out of range error

[Per Millard]

I have a problem when I try to access my cellstyleinfo. When I try to access them using
ex. Grid[0,2] I get an out of range in colindex exception although the number of rows and cols far exceed 0 and 2. Other examples seems to work just fine, so it must have something to do with my grid setup.

Any ideas ?

Regards

Per Millard
Senior Software Architect
PBJ Consult A/S

[Administrator]

Are you using a GridControl, or a GridDataBoundGrid?

If you are using a GridDataBoundGrid, then use the GridBoundColumn[col].HeaderText property to get/set the header text.

If you have dynamically changed the row/column count of a GridControl at runtime, also make sure you call grid.ResetVolatileData.

If you cannot spot something, if you can post a little sample project showing the problem, we should be able to spot something here.

[Per Millard]

Hi Clay

It seems that I manually set RowCount and ColCount to 0 at grid creation and subsequently supplied them in the Query event handlers. Not resetting the values when creating the grid seemed to eliminate the error. However, I still have a problem changing the style properties outside the QueryGridInfoHandler event handler. No matter what I try to change, be it cellstyle, cellvalue etc., the changes are just ignored. Again, this works fine in a simple example, but in my applikation, the grid ignores ex.
Grid[0,2].CellType="Static"

Any ideas ?

> Are you using a GridControl, or a GridDataBoundGrid?
>
> If you are using a GridDataBoundGrid, then use the GridBoundColumn[col].HeaderText property to get/set the header text.
>
> If you have dynamically changed the row/column count of a GridControl at runtime, also make sure you call grid.ResetVolatileData.
>
> If you cannot spot something, if you can post a little sample project showing the problem, we should be able to spot something here.

[Administrator]

You mentioned QueryCellInfo. Do you have code like

if(e.ColIndex > 0 && e.RowIndex > 0)
{//

to prevent trying to set values when e.RowIndex == 0? You should if you want the grid to provide these values from its store.

Also, are you handling SaveCellInfo? If so, you should not be setting e.Handled = true when e.RowIndex == 0. If you do this, it will prevent the grid from saving the changes for row 0 to its data store.

If you are dynamically providing the rowcount through QueryRowCount for a virtual grid, you can also try setting grid.Model.Data.RowCount = 1 so the grid will allocate the storage for this header row.