WTable and the Widgets inside
Added by Sebastian Fett about 5 years ago
Hey,
I recently had to swap from JS and Python to WT so im pretty new to WT in general.
The tutorials show how to create a table and fill it with information. Currently I am adding rows based on button click and want to read all those entries at once.
Ive tried it as I was used to in JS but I am not getting anywhere close to my expectations. Returning the table->elementAt(row,column) gives me a WTableCell of which i can get the widget with the ID (since it has only 1 entry per cell that should work fine.
But now im stuck trying to get say the content of my WLineEdit at said TableCell
@ Wt::WLineEdit *line1 = new Wt::WLineEdit(Wt::WString::fromUTF8(\" \"));
table~~elementAt(rows, 1)~~>addWidget(line1);
@
Sets the new row and LineEdit, then I try to receive it wiith
@ Wt::WString = table~~elementAt(x,y)~~> ->text(); @
I've tried it with getting the children from the TableCell but that didnt work either.
I must admit I miss the ability to work with JS objects in the browser console.
Thanks in advance
Replies (4)
RE: WTable and the Widgets inside - Added by lm at about 5 years ago
Sebastian Fett wrote:
Wt::WString = table~~elementAt(x,y)~~> ->text();
I've tried it with getting the children from the TableCell but that didnt work either.
You're using WT version 3? What error do you get?
RE: WTable and the Widgets inside - Added by Sebastian Fett about 5 years ago
Yes I am using WT v 3, my issue is I cannot figure out how to get the widget at the Table Cell. Children gives me a WWidget which cannot call the text.
So in the case with children the error would be that WWidget has no member named "text()". Do I need to cast the result of children to WLineEdit?
I feel like I am missing something cuz in JS I could just get the element at the table cell and one of the children would be the WLineEdit, should be close to that in WT I guess?
Id be super happy if you could supply me with an example which reads from a table entry so I could figure out how to call the entries
Thanks
RE: WTable and the Widgets inside - Added by Wim Dumon about 5 years ago
Sebastian,
WTableCell inherits from WContainerWidget, a widget which contains other widgets. If you only added one widget, your WLineEdit will be at widget(0) (or children()[0]). This returns indeed a WWidget, which will be of type WLineEdit (WLineEdit inherits from WWidget). Use C's dynamic_cast<WLineEdit *>(...) to cast the WWidget to the WLineEdit, and you'll be able to access the text() method.
Wim.
RE: WTable and the Widgets inside - Added by Sebastian Fett about 5 years ago
Thank you, haven't worked a lot with c so far so I completely missed the dynamic cast part.
Works perfectly fine now.