{"action":"opened","issue":{"url":"https://api.github.com/repos/MahApps/MahApps.Metro/issues/2113","labels_url":"https://api.github.com/repos/MahApps/MahApps.Metro/issues/2113/labels{/name}","comments_url":"https://api.github.com/repos/MahApps/MahApps.Metro/issues/2113/comments","events_url":"https://api.github.com/repos/MahApps/MahApps.Metro/issues/2113/events","html_url":"https://github.com/MahApps/MahApps.Metro/issues/2113","id":104931547,"number":2113,"title":"Expander in DataGrid shows VerticalScrollBar","user":{"login":"alexiej","id":12593751,"avatar_url":"https://avatars.githubusercontent.com/u/12593751?v=3","gravatar_id":"","url":"https://api.github.com/users/alexiej","html_url":"https://github.com/alexiej","followers_url":"https://api.github.com/users/alexiej/followers","following_url":"https://api.github.com/users/alexiej/following{/other_user}","gists_url":"https://api.github.com/users/alexiej/gists{/gist_id}","starred_url":"https://api.github.com/users/alexiej/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alexiej/subscriptions","organizations_url":"https://api.github.com/users/alexiej/orgs","repos_url":"https://api.github.com/users/alexiej/repos","events_url":"https://api.github.com/users/alexiej/events{/privacy}","received_events_url":"https://api.github.com/users/alexiej/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-09-04T17:15:16Z","updated_at":"2015-09-04T17:15:16Z","closed_at":null,"body":"Hi,\r\n\r\nI have below DataGrid with Expander.\r\n\r\n                       <DataGrid.GroupStyle>\r\n                        <GroupStyle>\r\n                            <GroupStyle.HeaderTemplate>\r\n                                <DataTemplate>\r\n                                    <StackPanel>\r\n                                        <TextBlock FontWeight=\"Bold\" Text=\"{Binding Name}\" />\r\n                                    </StackPanel>\r\n                                </DataTemplate>\r\n                            </GroupStyle.HeaderTemplate>\r\n                            <GroupStyle.ContainerStyle>\r\n                                <Style TargetType=\"{x:Type GroupItem}\">\r\n                                    <Setter Property=\"Template\">\r\n                                        <Setter.Value>\r\n                                            <ControlTemplate TargetType=\"{x:Type GroupItem}\">\r\n\r\n                                                <Expander IsExpanded=\"True\">\r\n                                                    <Expander.Header>\r\n                                                        <StackPanel Orientation=\"Horizontal\">\r\n                                                            <TextBlock FontWeight=\"Bold\" Text=\"{Binding Name}\" />\r\n                                                        </StackPanel>\r\n                                                    </Expander.Header>\r\n                                                    <ItemsPresenter />\r\n                                                </Expander>\r\n                                            </ControlTemplate>\r\n                                        </Setter.Value>\r\n                                    </Setter>\r\n                                </Style>\r\n                            </GroupStyle.ContainerStyle>\r\n                        </GroupStyle>\r\n                    </DataGrid.GroupStyle>\r\n\r\nAnd Columns with dataGrid with one column with width=\"*\".\r\n\r\n     <DataGridTemplateColumn Width=\"*\"/>\r\n\r\n\r\n In this situation this should take left space.\r\nThis works fine without expander. But with epxander it always set size for the column too wide. I need to manualy change size for each column in DataGrid. \r\n\r\n\r\n![2015-09-04_19-09-30](https://cloud.githubusercontent.com/assets/12593751/9689819/dd203e7e-5338-11e5-98a6-9ef4a98e07e0.png)\r\n\r\nIs it possibility to change size for the column autamitcly including Expander.\r\n\r\n"}}