I would like to "explore"/get values of cells of a simple Gtk::TreeView, but I have no clue of its to content/model. I do not have any handle on its Gtk::TreeModel::ColumnRecord.
I only know that TreeView's model type is ListStore and all cells contains a Glib::ustring
Note: I use gtkmm 3.24.5.
Related
Is it possible to have a grid column containing multiple types inside of it based on the value of a cell? Where each cell is rendered based on value. For instance, with in the same column a cell could be of type 'text' or 'datetime' or 'list' etc... and for each type I can use built in inline-editing? See image illustration below. Basically a key/value editor where the value column need to contain more than one 'type. Please post a sample answer.
It's possible, but you cannot rely on standard funtionality.
The idea of a w2grid is to assign a renderer to a column and render all cells of the same column in the same way.
You could implement a render function for your column and then generate the HTML for each cell based on those arguments:
http://w2ui.com/web/docs/1.5/w2grid.columns
Or you could override getCellHTML() for your grid.
Have a look at the implementation of getCellHTML() to see what awaits you if you want to customize it:
https://github.com/vitmalina/w2ui/blob/master/src/w2grid.js#L7396
Although it was a hack solution I ended up creating multiple grids aligned vertically each with a property & value column but the value column's 'type' attribute is different for each grid based on the w2ui framework out of box functionality I Desired for it. Each Grid is also separated by the header without padding to give it a feel like it is one grid. See Image below. now obviously the draw back of this is you cannot sort on all the fields but this is not required in my use case.
I need to slightly modify a ag-grid row after it has been rendered. In ag-grid, the actual HTML elements are not necessarily persistent, so manually-set styles may fall off.
For one thing, I have to modify the selection checkbox to set its tabindex to -1. This can technically be done in the cellRenderer callback, although it looks quite hacky. (The checkbox can be found at params.eGridCell.children[0].children[0].wrappedElement.)
But I also have to add a CSS class to some rows to highlight them based on external criteria. I haven't found a way to do this at all.
The best solution would seem to be using some sort of after-rendering callback, but to my knowledge no such thing exists.
I found a couple of related questions, but they were both resolved via cellStyle, which would not suffice here:
Row formatting in ag-Grid
How to provide a background color for an entire row in ag grid based on a certain value in a column?
You have not 1 but 3 options:
getRowClass(params):
Callback version of property 'rowClass'. Function should return a string or an array of strings.
getRowStyle(params):
Callback version of property 'rowStyle'. Function should return an object of CSS values.
processRowPostCreate(params):
Allows you to process rows after they are created. So do final adding of custom attributes etc.
In this last one you have the row in params.eRow.
All taken from https://www.ag-grid.com/javascript-grid-callbacks/index.php
I have a uitable with 10 columns, which I'm populating from a db.
Now I want to know when the user choose a specific row. For example if the user chooses the 3rd record, I would like to get back the value 3, so then I could access the actual information to for example open that specific record from the path.
I found online that I would need findjobj.
I also think that the method should be implemented in here:
function uitable_CellSelectionCallback(hObject, eventdata, handles)
However I found a little information about how I should proceed.
Anyone had this problem or knows how to solve it?
When calling the CellSelectionCallback you can access the Indices property, which is a 2 x 1 array containing the row and column indices of the cell you have selected.
Therefore in your callback, use something like this:
row = eventdata.Indices(1)
col = eventdata.Indices(2)
and that should get you going.
In order to avoid callbacks, you can use app.UITable.Selection in the newer versions of MATLAB where app is your app object and UITable your uitable name
I'm currently facing the following problem:
In my abap program I am using an ALV grid to display a list of data.
Now I have got the requirement to convert the data of cell 5 depending on the value entered in cell 3. Normally I could just do this by implementing a handler method for the DataChanged or DataChangedFinished events.
But in my case the value of cell 3 is written into the backend table i connected to the alv grid when creating it via the method SET_TABLE_FOR_FIRST_DISPLAY. That means the alv does not register it when the data is changed. I also tried to use the method CHANGE_DATA_FROM_INSIDE of CL_GUI_ALV_GRID and this partly works if I set the value of VAL_DATA in the layout structure to 'X' when initializing the grid. The program runs through my handler for the DataChanged event.
But in my case it results in a short dump because the method can only work with caracter fields and I need cell 3 and cell 5 to be decimals. The dump is caused in the GET_CHANGED_DATA method of CL_GUI_ALV_GRID. When I am applying this mechanism to character fields it works fine.
This question refers to the following thread where I got the idea of setting the VAL_DATA flag of the layout structure from:
StackOverFlow Question
Did anyone ever face the same problem? Do you have any advice for me?
I have an list of checkboxes on a GWT widget using Gwittir. I want to bind these checkbox values in my view to some values in my Model so that I can tell which ones are selected. How can I set up a binding to do this?
For a single value (one not in an array), I've been doing this:
Binding binding = new Binding();
binding.getChildren().add(
new Binding(viewObj.getTextBox(),"value",modelObj,"textValue"));
But I don't know how to transition this to work for an array of items. Please help.
I ended up not using Gwittir for those parts which dealt with arrays of data. Instead I manually transferred the data from my view to my controller when the user clicked a button which would record the state of all the checkboxes in an array to an array of values in the controller.