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Hi Tech Support

I have a CExtGridWnd with a bunch of columns containing values, I would like to have a row above in the grid where I could have a single column span 4 columns. This would allow me to have a row where I could set titles and a row below with extra sub columns.

=====================================
| Address | Gender | <-----header line 1
| city | state | zip code| <-----header line 2
=====================================
| AB | BC | CD | Male | <-----first row
| GH | IJ | KL | Female | <-----second row
=====================================

Is this possible to do in a CExtGridWnd or maybe possible in another type of grid window?

This would be a great feature to have so you could have a column that contains a person’s address and have the address broken down in the next row into street, city, etc. Allowing the entire address column to be hidden or displayed instead of having to manage a bunch of sub columns independently .

I hope I have explained this well enough. If not I can respond and clarify. (It’s possible to do this in Excel and Word)

Thank you tech support for all your help in the past,
Darren

Thank you for a quick response.

I think your solution for expanding a column overtop of the next column will work.

Is there a way to give a grid two header rows? I have tried adding a second row but I crash when I try to get the second row’s first cell as a CExtGridCellHeader.

Thanks again!

The CExtGridWnd and CExtTreeGridWnd classes support multiple header rows and columns. You should invoke the CExtGridWnd::OuterRowCountTopSet(), CExtGridWnd::OuterRowCountBottomSet(), CExtGridWnd::OuterColumnCountLeftSet() and CExtGridWnd::OuterColumnCountRightSet() methods to specify the desired number of header rows/columns. The CExtGridWnd::GridCellGet() and CExtTreeGridWnd::ItemGetCell () methods allow you to instantiate grid cells in any area of the grid window. The CExtReportGridWnd class does not support multiple headers

OuterRowCountTopSet( 2 ); will add 2 header rows.

After that you can get the first cell of the second header row with
CExtGridCellHeader * pCell =
    STATIC_DOWNCAST(
        CExtGridCellHeader,
        m_wndGrid.GridCellGetOuterAtTop(
            0L,
            1L,
            RUNTIME_CLASS(CExtGridCellHeader)
            )
        );

This feature is not implemented yet but it is possible to change the location of grid cells to emulate span cells like it is demonstrated in this test project.