I'm trying to set up a text widget that highlights the searched word, when I open a new file with QPlainText::setDocument, then immediately use QPlainText::setExtraSelections I get a SIGSEV crash in:
QTextDocumentPrivate::rootFrame
QTextDocumentPrivate::frameAt
QTextCursorPrivate::complexSelectionTable
QTextCursor::hasComplexSelection
QWidgetTextControl::selectionRect
QWidgetTextControl::setExtraSelections
QTextDocumentPrivate is causing a SIGSEV because it is a null this pointer. But this doesn't happen if no word is set before the document is loaded.
I must be supposed to do something to force it to generate the QTextDocumentPrivate. But I have no idea what that is.
Actually, this happens because QPlainText::setDocument does not remove the prior results of QPlainText::setExtraSelections. So when setting the new selections tries to remove the previous things selected, they all have invalid pointers and that causes the crash.
To fix it call: textEdit->setExtraSelections({}); to clear out the selections prior to calling QPlainText::setDocument.
Related
document_name ='TestDoc'
document_path = ("/Users/Me/QA/Project/Documents/#{document_name}")
File.new ("/Users/Me/QA/Project/Documents/#{document_name}") # => File is created
filename_field.send_keys("#{document_path}")
filename_field.send_keys :tab # => To Trigger event but where error occurs
filename_field = browser.file_field(:name, 'file') declared in a module elsewhere.
As far as I can tell, I have provided an absolute path for the filename to upload the file but when the tab key is sent, an error occurs of:
Selenium::WebDriver::Error::UnknownError: unknown error: path is not absolute:
With an odd squiggly symbol in RubyMine that I've never seen before. Any ideas?
Update:
I added
puts filename_field.value
# => C:\fakepath\TestDoc
Spoke to one of the developers and she said "Browser does it to fake things out, so the filesystem isn't exposed". Not sure if that helps solve my issue or I'm SOL?
That error comes from Chromedriver, and comes from sending an incorrect path string to a file element. Since :tab is not a path, it is correctly raising an error.
You shouldn't need to send a tab; just sending the path of the file should accomplish what you need.
I see many small strange things in your code.
Why
document_path = ("/Users/Me/QA/Project/Documents/#{document_name}")
Not
document_path = "/Users/Me/QA/Project/Documents/#{document_name}"
Why
filename_field.send_keys("#{document_path}")
Not
filename_field.send_keys(document_path)
But the main question is why you are using send_keys instead of set?
I failed to reproduce your problem. Maybe it will be possible if you will provide your html. But i suggest you to try:
filename_field.set(document_path)
Because you can easily check it even with irb send_keys is acting differently in firefox and in chrome for example. So maybe problem with it.
Another suggestion
That is a much more weak idea. But...
Try to clear value before changing it. You can do it with javascript:
b.execute_script("arguments[0].value=''", field)
I had the same issue with Chromedriver 2.26.436421 and it was solved when I removed the code which was sending the tab key.
With previous Chromedriver sending tab key was required to trigger the change event on the file input but with latest one it seems like it is only causing issues and the change event gets triggered without it.
RunTime Error The Data has been changed.
I`m having a difficult time with one of my sub-forms. It used to work without complaints but I guess now it decided to be a little verbose. On this form I have a subform that has a variety of checkbox options. Whenever the user enters a checkbox option and then exits to the main form there is an On Exit Event which runs. It combines some textboxes from various forms and then puts that value in a textbox on the main form.
var1 = [Form1]![Textbox].Value
var2 = [Form2]![Textbox].Value
var3 = [Form3]![Textbox].Value
Me.[TextBox].Value = var1 & var2 & var3
For some reason upon exiting the subform I am getting the Runtime error.
The pattern is not apparent.
I can navigate from the subform to the main form without making any changes in either without receiving an error message.
If I go into the subform, make a change, exit the subform, the textbox will be updated with no complaint, however if I go back into the subform, do not make a change and then go back to the main form, then I get the runtime error
similarly after making sure that behavior 1 is true I can go into the subform, change something come back out, but if I try to go back into the subform and make an additional change I will get a complaint. (I was able to fix this by making an on enter event refresh the subform)
I am unable to get the Runtime Error fixed though... :(
I see that this is an issue for many people with no solution. Here was my work around.
From my observation the form that was having it's Textbox.value updated is somehow silently updated by either the on enter or on exit of it's subform so when the on exit action of updating that textbox occurs it complains that the main form was updated, thus leaving me to conclude that when that form is updated it is not shown to the user.
Thus, my work around is to requery the main form on the subform's exit in order to get that new data loaded and changed.
