listview

问题 How can I change the style of the combobox's listview? Here is part of the code so far: style = ttk.Style() style.configure("BW.TLabel", foreground="black", background="#20252b", insertbackground="white", fieldbackground= 'blue') optmn = ttk.Combobox(self, style="BW.TLabel") optmn.place(x=140, y=200, width=150, height=25) How can I access the style of the listview of the combobox? Sample Image: 回答1: Found it! the way to change the BG of the listview of the combobox is: import ttk import

问题 I am binding Checkbox using Custom ListView . Now, at the last, I want all the values of checked CheckBox . How to get this ? I want to know that how can I get values using my code. ListView itemOnClickListener is not firing here. My code : Map<String, String> m = null; for (int i = 0; i < lList.size(); i++) { objSubCatData = lList.get(i); lstSubCatId.add(objSubCatData.getSubCatId()); m = new HashMap<String, String>(); m.put("SubCatName", objSubCatData.getSubCatName()); aaSubCategory.add(m);

问题 I'm trying to create a context menu, so that when you right click the ListViewItem , the user is presented with a list of options. The problem is; I can't get the refrenced item linked to the ListViewItem in the Click event. I think it may be because I'm putting the ContextMenu in the wrong place in my XAML. I have been searching and playing around for ages, but think it could have something to do with the DataTemplate I'm using where the examples weren't in templates. <ListView Margin="0"

问题 I have a table with checkboxes and I would like to be able to delete or edit a specific field value for all the selected rows in the table. Here's an example table that would be awesome to recreate but I have not found examples anywhere how this may work in the view and template. https://examples.bootstrap-table.com/# My current view, which is working with a table. Where can I start to make the leap from a basic table to an interactive one like in the example above? Views.py class EntryList

问题 I have a comment page for each post in my app that I use streambuilder to fetch the comments from Firebase database. For each comment, I am displaying user's image and their comment. To get the user's image, I need to use a futurebuilder to find the user in the userData document and then grab the image url and display it (users can change their image profile, name, etc. at any time and I have to grab the updated one from the userData document every time I want to display their name or image

问题 I want to achieve something like in screenshot below, So far I am able to display a list of most recent message with message count, But when I'm trying to get the name of person through "address", I'm getting error " Column address not found ". Please help me displaying "contact name with their image". @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.MyChatFragment, container, false); // Inflate

问题 I have variable a in a loop, it gives a different string each time I want to add that string in ListView , without overwriting it, i searched for append ListView , but didn't find anything, i always got the last item which is the last a value in the ListView I think I need to use HashMap or foreach, but i don't know how in the image, each line is string a variable, so the variable will change every time 158 word here's my code ArrayList<String> list = new ArrayList<String>(); ArrayAdapter

问题 On my fragment layout I have a Nested Scroll view with two relative layout inside, top and bottom, on the bottom I have a listview with about twenty elements, but if I set the height of the listview with wrap_content, only one line is shown, whereas if I set the height to 1000dp, for example, all the lines are shown, I wouldn't want to fix the height in a static way but I'd rather use wrap_content, what can I do? <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

问题 I am working on Winforms where I am saving path of image in database, and then retrieving the path and giving it to Imagelist. The images from Image list are used in ImageView. But the image is not displaying, its path is correctly displayed but image is not showing. public void yourvideos(string user, ImageList imageList, ListView lv, Label l,TextBox s) { cmd = new SqlCommand("select Title,Thumbnail from RecipeInfo where Username=@username", con); cmd.Parameters.AddWithValue("@username",

问题 I am trying to put color and bold up on a word that matches the word from a sentence in ArrayList items/value. what I have done so far is as below... so I have a String variable called filter "Hello" now I want to iterate through ArrayList itemList and find "Hello" from ArrayList items and make it bold and blue. String filter = "Hello"; String itemValue = "I just want to say Hello world! Hello"; itemList = new ArrayList<String>(); for(int i = 0; i<10; i++) { itemList.add("I just want to say