onBeforeColumnDrag

fires the moment you start dragging the column from its source position

function onBeforeColumnDrag(
    // the source column id
    sourceId: string,
    // object      the native event object
    event: Event
): void

Example

datagrid1.attachEvent("onBeforeColumnDrag", function(sourceId, event){
  // some code
  return true;
});

Details

The event is blockable. Returning false will prevent column dragging.

See also

Articles

• Drag-and-drop with DataGrid

API

• onBeforeColumnDrop
• onAfterColumnDrop