dcl-Grid-setCelltext with no result ...

With the open dialogue I tried this code:

Befehl: (dcl-Grid-GetCellStyle xdata_selector/xdata_selector/grid_single 1 1)

-1



Befehl: (dcl-Grid-SetCellStyle xdata_selector/xdata_selector/grid_single 1 1 6)

T



Befehl: (dcl-Grid-GetCellStyle xdata_selector/xdata_selector/grid_single 1 1)

6



Befehl: (dcl-Grid-setCelltext xdata_selector/xdata_selector/grid_single 1 1 "a")

nil



Befehl: (dcl-Grid-getCelltext xdata_selector/xdata_selector/grid_single 1 1)

""

I don't know why I can not set a text to my grid...
Any ideas?

I found it ...

The Grid was totally empty, and I have to use some "ADD" commands to build the table before I can "SET" something ..