Datagrid Selection: Consistency & Placement

Question

I'm working on an application that heavily utilizes datagrids (unfortunately) and I question the placement of the select option. Refer to my attachment and the list below:

Select Option - Datagrid:

• I've allocated the first column for selection when the user needs to select or compare items. So far, so good.

Select Option - Datagrid (2):

• Sometimes the user can select from a list of recipients and the same first column convention still makes sense. Great!

Select Option In Datagrid:

• In some instances the user needs to select from a list of packages (e.g., item 1, item 2, etc.) so they are applied to a location. Different from the first two examples, but for good reason.

Select Option - Datagrid(2):

• A list of flights with data progressing in the order you would expect. As a result, the select option is the last column.

Questions

• Is Select Option In Datagird (2) breaking the convention set in the first two examples? Does the context justify the variation?

• If Select Option - Datagrid (2) and Select Option In Datagird (2) appeared within the same page, would the different selection orientations slow users down?

Answer 1

Is the Select Option in Datagrid(2) reflects order for user task? My thoughts, user first chooses Depart and Arive (finally, the goal is to get from A to B?), then Airline. Flight# is a technical info which doesn't drive a decision.

Considering this you could re-order columns in Select Option in Datagrid(2) and for the consistency and familiarity locate the selection as the first column. This eliminates the second question, too.