Как отфильтровать datagridview от другого datagridview C#
I am looking for a way to filter a Datagridview to another Datagridview and by using a reference number in the first column and searching for a sum of the values of this reference number in another column Datagridview 1 For datagridview 1 in doesn't have any data table or database just get data from some text boxes
Что я уже пробовал:
can someone help me..? thanks. sorry for my bad english.