[solved] return a qstring of a line by lineposition of a plaintextedit

[jsulm]

@Karoluss96 Why don't you simply read the documentation?!
https://doc.qt.io/qt-6/qtextedit.html#setText
https://doc.qt.io/qt-6/qtextedit.html#setPlainText
https://doc.qt.io/qt-6/qtextedit.html#placeholderText-prop

[JonB]

@Karoluss96
What is going on here? Did you read what setPlaceHolder() does? It will only show anything if the text edit is empty. Is it? Is that what you really want anyway?

As @jsulm & I say, why don't you try reading the documentation and make the appropriate calls, rather than guessing and asking about each thing?

[Karoluss96]

@jsulm Thank I've already read it

[jsulm]

@Karoluss96 said in [solved] return a qstring of a line by lineposition of a plaintextedit:

Thank I've already read it

OK, and what is the problem?

[Karoluss96]

In Text Edit I want to see eg.:

'wait - waiting for data
protocol - data in protocol
end_of_contr - the end of control '

each record from sql query must be in new line separatly

not only last line (in example: 'end_of_contr - the end of control ')

[jsulm]

This post is deleted!

[jsulm]

@Karoluss96 said in [solved] return a qstring of a line by lineposition of a plaintextedit:

not only last line (in example: 'end_of_contr - the end of control ')

Then what does plainText contain before you add it to the text edit? And what does a contain? Did you do any debugging to find out why only last line is added?

Hint: if you call setText() it REPLACES what was added before...

[JonB]

@Karoluss96
Have already answered this several times above. Meanwhile, do you really intend to use setPlaceholderText() for what you want? Or do you intend to not answer?

[Karoluss96]

@jsulm said in [solved] return a qstring of a line by lineposition of a plaintextedit:

Then what does plainText contain before you add it to the text edit? And what does a contain? Did you do any debugging to find out why only last line is added?
Hint: if you call setText() it REPLACES what was added before...

I debuged by print(). Console present all options good, in lines one by one. I removed placeHolderText for setText but as the documentation (and you) says it also replace the lines one-by-one, wheras I need that all lines must stay in textEdit

[jsulm]

@Karoluss96 If you want to keep what is already there then why don't you simply do

self.dlg.plainTextEdit.setText(self.dlg.plainTextEdit.text() + plainText)

[JonB]

@jsulm , @Karoluss96
Who knows what the OP actually wants?! But even simpler for that would be

self.dlg.plainTextEdit.appendPlainText(plainText)

(It might put in an extra \n before the new text, because it talks about "Appends a new paragraph with text to the end of the text edit.", not sure.)

[Karoluss96]

@jsulm @JonB Guys, both options are works!!!

Thanks for helping ... and keeping patient for me!
(I have a new roomate in my work, but I don't know at what hour he appear, so I have a little stress. Finally he appears... a little after presenting last your answers :-D)

[JonB]

@Karoluss96 It was your roommate's fault ;-)

[Karoluss96]

Ha, ha, ha @JonB :-D