Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 7025

Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 2162

Deprecated: Hook imagify_allow_picture_tags_for_webp is deprecated since version 2.2! Use imagify_allow_picture_tags_for_nextgen instead. in /www/collab365_296/public/wp-includes/functions.php on line 5758
Document Set content type with a lookup on a large list - Collab365
Deprecated: strstr(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1145

Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1152

Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1155

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1162

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1165

Deprecated: strstr(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1145

Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1152

Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1155

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1162

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www/collab365_296/public/wp-includes/functions.php on line 1165

Warning: Undefined array key "url" in /www/collab365_296/public/wp-content/plugins/thrive-visual-editor/thrive-dashboard/inc/smart-site/classes/class-tvd-smart-shortcodes.php on line 85

2013-11-18

We encountered the following issue in our SharePoint 2013 installation.

We implemented a content type which inherited from the Document Set content type. In this content type we included a lookup column which pointed to a custom list. This custom list has over 30000 items (List view threshold is 50000 so this is not an issue in our environment.)

When we try to view or edit the properties of the Document set via the UI (DispForm.aspx, EditForm.aspx), an error appears on the screen (“Something went wrong”) and we get the following error in the ULS:

System.InvalidOperationException: Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property

The error is caused by the the lookup column (pointing to the large list) that SharePoint tries to show when it displays the content type inheriting from Document Set. Strangely this error occurs only in this content type. We have other content types inheriting from the Item CT, which include this very same site column, and behave normally. Perhaps, in the case of the Document Set there is some intermediary step that generates this error, before showing the properties.

Anyway, the workaround for the time being is to stop showing this column in the forms.

(Visited 371 times, 1 visits today)

About the author 

Aldo Mar

Summit Bundle

Get 200+ hours of Microsoft 365 Training for 27$!

Master Office 365, Power Platform & SharePoint & Teams With 200+ Hours Of Training Videos and 108 Ebooks in the Collab365 Academy. This offer is insane and is only available for a limited period.