You can hide the summary row for a particular summary value by using the QueryRowHeight event. Using this event, you can set the row height as 0 to hide the row of the grouped columns.
In the following code example, set the particular summary value as 0. When the summary value is zero, then the summary row is hidden in the Grid of the grouped columns.
After applying the properties, the Grid is displayed as follows.
Figure 1: No summary row for value 0
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