Our ComponentOne » Topic: how to erase the lines on cols[0] & rows[0] after scroll http://our.componentone.com/groups/topic/how-to-erase-the-lines-on-cols0-rows0-after-scroll/feed/feed/ Fri, 24 May 2013 00:25:38 +0000 http://bbpress.org/?v=2.2.4 http://our.componentone.com/groups/topic/how-to-erase-the-lines-on-cols0-rows0-after-scroll/#post-97673 <![CDATA[how to erase the lines on cols[0] & rows[0] after scroll]]> http://our.componentone.com/groups/topic/how-to-erase-the-lines-on-cols0-rows0-after-scroll/#post-97673 Tue, 29 May 2012 09:33:47 +0000 26334980 After scroll, the lines still repaint on cols[0] & rows[0]
how to invalidate repaint in these areas?

Help me modify the code

Thanks
Kerry

]]> http://our.componentone.com/groups/topic/how-to-erase-the-lines-on-cols0-rows0-after-scroll/#post-217632 <![CDATA[Re: how to erase the lines on cols[0] & rows[0] after scroll]]> http://our.componentone.com/groups/topic/how-to-erase-the-lines-on-cols0-rows0-after-scroll/#post-217632 Fri, 01 Jun 2012 07:46:40 +0000 Wolfgang Knauf Hi,

before drawing the line, check that the coordinates are not in the fixed area.

For not drawing in the fixed row, this check is needed:

                if (y1 > _flex.Rows[0].HeightDisplay)
                {
                  formGraphics.DrawLine(myPen, x1, y1, x2, y2); //col1,row1,col2,row2  
                }

Same must be done for the fixed col.

Probably you will need more work if you want to clip the line instead of not drawing it at all. This task is up to you ;-)

Best regards

Wolfgang

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