Hi,
I'm using the gridview and sometimes get quite a lot of rows, like about 40.000 records.
there are about 18 columns and some need formatting based on the value in the cells.
this works fine either through the conditinal formatting or in the rowformatting/cellformatting event as described in some of your posts and tutorials.
so far so good.
However, two cells need some more action and I'm just wonderingwy the rowfomatting event is always fired, when you scroll or get the focus in the grid etc. Seems a little too much.
Shouldn't those events be fired when the value changes or is there an event which only fires when the value changed or when the value is being written in the cell? Like a rowcreated event?
Thanks
I'm using the gridview and sometimes get quite a lot of rows, like about 40.000 records.
there are about 18 columns and some need formatting based on the value in the cells.
this works fine either through the conditinal formatting or in the rowformatting/cellformatting event as described in some of your posts and tutorials.
so far so good.
However, two cells need some more action and I'm just wonderingwy the rowfomatting event is always fired, when you scroll or get the focus in the grid etc. Seems a little too much.
Shouldn't those events be fired when the value changes or is there an event which only fires when the value changed or when the value is being written in the cell? Like a rowcreated event?
Thanks
2 Answers, 1 is accepted
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Richard Slade
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answered on 14 Sep 2010, 03:39 PM
Hi,
I may be wrong, but I think that the rowformatting event is fired because when you scroll through the grid the new grid re-uses cells/rows and places the data into them, which gives the grid it's fast scrolling support.
I may be wrong, but I think that the rowformatting event is fired because when you scroll through the grid the new grid re-uses cells/rows and places the data into them, which gives the grid it's fast scrolling support.
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Robert
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answered on 14 Sep 2010, 10:52 PM
Richard is correct about this. As you are scrolling through the grid, it maintains a list of rows/cells which it reuses and repopulates with data as you scroll through the grid. In doing so this increases performance and reduces the memory footprint of the RadGridView. The various formatting events allow you to style these rows as the data within them changes.