Conditional formatting ICustomTypeDescriptor

[Mrudang Majmudar]

I have rows which implement ICustomType Descriptor

grid binds to data and displays the data
however if i use Conditional formatting for double values using LessThan operator i get below error .


The binary operator LessThan is not defined for the types 'System.Object' and 'System.Object'.

[Jawahar Jeevanandan J]

Hi Mrudang,

Thanks for your patience.

Could you please let us know what you are trying to acheive using ICustomTypeDescriptor. Also if possible, could you please provide the sample to reproduce this issue. This will help us to resolve the issue more quickly.

Please let us know if you have any queries.

Thanks,
Jawahar.

[Michael Culley]

Being this is the WPF world wouldn't you just use DataTemplates for conditional formatting?

[Mrudang Majmudar]

Basically i have a row object implementing ICustomTypeDescriptor


returning PropertyDescriptorCollection to create for columns.

I need to do this for custom display of data


using Conditional format i can dynamically add conditions to VisibleColumn .

PropertyDescriptor returns correct type of the property i.e if column is double it returns double.

it i.e. Conditional formatting work fine if it is a generic collection i.e ObservableCollection

[Sankara Narayanan N]

Hi Mrudang,

Sorry for the delayed response.

Since this forum has been created as an incident and the issue reported here was logged as defect in that incident, please followup the Incident I91317.

Please let us know if you have any queries.

Thanks,
Sankar