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To use this functionality, first click the check box of all of the items that are desired to update simultaneously. When the items desired are selected, the User can then click the 'Bulk Update Selected' button 
the button, and all the selected records will be updated.
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Sometimes it is not practical to select on an individual basis the records that need updating if there are a significant number requiring an update. The 'Bulk Update All' button 
The button can assist with this. It is not necessary to modify 'ALL' records when using 'Bulk Update All'. This may be somewhat counter intuitive, but Bulk Update All will 'ONLY' modify all the record currently in the grid. This means that a User can filter the results of the Grid and only modify a specific section of information.
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