OS: WIN 8
WX VERSION: 3.0.2
Having problem with wxListItem - wxListCtrl:
I have a wxListCtrl with 2 columns and with the following masks: wxLC_REPORT | wxLC_EDIT_LABELS | wxLC_SINGLE_SEL | wxLC_HRULES | wxLC_VRULES
Problem: I want to edit the labels in the 2nd column by mouse click but at the moment, a mouse click anywhere in a specified row only edits the 1st column.
why is that? what would I need to do to edit only the 2nd column and prevent column 1 from being edited?
I have checked the official documentation, but there is not much info on the mask, as I would like to think this might be a problem related to improper use of the appropriate MASK
Thanks
wxListCtrl only supports editing of its first column due to the same limitation in the native list view control used to implement it under MSW.
If you need all columns to be editable, consider wxDataViewCtrl or wxGrid. Unfortunately neither of them is native under MSW (see this table), but wxDVC doesn't look too bad, especially with the latest versions.
Related
I have a table with human parameters. I want to hide one column, for example age, if attribute :showall: is not set. How to do that? I can hide only the whole table, but not the one column.
.Human parameters
:showall:
ifdef::showall[]
[cols="1,1,1,1,1"]
|===
|Name
|Sex
|Age
|Country
|Weight
5+^|Values
|John Daw
|Male
|41
|Algeria
|85
endif::showall[]
That's not a built in feature.
You have two options:
For cell content that should be hidden, simply remove it from the table.
If you need show/hide functionality, you'll need to add some custom JavaScript and CSS to make that happen.
For option 2, the technique for including JS/CSS is called Docinfo files.
You'll have to experiment with column show/hide, as there may be browser compatibility or presentation issues that would need to be addressed. That said, this answer might show a technique that would work for you: https://stackoverflow.com/a/34098320/4023764
I am currently using Oracle APEX version 18.2.0.00.12 on Internet Explorer 11 and I am experiencing problems with getting my interactive grids to render correctly with regards to the widths of the columns.
I created an Interactive Grid on my page with the following query:
SELECT * FROM TABLE_NAME;
I did not change any of the default settings for the region; all I did was create the IG and then run the page.
When I run the page in IE, this is what I see:
Note: I have not yet added any data to the table.
The problem is that all of the columns are too narrow. However, when I run the same page in Google Chrome, this is what I see:
The columns are all sized proportionally in order to take up the full width of the IG, which is what I want.
I do not understand why the IG is rendered differently in IE versus Chrome. I know that I can set the Minimum Column Width for each column in the IG, but I would hate to do that every time I create an IG. Is there a different solution that would make the IG render in IE the same way that it does in Chrome?
Thank you in advance.
Actually remembered a solutuion. I cannot explain to you why this works, or how best to use it. But when I had this problem I sort of patched it by saving a default report.
But the strange thing, you had to manually adjust every column, even if it was to the same size as before, it just had to have been adjusted before the default report was saved. Then the grid would show as it should, but this isnt that good a solution since its only ok if everybody uses the same size display,..
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
I want to make a list of n rows with m columns. Last column must contain a button which on clicking deletes the entire row which that button belongs to.
Click here to see my desired GUI.
I have already looked for wx.grid and didn't get any success.
My questions are
Can this be achieved by using wx.ListCtrl?. If yes then how?
Which is the best wx widget other than wx.grid to achieve this.
Any sample code or illustration will be appreciated.
Thanks
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.