I have a CComboBox of type DropList (i.e. it's not editable). What's the easiest way to set the current selection by string?
I know I can use SetCurSel() to set it by index, but I want the function to search through the list-items by string and set it.
You can call FindStringExact() to obtain the index of the string you want to select, then pass that index to SetCurSel():
yourComboBox.SetCurSel(yourComboBox.FindStringExact(0, yourString));
Note that is the string is not found in the combobox, -1 will be passed to SetCurSel(), which will result in any previous selection being cleared. You may want to perform an explicit test if that behavior does not suit you.
Note that Max's answer should be preferred for new developments. However, SelectString() is only supported from Windows Server 2003 onwards, so you may not be able to leverage it, depending on the platforms you want to support.
What about CComboBox::SelectString ?
"Searches for a string in the list box of a combo box, and if the string is found, selects the string in the list box and copies it to the edit control."
https://msdn.microsoft.com/en-us/library/30ft9e54(v=vs.110).aspx
Related
The context
In a wxWidgets (version 3.0.2) C++ application, I am trying to hide the first column of a wxListCtrl.
I did not find a member function to do this so I tried to set the width of the column to 0:
myListCtrl->SetColumnWidth(0, 0);
first argument being the column ID and second one the width in pixels (wxListCtrl documentation).
After running the program, the header of the first column is hidden as I wanted but the data of each row of the first column overlaps the data of each row of the second column (which is not hidden). It is obviously not what I want. The header and the data of the first column should be hidden.
The question
In wxWidgets 3.0.2, is there a way to hide the first column (header and data of each rows) of a wxListCtrl?
I don't believe you can. You have a few options.
Delete the column using DeleteColumn(int columnIndex). You aren't losing any data, just the display of it, so you can always re-insert the column and repopulate it if you need to re-add it. Obviously this could be time consuming if your data is excessively large.
Depending on your application, just don't create the column in the first place. You don't say why you want to hide it, so if you just don't want it, don't add it.
Implement your control as a virtual control which gives your application control over what to display where. The burden of data display management falls to you to do manually but you have a great deal more flexibility. Inherit the class with wxLC_VIRTUAL style and implement OnGetItemText http://docs.wxwidgets.org/3.0/classwx_list_ctrl.html#a92370967f97215e6068326645ee76624
Edit:
To expand on the comment question, how to get the selected item index:
The wxListCtrl is a little weird when it comes to selected items. I'm sure it has to do with needing to support report, icon, etc. different views. When dealing with a multi-column report mode, you might find that you can only select items in the first column. If you are on Windows, it should automatically be set to "Full Row Select" but I don't know about other OSs.
Anyway, here is a utility method that returns the first selected item (note that you can support multi-selection if you want to).
//Get the item currently selected
int ListView::GetItemSelected() const
{
for(int i=0; i<GetItemCount(); ++i)
if (GetItemState(i, wxLIST_STATE_SELECTED) == wxLIST_STATE_SELECTED)
return i;
return -1;
}
If you want (and it makes sense), you can connect the list item selected event.
this->Connect(wxEVT_COMMAND_LIST_ITEM_SELECTED, wxCommandEventHandler(ListView::selected_Changed), NULL, this);
and within that event handler, get the selected item and do what needs doing (depending entirely on your application).
You will note that I'm using a derived class here which just makes things a lot easier but you don't have to. You can connect to something like MyMainForm::sqlResults_selectedChanged or whatever.
There is more than one way to accomplish all this and you can also find some good suggestions and help here: https://wiki.wxwidgets.org/WxListCtrl
Well I'm facing an issue here:
I use Selenium to automate test on my application, and I use the following code to fill a textbox:
driver.find_element_by_id("form_widget_serial_number").send_keys("example", u'\u0009')
All the textboxes have the same id (form_widget_serial_number) so it's impossible to select a specific textbox by using selection by id (the code above selects the first textbox and u'\u0009' changes the cursor position to the next textbox).
Anyway, how can I send values to the "current" textbox without using find_element_by_id or another selector, given that the cursor is in the current textbox?
There are several selectors available to you - Xpath and css in particular are very powerful.
