Hello. I`m using DropDownEditorButton to create a dropDown cell in a grid, containing list if checkboxes. 

1) How can I auto adjust size of DropDown container, so with of container was equals to with of cell?

2) I`ve got a cell with a dropdown, but when user clicks on a dropdown button - nothing happened. Only after user`s doubleclick on a cell (to switch it in an edit mode), user can use a dropdown button. How can I bypass this?

My code is:

 UltraListView listView = new UltraListView();

                listView.Items.AddRange(items.ToArray());

                listView.ItemSettings.AllowEdit = DefaultableBoolean.True;

                listView.View = UltraListViewStyle.List;

                listView.ViewSettingsList.CheckBoxStyle = CheckBoxStyle.CheckBox;

                listView.ItemCheckStateChanged += ReportCheckChanged;

                listView.ViewSettingsList.MultiColumn = false;

                listView.ViewSettingsList.ImageSize = System.Drawing.Size.Empty;

                DropDownEditorButton button = new DropDownEditorButton

                {

                    Control = listView

                };

                reportsTextEditor_ = new UltraTextEditor {ReadOnly = true};

                reportsTextEditor_.ButtonsRight.Add(button);

                valueCell.EditorControl = reportsTextEditor_;

                valueCell.Style = ColumnStyle.Edit;