I have a dialog with a CListBox .I have to add 3 Columns in this list box.
Is there any way to have several different columns in CListBox ?
Or Can CListCtrl help in this regard?
Listbox has list of items in 1 column, a list-control can have zero or more columns.
Natively, listbox does not have icon attached to it, list control has.
List control has "header control" on top of it, which can be used to arrange and/or sort the items in columns.
List Control (also know as report control) can have 4 or more view types (depending on OS) - icon, small icon, details/report, list and thumbnail.
The windows explorer file view (right side) is list control, fonts in Fonts dialog box is listbox.
Source : http://forums.codeguru.com/showthread.php?358739-CListBox-and-CListCtrl.
use CListCtrl::InsertColumn to add new column.
here is the reference
here is a example
Related
I am working on WinUI 3 desktop application in C++. I was trying to achieve an experience where when we scroll ListView, we will incrementally add rows to the end of the listviews dropdown during runtime.
For example, I might have 100,000 results to fit in a list view, I only want to show a limited number of contents in the list view, then as the user scrolls I'll add more contents to the list view.
I was not able to get any scroll-based events in ListView directly, so I extracted the ScrollViewer from the list view and handled the ViewChanged event. This event was fired when the scroll happened. But I was not able to get how many rows were scrolled or currently which row is been scrolled.
I want to get how many rows are scrolled so that I can insert enough rows to the end of the ListViews Item Source. It would be of great help if you could help me with this.
Thank You
I couldn't think of a coherent search term for my problem so please forgive me if this has been asked before.
I have 24 combo boxes sitting on a panel control, displayed in 4 rows of 6.
After the user defines the value for each combo and hits the "go" button, I add all combo boxes to list so I can use the values in another section of my program.
The problem is that the order the comboboxes are added to the list is messed up, compared to their visual layout on the panel, and I would like to define the order. Currently, it adds the 9th combobox to the list first then the 20th, 2nd, 16th etc etc.
I tried TabIndex but that didnt work.
Before I manually rename and relabel all of the boxes, any other suggestions will be gratefully received.
The controls of your form exist in Controls collection of the container controls, for example when you add a Panel and a Button to a Form and two ComboBox to the Panel, then:
Form.Controls contains button1 and panel1
Panel.Controls contains comboBox1 and comboBox2
Controls are added to the Controls collection, with the same order that you add them to designer. Open designer.cs, look at the end of InitializeComponent to see the order.
You can also see/change the order using Document Outline window.
That said, now it should be obvious that panel1.Controls.OfType<ComboBox>() returns combo boxes with the same order that you see in Document Outline (or based on their z-index, and it doesn't have anything to do with their x/y placements).
You may want to order them based on TabIndex, or any other property that you like:
panel1.Controls.OfType<ComboBox>().OrderBy(x=>x.TabIndex)
Note
In general, if you are going to use those values for a search, instead of relying on the order of values, a much better idea is creating a SearchModel class which has a few properties, the set those properties to the selected value of the corresponding combo box (manually or using databinding) then pass the search model to the other classes.
I'm implementing show/hide column behaviour in a standard C++ Win32 application (no frameworks).
Say we've got 3 columns in a ListView control in Details view. The user has the option to show/hide the last two columns in order to see the extra detail if wanted or hide them to reduce clutter. All works well except that after the columns are deleted and then re-added, the data from the sub-items in those columns doesn't show up again, i.e. the columns are empty.
None of the items themselves have been altered in the meantime - do I lose the sub-item text when I delete the columns or I am missing something to force the columns to redraw the data?
Steps to reproduce:
1) Create a ListView32 control with 3 columns and add a bunch of items (and text to each of the items' sub-items). All good.
2) The user clicks "Hide Details", so I use LVM_DELETECOLUMN twice to remove the last two columns and they disappear. All good.
3) The user clicks "Show Details", so I use LVM_INSERTCOLUMN to add the last two columns and the headings appear, but the columns themselves are empty.
As an alternative, setting the column widths to zero is a hack and the user can still grab the re-size column splitter, so it's not a great option.
Many thanks for any suggestions.
Typically one does not store data in GUI. In case of plain listview32 you should add items specifying LPSTR_TEXTCALLBACK instead of real text and then handle LVN_GETDISPINFOW notification supplying (sub)item data. Windows will send this notification for all items. You can force Windows to retrieve data again by sending LVM_UPDATE message.
Setting the column widths is a viable solution. That is the way I do it in my UIs when columns can be shown and hidden dynamically. It works fine.
To prevent the user from resizing "hidden" columns, simply subclass the ListView using SetWindowLongPtr(GWL_WNDPROC) or SetWindowSubclass() to intercept HDN_BEGINTRACK notifications from the ListView's header control:
Notifies a header control's parent window that the user has begun dragging a divider in the control (that is, the user has pressed the left mouse button while the mouse cursor is on a divider in the header control). This notification code is sent in the form of a WM_NOTIFY message.
...
Returns FALSE to allow tracking of the divider, or TRUE to prevent tracking.
I've got several comboboxes which has approx. 40 items in each of them and no matter what I've tried to set in the VS 2013 comboxbox parameter box, it still shows only one item at time. I want to show several items at one time (doesn't matter if there will be vertical scrollbar or not) right now it looks like this
http://imgur.com/qU2UVrL
thank you for possible ideas.
mk
You can change combo-box expansion area directly in dialog editor: http://msdn.microsoft.com/en-us/library/4cta1x1t.aspx
I often use select lists with my projects but when it comes to a huge select list, I couldn't find a solution. I need a easy, plug and play solution for solution will be used in a few places.
When you have a select box or text box to be filled from a model data, I want to show user a text box, right side of text box, there should be a button to choice the value. Upon clicking that button, popup or a modal will be opened and I filter all the records and find my value, upon clicking value, modal or popup closes and I get choosen value to form control.
İmagine you have a text box to choose your customer, and among 2500 customer,
PS:don't suggest autocomplete, don't want to accomplish it.
Why don't you look at something like Chozen plugin http://harvesthq.github.io/chosen/. It allows you to easily search large select lists