  I tried using window.onbeforeunload to make the check. But, the "Cancel" event in the message box throws some unspecified error !!

  Pl. find the same code below.

  <

  script type="text/javascript">

  window.onbeforeunload = CallAlert;

  function CallAlert() {

  var myform;

  myform = document.forms[

  "Form1"];

  if (!myform) {

  myform = document.Form1;

  }

  if(myform.__EVENTARGUMENT.value == "checkInPage")

  {

  //Perform the field validation

  if(!valid)

  {

  return "Field Validation falied!! Do you want to continue";

  }

  }

  }

  </

  script>

  ---

  soundar

  Wednesday, February 8, 2012 2:38 PM
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  Finally found the required solution!!!!

  Cancel event causing "UnspecifiedError" on theform.Submit() in postback can be handled through the approach shown in the below link.

  http://tinisles.blogspot.in/2005/10/onbeforeunload-throwing-errors-in-ie.html

  Now, the cancel event worked fine. But, the form did not responded to "Check-in" events later.

  To overcome this should set the _spFormOnSubmitCalled = false;

  Final code will look like this.....

  <script type="text/javascript">

  var UNLOAD_MSG = "Field Validation Failed!";
  var __oldDoPostBack = __doPostBack;
  __doPostBack = CatchExplorerError;
   
  function CatchExplorerError (eventTarget, eventArgument)
  {
      try
      {
          return __oldDoPostBack (eventTarget, eventArgument);
      } catch (ex)
      {
          // don't want to mask a genuine error
          // lets just restrict this to our 'Unspecified' one
          if (ex.message.indexOf('Unspecified') == -1)
          {
              throw ex;
          } 
          else
          {
          window.setTimeout(function() { _spFormOnSubmitCalled = false; }, 10);
          }          
      }
  }

  function doBeforeUnload() {

    var theform;

      theform = document.forms["aspnetForm"];  
        if (!theform) {
              theform = document.aspnetForm;
  }         
         if(theform.__EVENTARGUMENT.value == "checkInPage")
         {
  //Field Validation logic
     if(window.event)
        window.event.returnValue = UNLOAD_MSG; // IE
     else
        return UNLOAD_MSG; // FX
   
        }  
    
  }

  if(window.body)
     window.body.onbeforeunload = doBeforeUnload; // IE
  else
     window.onbeforeunload = doBeforeUnload; // FX
        </script>

  ---

  soundar

  • Marked as answer by Soundar_SP Thursday, February 9, 2012 10:20 AM

  Thursday, February 9, 2012 10:20 AM