Xpath can even select by the text of an element and then access its second sibling1:
elem = driver.find_element(:xpath, "//div[contains(text(), 'match this text')]/following-sibling::*[2]")
If you need to find the current element that has focus:
focused_elem = driver.switch_to.active_element
And then to find the next one:
elem_sibling = focused_elem.find_element(:xpath, "following-sibling::*")
Using this example, you could easily traverse any sequence of sequential elements, which would appear to solve your problem.
Take a close look at the structure of the page and then see how you would navigate to the element you need from a reference you can get to. There is probably an Xpath or css selector that can make the traversal across the document.
1 FYI, I'm using an old version of Selenium in Ruby, in case your version's syntax is different
My approach would be:
Get a list of all contemplable elements by the known id
Loop over them until you find a focused element
Use send_keys to write into that element
To get the focused element something like
get_element_index('dom=document.activeElement')
might work. See this question for more information.
Edit: If the list you get from 1. is accidently sorted properly the index of an element in this list might even represent the number of u'\u0009' you have to send to reach that specific element.
Use ActionChains utility to do that. Use following code:
from selenium.webdriver.common.action_chains import ActionChains
ActionChains(driver).send_keys("Hello").perform()
I have a situation where I'm using the IEditorDataFilter interface within a custom UltraGrid editor control to automatically map values from a bound data source when they're displayed in the grid cells. In this case it's converting guid-based key values into user-friendly values, and it works well by displaying what I need in the cell, but retaining the GUID values as the 'value' behind the scenes.
My issue is what happens when I enable the built-in group by functionality and the user groups by a column using my editor. In that case the group by headers default to using the cell's value, which is the guid in my case, so I end up with headers like this:
Column A: 7F720CE8-123A-4A5D-95A7-6DC6EFFE5009 (10 items)
What I really want is the cell's display value to be used instead so it's something like this:
Column A: Item 1 (10 items)
What I've tried so far
Infragistics provides a couple mechanisms for modifying what's shown in group by rows:
GroupByRowDescriptionMask property of the grid (http://bit.ly/1g72t1b)
Manually set the row description via the InitializeGroupByRow event (http://bit.ly/1ix1CbK)
Option 1 doesn't appear to give me what I need because the cell's display value is not exposed in the set of tokens they provide. Option 2 looks promising but it's not clear to me how to get at the cell's display value. The event argument only appears to contain the cell's backing value, which in my case is the GUID.
Is there a proper approach for using the group by functionality when you're also using an IEditorDataFilter implementation to convert values?
This may be frowned upon, but I asked my question on the Infragistic forums as well, and a complete answer is available there (along with an example solution demonstrating the problem):
http://www.infragistics.com/community/forums/p/88541/439210.aspx
In short, I was applying my custom editors at the cell level, which made them unavailable when the rows were grouped together. A better approach would be to apply the editor at the column level, which would make the editor available at the time of grouping, and would provide the expected behavior.
I have ComboBox (DropDown one) with 2 items in it ("One", "Onion"). When I type 'on' in combo and push dropdown arrow then the text i wrote automatically changes (item "One" is highlighted in list and text changes to "One").
How to prevent it?
I'm not entirely sure how you want it to behave since you don't actually specify, but there are three kinds of ComboBox types: Simple, Dropdown, or Drop List. These each have different behaviors as well. I would suggest you play with the different types first and see if you find what you are looking for. You will find this setting in the properties under Type.
I believe you are currently using Dropdown. Changing it to Drop List should make it so that you can only type something that's in the ComboBox. IE: In your example they can only type One or Onion and it will auto complete to whichever is most similar.
I have a dropdown-list style CComboBox on a form. The nice thing about this style is it allows for type ahead--that is, you can type a character and it will jump to the first item in the list matching that character. However, there are certain items which need to be excluded from this behavior. How might this be accomplished?
Just as a simple (and maybe ugly) "trick" idea: Can you mask the items you want to exclude from type ahead search by any special character, like * as first character for instance? (So you would add to the ComboBox *MyItemText instead of MyItemText.) If your item list needs to be sorted you have to switch off the autosort property of the ComboBox and do your own sorting (without the *) before you add the items to the ComboBox. Users would also recognize that this is an item not to be found by type ahead (if this makes any sense or should be useful in your application).
The CComboBox does not have any Edit or TextChanged event. So my guess is that for another better solution you have to go the hard way and evaluate single keyboard events and run own your search through the item list. I don't have a better idea.