If the items on the page are not "overflowing" out of the container's size, scrolling will be impossible even if the scrollbars are visible.
By default if the property AutoGenerateColumns
is set to false
, you would have to define the columns manually. This is done because the user may not want to display some of the properties of the item and would like to see only the first three and last of them.
When this property is set to true, GridView creates the column, based on the properties of the object to which it has been bound.
Can you provide us with more information about your case when the data disappears and which version of our controls you are using?
You can find different tips & tricks about fixing degraded performance in our online documnentation: link
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