Andreas Wijaya's Blog

Hi, If your ADFS cert is expiring, the SharePoint site will throw this error: The SAML Assertion is either not signed or the signature’s KeyIdentifier cannot be resolved to a SecurityToken. Ensure that the appropriate issuer tokens are present on the token resolver To resolve this, just go into your ADFS server, export the new Token Signing certificate, then run this in CA server: $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2("D:\SSL Certificate\ADFSCert.cer") New-SPTrustedRootAuthority -Name “Token Signing Certificate” -Certificate $cert $sts = Get-SPTrustedIdentityTokenIssuer $sts | Set-SPTrustedIdentityTokenIssuer -ImportTrustCertificate $cert And voila! it will start working again. HTH, Andreas

Hi there, Just want to share something re. the issues I encountered when using SPD to create SP 2010 workflows and then uploading them to other environment. I found that after I made some changes to my workflows and then uploaded them to uat environment, my changes were not picked up. First after reading some SPD cache issue here , I thought this might have been my issue (not getting the latest assembly when Saving As Template from SPD DEV) So I cleared the cache files as instructed and tried to upload them again to UAT and activated the solution + feature. Then I noted these points :  1. When you deactivate + remove solution from Solution gallery, it doesn’t remove it from SharePoint. SPD still lists the workflows! 2. Only when you activate the site feature then the SPD will recognize it and Modified Date is updated. I then checked my updated workflow and it still had the old logic! So I deleted my workflows through SPD (in UAT) and re-uploaded and...

Hi folks, Recently in my SP-CRM project I noticed that my session state that I enabled in SharePoint doesn't use SQL Server for storage (it uses inproc). Although it works fine so far, but the recommended way is to enable sessionstateservice using Enable-spsessionstateservice powershell cmdlet. So I did this, and my application was broken. After debugging, I realized it could not store my object into the session table in the database. I read up documentation and the requirement for storing object is that the object must be serializable . I checked my class and it already had serializable attribute. However, there is a property with the type of the generated class created by crmsvcutil and I had a feeling this was the culprit, and I was right! The solution is to not use any of the crmsvcutil generated class in your session variables, otherwise you wouldn't be able to save it.  HTH, Andreas

Hi, Just to post some helpful bindings and JavaScript functions that I used multiple times throughout my projects. I have been using this in creating forms using jQuery and Knockout with Ajax web services. DatePicker Update: be careful if you need to deal with different timezone as client timezone and server timezone might not be the same. To avoid this issue altogether you can use knockout-jqueryui extension so that the value is written as string. This way we only need to deal with server timezone. Radio Yes/No buttons Synchronous ajax call (normally used to populate dropdown values) Get QueryString IE9 Filter problem That's all for now. Hope this helps. Andreas

Hello, Continuing with the limitation of anonymous access in association to SharePoint lists, it turns out there is another one! When anonymous users add a new list item and we want to send an email, we will think of either 'Alerts' or 'Custom Workflow'. Using alert will work fine if the email is redirected to SP users. However if the email wants to go to certain email addresses or the person submitting the item (through email field for example) then 'Custom Workflow' is the way to go. So I opened SPD 2013 and created some reusable workflows with 'To' set to Association parameter and the Email field on the list item. Also the send email is contained in the Impersonation step. Workflow is then published and associated to the list. I set the trigger to run the workflow when new item is created. Testing the workflow while logged in works fine - however when adding a new item anonymously, the workflow is just waiting and never triggered. Having rea...

Hi, Sometimes you want to enable anonymous access to be able to add a list item but at the same time attaching some documents. After good few hours playing around trying to make this work, turns out that we can achieve this functionality. The trick is to use RunWithElevatedPrivileges method for the file upload. We also want the file upload functionality to be available on the NewForm.aspx as it wouldn't make sense to put it in other forms as any user would be able to upload files to other records. The result will be something like this: When it is saved, the user is redirected to the display form: The close button then will take the user back to the homepage (or any page you desire) The steps: 1. Create an ascx control to host your file upload control in your project.  Put the below script in the ascx as well (credit to this post ): The code behind: 2. Create custom form template. You have to put the ascx in the CONTROLTEMPLATES folder of the ...

Hi all, I recently came across this issue. My visual webpart ascx file does not get updated when updating wsp solution. Same issue as this post  or this post . I have checked my ascx inside the wsp file and also looked at the g.cs file generated by SharePoint. Both were fine. It used to be working fine when I updated my webpart files. This issue happens after I merged the code from another branch and built the solution. I suspect this has something to do with it. I tried changing my ascx file so that it regenerates the g.cs file - but still doesn't work. I then rolled back my code (before merging), updated the code manually and rebuilt the solution. This time it works! my webpart is updated again. So, there is a bug with moving webpart code around projects (as indicated in the first post above) or merging the code (in my case). I hope this issue will get resolved as it will be annoying to not being able to merge some visual webpart codes between branches. Update: this...