I have a dialog with a CComboBox in the DropList style. I want it to call my function (e.g. LoadData()) when:
user clicks an item in the drop list, or
an item in the drop list is highlighted (either by mouse hover or keyboard), and user presses enter
but NOT when the user is still typing text in #2.
Calling LoadData() in the ON_CBN_SELCHANGE handler works fine for #1, but for #2 this event fires on every keystroke instead of only on enter. In other words, if I have combobox items:
1
12
123
and I type 12, it will trigger ON_CBN_SELCHANGE once for 1, once for 12 ... but really I'm trying to type 123, so I don't want those first 2 keystrokes to result in LoadData() calls.
What's the correct way to implement this?
Further to the comments in your question, here is the answer:
Right-click the control and select Add Event Handler:
Select the dialog class, choose the message CBN_SELENDOK (and adjust the method name if you want to):
This will add default event handler for you:
void CMFCApplication1Dlg::OnCbnSelendokCombo1()
{
// TODO: Add your control notification handler code here
}
Now you can proceed as required.
Alternative
Select the control and then look at the properties pane. Click on Control Events:
Locate CBN_SELENDOK in the list, click the drop-down arrow and select the option to add the handler:
Related
My goal is to Programmatically select items from the List of the combo box, but without updating the edit control. The same can be achieved with the mouse. E.g. when you drop down and hover an item from the list, that item is highlited. And that is all. If you want to select in it the combo box (e.g. move it to the edit control) - you must click on the LisBox.
I tried with CB_SELECTSTRING. But it automatically updates the ComboBox edit control with the selected text which is not what I want. I want to do this using raw Win32 or VB6
Thanks
There is a big difference between highlighting an item in the drop-down list and actually selecting an item to make it active. CB_SELECTSTRING selects an item, as its name implies. But there is no official ComboBox API to highlight an item, though.
However, you can display the drop-down list manually (CB_SHOWDROPDOWN), and either:
move the mouse over the desired item so the list can perform hot-tracking logic.
manipulate the list directly. Use CB_GETCOMBOBOXINFO or GetComboBoxInfo() to get the list's HWND, and then send LB_SETCURSEL to it.
In my code I have bound the defaultProperty of a button to some other properties like so:
BooleanBinding isAddResourceButtonDefault
= resourceNameTextField.focusedProperty().or(
resourceTypeComboBox.focusedProperty()).or(
divisibleResourceCheckbox.focusedProperty().or(
maxInstancesTextField.focusedProperty()).or(
addResourceButton.focusedProperty()));
addResourceButton.defaultButtonProperty().bind(isAddResourceButtonDefault);
The problem is that the addResourceButton won't fire absolutely any events on pushing Enter - neither OnAction, nor OnKeyPressed.
The default property gets set just fine - I double checked (using output and ScenicView). ScenicView also doesn't show any events being fired upon hitting keys. Any ideas?
I believe TextFields (and other TextInputControls) process and consume key events that occur on them. So pressing Enter on a text field will not fire an action event on the default button (because the key event never reaches the Scene).
If you are just trying to fire the button's action event handler when enter is pressed in one of the text fields, just add the same event handler to the text fields. E.g.
EventHandler<ActionEvent> addResourceHandler = event -> {
System.out.println("Add resource");
// ...
};
addResourceButton.setOnAction(addResourceHandler);
resourceNameTextField.setOnAction(addResourceHandler);
maxInstancesTextField.setOnAction(addResourceHandler);
I have 3 radio button A ,B, C
and I have 3 tab page in the canvas A, B,C.
My Requirement is if user select radio A and press Submit button then tab A Should get activated and my cursor got to tab A.
If it is enabled and visible then you can use the following commands:
go_item('blockname.itemname');
or
go_block('blockname');
If you don't need to go to a specific item then use the second command go_block.
To enable a tab page:
set_tab_page_property('TAB_PAGE_NAME',enabled,property_true);
If the tab page was not visible you should make it visible first:
set_tab_page_property('TAB_PAGE_NAME',visible,property_true);
In order to navigate to that tab page, the easiest way to accomplish that is by going to a navigable item that is in that tab page:
go_item('ITEM_IN_THE_TAB_PAGE');
First you have to set the tab page as top most using set_tab_page_property(top_most_tab_page,'tab_page_name'). after that use go_item('block_name.item_name');
here is the easiest way to do this
In the following code, I supposed that the radio button name is: RADIO_BTN and it's value is 'A'
open submit button properties and set 'keyboard navigation'= No and 'mouse navigation'= No
on tab A create a dummy item (not database item) and name it A, with width=0 and height=0 so the user will not see it, or use a real item name on tab A
open trigger when_button_pressed on submit button and write the following code.
IF :RADIO_BTN = 'A' THEN /*replace this with your radio_btn name and value */
GO_ITEM('A'); /*go to dummy item in tab A or to real item in tab A */
END IF;
Enter does not select item in select element in inline edit and blocks double click.
Steps to reproduce:
Open
http://trirand.com/blog/jqgrid/jqgrid.html
in IE9
Select
Row Editing (new)
Input types
Double click in first row "Desktop computer"
to start inline edit
Click in "Ship via" column in first row FedEx fiel to open dropdown.
Press Down arrow key to select Intime
Press Enter
Observed:
FedEx appears in Ship Via column
Double click in this row not more starts inline edit
Expected:
Intime should appear
Double click should put row in inline edit mode again.
How to fix ?
I suggest to solve the problem like in the change. The idea is very easy. Is one change focus many required finalization actions can be done in the current control. For example in case of <select> the 'change' event will be fired, onfocusout will be called and popup menus (context menu or datepicker) will be closed and so on.
SO I suggest to add the line
$(ta).closest("tr.jqgrow").focus();
inside of 'keydown' event handler after the line. The results you can see on the demo.
I have called a leave event for a a text box and in it called another buttons event named Retrieve button. so now I just want to check in this retrieve button event weather the text box's leave event is called or not?
When you call the retrieve button event from the text box leave (blur) event you could simply add a flag into the eventArgs that you can check in the retrieve button. This flag would only be set when you implicitly call the retrieve button even from the text box leave event.
This would mean that if the retrieve event is called from other places the flag would not be set so you could tell that the call definitely came from the button leave event.