expand

问题 I'm spending a lot of time manually expanding deeply-nested folders in tree views like the Project Explorer and the File Search result tree. Is there a keyboard shortcut or menu command to expand all folders? 回答1: In "File Seach Result", right click on the top level folder, there is an "expand all" menu entry. In the project view, I didn't find the feature. 回答2: In Windows: Expand all all in project explorer is Shift + Numpad * (multiplty), as mentioned before. Collapse all in project

问题 Is it possible to change the Expand and Collapse Images of a JavaFX 2.2 TreeVIew? Change this image, To an image like this (with +/-), 回答1: Sure, this is possible with a little bit of css. The CSS looks like this: .tree-cell .tree-disclosure-node .arrow { -fx-shape: null; -fx-background-color: null; -fx-background-image: url("plus-arrow.png"); } .tree-cell:expanded .tree-disclosure-node .arrow { -fx-shape: null; -fx-background-color: null; -fx-background-image: url("minus-arrow.png"); } lg

问题 I am using Apache POI API to generate excel spreadsheet to output some data. The problem I am facing is when the spreadsheet is created and opened, columns are not expanded so that some long text like Date formatted text is not showing up on first glance. I could just double click the column border in excel to expand or drag the border to adjust the column width but there could be 20+ columns and there is no way I want to do that manually every time I open the spreadsheet :( I found out

问题 Is it possible to have a nice slide up/down effect when expanding/collapsing an item of a ExpandableListView? If yes, how? Thanks in advance. 回答1: So This is a complete duplicate of this. In short, I used a regular list, made my own dropdown view, used a custom drop down animation and voila success (look at link for more description). Edit: Step by step guide: First I create the xml list_row: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk

问题 Can anyone point to solution how to make expand animation of Description TextView in Android Market animation? There are TextView wrapped into FrameLayout which expands after clicking on 'More' label. 回答1: Solution: private static int measureViewHeight( View view2Expand, View view2Measure ) { try { Method m = view2Measure.getClass().getDeclaredMethod("onMeasure", int.class, int.class); m.setAccessible(true); m.invoke(view2Measure, MeasureSpec.makeMeasureSpec(view2Expand.getWidth(),

问题 I'm just trying to find a way to control the expand / collapse of the TreeView nodes through the object they're bound to. The object has an IsExpanded property, and I want to use that to show the TreeView node itself expanded or collapsed based on that property. Here's my code: C#: public partial class Window2 : Window { public Window2() { InitializeComponent(); this.DataContext = new List<Parent>() { Base.GetParent("Parent 1"), Base.GetParent("Parent 2") }; } } public class Base { public

问题 I'm developing an application where the user presses the "Search" icon in the ActionBar and a SearchView is made visible at the top of the screen. My problem is that the SearchView is not in focus nor expanded so the user has to press the search button on the Searchview to make it expand and bring out the keyboard. How should this be solved? 回答1: To make the SearchView expanded by default, call setIconifiedByDefault(false) on it when you initialise it (e.g. in onCreateOptionsMenu(..) or

问题 I already read/tried these posts but that didn't help: Display multiple lines within a Jlist cell How to get multiline for a Jlist text? Problem displaying components of JList What I need is a ListCellRenderer which returns a panel with an icon on the left and a text of dynamic length on the right (like in any forum: on the left a user avatar, on the right the post text). The texts are NOT known to me, so I can't set a fixed cell height. Further, the text length differs from list cell to list

问题 I have a data frame like this in pandas: column1 column2 [a,b,c] 1 [d,e,f] 2 [g,h,i] 3 Expected output: column1 column2 a 1 b 1 c 1 d 2 e 2 f 2 g 3 h 3 i 3 How to process this data ? 回答1: You can create DataFrame by its constructor and stack: df2 = pd.DataFrame(df.column1.tolist(), index=df.column2) .stack() .reset_index(level=1, drop=True) .reset_index(name='column1')[['column1','column2']] print (df2) column1 column2 0 a 1 1 b 1 2 c 1 3 d 2 4 e 2 5 f 2 6 g 3 7 h 3 8 i 3 If need change

问题 I want to expand/collapse the items of my recyclerView in order to show more info. I want to achieve the same effect of the SlideExpandableListView. Basically in my viewHolder I have a view that is not visible and I want to do a smooth expand/collapse animation rather than set the visibility to VISIBLE/GONE only. I only need an item to be expanded at a time and it would be cool to have some elevation to show that the item is selected. It is the same effect of the new Android recent calls