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It is exactly same as sorting, except that the function names are different. Call SetFilter() instead of SetSort() and Filter() instead of Sort().
// Object: cb_filter in w_product_master window.
// Event: Clicked
String Dummy
SetNull( Dummy)
dw_product.SetFilter( Dummy)
dw_product.Filter()
The following dialog box is for the filtering criteria.
After filtering the data to see the unfiltered data again, click on the "Filter" button and remove the filter expression.
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