[Solved] How can I change the default operator for a text column filter?

[Mark]

I would like to change the default behaviour of a Text column filter control.
Currently, the default operator is set to 'Is Equal To', but I would like it to default to "Contains".

I tried deriving from DataGridTextFilterControl and overring the BuildDescription method.
However, this approach failed because it tried to apply a wrong theme.

Is there a way to achieve this?

[Rosy Topchiyska]

Hello Mark,

Thank you for contacting us.

I have attached a sample project that demonstrates how you can change the default text operator of the filter control. First you can create a custom filter control that inherits from DataGridTextFilterControl and override its Initialize() method where you can change the default operator. Then you have to create a custom command that inherits from DataGridCommand class with command Id = FilterButtonTap. You have to override the Execute(...) method  to change the filter control with the custom one. Finally, add the custom command to the RadDataGrid.Commands collection.

I hope this helps.

Regards,
Rosy Topchiyska
Telerik

 

 

[Mark]

Hi Rosy,

I didn't had the time to process your response until now.
Thank you for your solution, it works perfectly.
However, I would also like to change the case sensitivity in this control. (to be non-case sensitive)
Could you help me with this as well?

kind regards,
Mark

[Rosy Topchiyska]

Hello Mark,

Thank  you for writing.

You can enable/disable the case sensitivity with the "aA" button next to the TextBox in the filtering UI.

Please, let us know if you have other questions.

Regards,
Rosy Topchiyska
Telerik

 

 

[Mark]

Hi Rosy,

Thanks for you answer. 
Actually I wanted to know if I could programmatically default the state of that button to 'case insensitive'.
But I allready figured it out.
There is a property IsCaseSensitive on the DataGridTextFilterControl from which the custom filter control is derived.
Setting this property to false inside the initialize method achieves the correct behaviour.

kind regards,
Mark