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ColumnResizer

The ColumnResizer extension can be used to add column resizing functionality (accessible via mouse or touch drag).

require([
    'dojo/_base/declare',
    'dgrid/OnDemandGrid',
    'dgrid/extensions/ColumnResizer'
], function (declare, OnDemandGrid, ColumnResizer) {
    var grid = new (declare([ OnDemandGrid, ColumnResizer ]))({
        columns: {
            col1: {
                label: 'Column1',
                resizable: false
            },
            col2: 'Column 2',
            col3: 'Column 3'
        }
    }, 'grid');
    // ...
});

APIs

The ColumnResizer extension supports the following additional instance properties.

Property Summary

Property Description
adjustLastColumn If true (the default), adjusts the last column's width to "auto" at times where the browser would otherwise stretch all columns to span the grid.
minWidth Minimum width of each column in the grid, in px; default is 40.

Method Summary

Method Description
resizeColumnWidth(columnId, width) Resizes the width of the column with id columnId to be width pixels wide.

Additional Column Definition Properties

The ColumnResizer extension supports the following additional column definition properties.

Property Description
resizable If false, prevents the given column from being resized; default is true.
width Optional number specifying an initial width (in pixels) for the column. This is offered as a convenience for dynamically restoring persisted column widths; in most cases, column styling should still be done separately via CSS.

Events

The ColumnResizer extension will emit adgrid-columnresize event when a column is resized, which includes the following properties:

  • grid: The Grid instance in which this event occurred
  • columnId: The ID of the resized column, which can be used to retrieve the column from grid.columns
  • width: The new width of the column
  • parentType: If the event was triggered by user interaction, this property indicates what type of event originally triggered the event

The dgrid-columnresize event is cancelable; if canceled, the prior size of the column will be preserved.