minEditorWidth

This property is used for only combo colomn.
minEditorWidth is min width of combo editor.

This property is used for advanced templating combo.
Templating combos is one the most complex issue.

Example

columns: [{
  index: 'country',
  title: 'Country',
  type: 'combo',
  displayKey: 'text',
  valueKey: 'text',
  minEditorWidth: 150,
  minListWidth: 150,
  leftTpl: '<span class="flag {cls}"></span> l ',
  leftWidth: 35,
  listItemTpl: '<span class="flag {cls}"></span> <span class="country">{text}</span>',
  render: function(o){
	var cls = 'flag-' + coutries[o.value];
	
	o.value = '<span class="flag ' + cls + '"></span> <span class="country">' + o.value + '</span>';
	return o;
  },
  data: {
	proxy: {
	  url: 'countries.json'
	}
  }
},{
...

Default

auto