Clear a TStringGrid (Views: 710)
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Problem/Question/Abstract: I have a form with a stringgrid on it. I use the grid to display some data regarding a certain part. How do I clear the grid, that still holds data from the first display, before I display data of a different part? Answer: You have to loop over the rows or cols or even cells (depends on how the grid is layed out): with StringGrid1 do begin perform(WM_SETREDRAW, 0, 0); {block visual updates} try for i := fixedRows to Rowcount - 1 do Rows[i].Clear; finally perform(WM_SETREDRAW, 1, 0); invalidate; end; end; Since this wipes complete rows it would not be suitable if you have a fixed column on the left that should be preserved, for example. |