DataGrid issues

Hi everybody,
I have a databrid composed of 2 columns and variable rows, depending on the data from a sql query.

I have 2 issues:
1) I'm not able to set columns width as unresizable
2) Is it possible to show the values of a selected row in another area that is not the datagrid?

I hope you can help me

Thanks

1)

obj.setColumnResizable(false, colIndex);

2)

obj.onCurrentRowChanged = function(i){
var text = this.getCellText(0, i); // first cell in the current row
alert(text);
}