Error using Full Text Search: Instance property '' is not defined for type

Error using Full Text Search: Instance property '' is not defined for type

Posted by: chrishill on 7 August 2017, 7:29 am EST

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  chrishill

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  Posted 7 August 2017, 7:29 am EST

  
  
  Hi!

  I am using full text search against a grid containing 5 columns of string and ints based on data pulled from a SQL table.

  I'm getting an error, "Instance property '' is not defined for type..." when the user enters any char in the search box.

  A screen shot of the exception point is attached and the full detail is:

  {System.ArgumentException: Instance property '' is not defined for type 'HCCFOnline.ServiceReferenceMaster.VW_PRO_CONTACT_LITE'" &

  vbCrLf & " at System.Linq.Expressions.Expression.Property(Expression expression, String propertyName)" & vbCrLf & " at

  C1.Silverlight.DataGrid.FilterDescription.MakePropertyAccess(Type type, Expression param, String propertyPath)" & vbCrLf & " at

  C1.Silverlight.DataGrid.FilterDescription.BuildOperationExpression[T](ParameterExpression param, String propertyPath, FilterOperation

  filterOperation, FilterType filterType, Object value)" & vbCrLf & " at C1.Silverlight.DataGrid.FilterDescription.BuildExpression[T]

  (FilterDescription filterDescription)" & vbCrLf & " at C1.Silverlight.DataGrid.FilterDescription.GetExpression[T]()" & vbCrLf & "

  at HCCFOnline.OrFilteredDataSourceView.ToMSFilterDescriptions[T](DataGridColumnValue`1[] filterDescriptions)}

  
  
  Please can you help me understand what is happening and what I need to do to fix it. Wrapping a Try Catch works (:)) but this doesnt

  help me understand.

  Also, the ui seems very slow to respond when typing chars in the search box when the grid contains > 2500 rows...any tips to speed this up

  Thanks!
  
  Chris

  
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  c1_leov

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  Posted 7 August 2017, 7:29 am EST

  Hi Chris,

  Could you attach the sample? Or the data items you are using?

  I guess some of your types is not supporting the predicate we are applying, or we are not handling a null data value properly, or something like that...

  Regards

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  c1_gabrielr

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  Posted 7 August 2017, 7:29 am EST

  Hi Chris,

  It's difficult to tell what´s happening without having the running app. I guess a FilterDescription is being created without the correct property name. To perform the filter we need to access the property value in the object we are currently filtering. It´s seems that a property description with an empty name was created or that a property we are trying to access doesn´t exist in the VW_PRO_CONTACT_LITE object. What is the value of the FilterMemberPath ? Does the VW_PRO_CONTACT_LITE have a public property with that name ?

  Again, it´s difficult to guess with so little information. If you can attach a running app Í'll be glad to take a look at it.

  Regards

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  c1_leov

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  Posted 7 August 2017, 7:29 am EST

  Hi Chris,

  Please let us know when you have any update about this.

  Thanks!

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  chrishill

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  Posted 7 August 2017, 7:29 am EST

  Hi Leo - we are busy preparing a sample app for you. Heopfully be with you before Fri :)

  Best regards

  Chris

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  c1_leov

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  Posted 7 August 2017, 7:29 am EST

  Sure, just wanted to bump the thread in case you have missed it.

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  chrishill

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  Posted 7 August 2017, 7:29 am EST

  Hi Leo

  We have a sample project ready, but the forum bombs when we try and attach the zip (5mb). Do you have an email address I could use instead?

  Thanks

  Chris

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  c1_brunom

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  Posted 7 August 2017, 7:29 am EST

  Chris,

  Leo's email address is leov at componentone dot com.

  Bruno

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  jporschart

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  Posted 24 February 2021, 10:39 am EST

  I’m having the same issue. Can you send me the sample app? Jporschart at srs dot Illinois dot gov.