Determined the number of the first selected column in the active selected row.
<oBrowser>:SelectionFirstColumn() Æ iColumn
|iColumn||The number of the first selected column. If no column is selected, the value 0 is returned. The column number refers to the list of the opened columns (see also bBrowser:ColumnOpenList).|
bBrowser:SelectionFirstColumn() can be used only in combination with the methods
determined for the selected row the first selected column.
By calling the method bBrowser:SelectionNextColumn() afterwards the next selected column in the selected row can be determined.