serializer.Serialize Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property code example
Example: Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.
<configuration>
<system.web.extensions>
<scripting>
<webServices>
<!-- Update this value to change the value to
a larger value that can accommodate your JSON
strings -->
<jsonSerialization maxJsonLength="86753090" />
</webServices>
</scripting>
</system.web.extensions>
</configuration>