sets the minimum column width (works only for manual resizing)
| width | number | the minimum column width, can be set for the specified column, or as a comma-separated list for all columns |
| ind | number | the index of a column |
//set the min width of the first column
mygrid.setColumnMinWidth(50,0);
//set columns min widths
mygrid.setColumnMinWidth("50,100,100,150,200,100,150");