Admin tool: unable to edit/delete custom fields
I have a CES Source configured to index a database table and I've created approx. 3300 custom fields. The issue is that I cannot delete or edit a field from the Admin tool. When i click a field to edit, nothing happens and when i click the field again after a few seconds I get the exception below. If i open up Firebug to check if there are any js errors, the browser just locks up with no end. The same happens when I try to delete the field.
This seems to be related to the number of fields on a source, as I can open edit fields on other sources that have fewer custom fields.
The weird part is that I do not see any exceptions reported in the CES logs or the windows even log.
CES Version: 7.0 x64 Build 7914.0
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that
configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
If your problem is related to the number of fields, perhaps that the:
< add key="aspnet:MaxHttpCollectionKeys" value="50000" />
trick of that other question would help.