Complex validation in Grid

[Bilal]

Hi,

I have the following grid / columns

Left-Operand     Left-Operator     Value      Right-Operator      Right-Operand
                                                        x                    >                            D
        C                       <=                  x                    <=                          D
        B                       <=                  x                     <                           C
        A                       <=                  x                     <                           B
                                                        x                     <                           A

The user needs to fill in the values for A, B, C and D. In such a way that D > C > B > A.

I am using a editable grid with only Left and Right Operands editable, the rest is read only.

How could I enforce such a validation while the user is editing the values?

Thanks 
  

[Alexander Valchev]

Hi Bilal,

Kendo UI Validator do not have a build-in validation rule like the one you described. You may consider using custom validation rule.

Regards,
Alexander Valchev
Telerik

 

 

[Bilal]

Thanks. Can you at least guide me on how to approach such a validation using either a Grid or no grid? 

[Alexander Valchev]

Hi Bilal,

In terms of Kendo UI you should know that the custom validation rule is evaluated for each input in the validated form. In order to mark the validation as successful, the custom validation rule should return true. In order to mark the validation as failed, the custom validation rule should return false.

Regards,
Alexander Valchev
Telerik