or

rgv.TableElement.TableHeaderHeight = 200;private void RBCMultiColumnComboBox_TextChanged(object sender, EventArgs e){ if (!this.IsDesignMode) if (string.IsNullOrEmpty(this.Text) && this.AutoFilter) { this.SelectedItem = null; this.SelectedValue = null; this.EditorControl.FilterDescriptors.Clear(); this.NullText = string.Empty; FilterDescriptor filterDescriptor = new FilterDescriptor(this.DisplayMember, FilterOperator.Contains, string.Empty); this.EditorControl.FilterDescriptors.Add(filterDescriptor); }}