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DataFilter Default Operator

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DataFilter

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answered on 20 Jul 2012, 08:56 AM

Hello,

We have some questions regarding the behavior that you expect.

Imagine that you have a class Person with two properties FirstName and LastName. Imagine you were able to set the default operato, let's say to EndsWith.

Now, you create a new filter condition which initially looks like this: FirstName EndsWith <Unset>. You then change the operator by hand to StartsWith, i.e. you have manually touched it through the UI. You then go and change the Member to LastName. Do you expect the operator that you last selected, i.e. StartsWith to be kept, or do you expect the default operator of EndsWith to replace the one that you have chosen manually.

Since there are hundreds of ways that we can implement this and we do not know our customers' expectation, we are trying to learn that is the behavior that you would expect. Any insights on this matter will help us implement this feature in the exact way that you expect.

Thanks in advance.

Greetings,
Ross
the Telerik team

Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

answered on 20 Jul 2012, 02:18 PM

In our specific business case the default operator would be configured on a field by field basis. Using your example of class Person...

The default operator for FirstName is StartsWith
The default operator for LastName is EndsWith.

When a new filter condition is initially created, the operator should be set accordingly. If no default operator is specified, then the first in the list.

If In that same filter condition (FirstName is currently chosen) and then LastName is chosen from list of fields, the default operator should change from whatever it is to EndsWith.

Basically, when you select FirstName from the list, the operator is always set to StartWith; when you select LastName the operator is always set to EndsWith

Thanks for your help!