The operators for string will be shown if the property types are not set in the dataSource model. The property types should be explicitly set when using a dynamic model. Assuming that the setup is the same as in the project from the support ticket that you have openned, you should use the following code to set the model fields:
.DataSource(dataSource => dataSource
.Read(read => read.Action(
This should also resolve the problem with the exception and the icon since an autocomplete with a startswith filter will not be used for the numeric fields.
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