Caveat!! Requery will by default bring you back to the first record thus presenting the possibility of changing the textbox of the wrong record. Thus as part of the requerying process, if you choose this hack, you will have to bookmark the current open record, requery, and then fetch that record again. I used the code from this webpage in order to achieve the desired effect. Thus circumnavigating the 7878.
Requery and stay on record:
http://www.baldyweb.com/Requery.htm
I don't understand how QTable::editCell() should be used. I am trying to do some error checking based on entries made by user in a QTable as mentioned in my another question.
I would like to give user an opportunity to re-edit the cell which has error. For example, if name column entry has some special characters such as '(', the user should be prompted for the error and the control should go back to same cell in edit mode. I tried using QTable::editCell() in my code as shown below.
Table->editCell(row, 0, TRUE);
name = Table->text(row, 0);
However, this doesn't work as expected. The control doesn't stay in the cell at all and obviously the name is not correctly collected. So, my question is how to ensure from within code that a cell of QTable can be edited so that the edited contents can be accessed immediately in next statement (as shown in above code).
Note: I am working with qt 3.3.8 only.
I don't think you can do that. You'll have to go back to the event loop, and wait for one of the signals (like valueChanged(row,col)) to be fired to re-validate the data.
A blocking wait on a GUI object is often not a good approach (except for modal dialogs).
I know I'm a little late here but you should use the following connect statement with your own custom function to do your specific needs such as below. You can also use this method to disable users from entering in special characters within you custom function. That way they wont ever have to correct undesirable characters.
connect(ui->tableWidget, SIGNAL(cellChanged(int,int)), this, SLOT(customFunction(int,int)));
void updateTable
{
//remove invalid characters
}
I'm doing the Wicked Code implementation of SqlSiteMapProvider, except in VB.NET.
There's a few things with the code that are causing issues, and I don't understand how it is supposed to work the way it's written in the article. I've provided the code straight from the article provided below. I've pasted the code here for ease of viewing
First issue - the depedency is instantiated BEFORE (lines 134-137) the tree is created (151-160) - so as soon as you add the depedency to the http.cache (165-167), the OnSiteMapChanged event (242) fires immmediately - making the entire proccess run again - and this loops many times until finally something makes it stop. (i stepped through it and counted the code looping at least 20 times before I gave up on trying to guess when it hit last)
OK, so to fix this I just moved the code to the create the dependency to AFTER the tree is built, right before inserting to http.cache (so HasChanged property is false when adding to http.cache, and you don't get stuck in this psuedo-ifinite-loop).
I still have a problem though - every time a page loads, the BuildSiteMap() hits and line 121 checks if _root is not null - it seems it is never null after it is first built... this is good because I don't want to hit the DB each time. Now, I insert a record into the table... the OnSiteMapChanged event never fires. As I browse pages on the app, the sitemap does not reflect the newly inserted record - stepping through the code, I see that the check at line 121 is still causing the function to short circuit... The sitemap will only refresh if i re-start Visual Studio, which causes the private _root field to become null again, and re-builds the sitemap, reflecting the new changes.. (refreshing the browser or starting new browser instances does not work)...
EDIT: THE ISSUE STEMMED FROM A SILLY 'SET NOCOUNT ON' LINE IN THE TOP OF MY STORED PROC. APPARENTLY THIS BREAKS THE QUERY NOTIFICATION. It seems that this statement is seen as a result set and that the second, actual query statement invalidates the result set resulting in a notification. This was very hard to find and nowhere in the MSDN documentation until I added the comment. Hope this saves someone else the miser I went through!
THE ISSUE STEMMED FROM A SILLY 'SET NOCOUNT ON' LINE IN THE TOP OF MY STORED PROC. APPARENTLY THIS BREAKS THE QUERY NOTIFICATION. It seems that this statement is seen as a result set and that the second, actual query statement invalidates the result set resulting in a notification. This was very hard to find and nowhere in the MSDN documentation until I added the comment. Hope this saves someone else the miser I went through!
I have a weird problem where the "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints." error sometimes pops up when I am trying to build my project.
The line in question throwing the error was auto-generated code in the designer file for the dataset. To find out the offending table, I used the following code:
Try
Me.Adapter.Fill(dataTable) <--Breakpoint here on the offending line
Catch ex As Exception
For Each TRow As DataRow In dataTable.Rows
If TRow.HasErrors Then
Trace.Write(TRow.RowError)
End If
Next
End Try
Funnily enough, as soon as I run the project after putting in the above code and breakpoint, the error disappears. I assume this has something to do with the code being regenerated. All data is presented successfully, and the project compiles without errors.
However, this has happened often enough for me to frustrate me. Anybody know what might be causing the error and how I can isolate it?
What unique constraint are you placing on the datatable and have you verified that the data your passing in doesn't have any duplicates? If this is coming from a shared database perhaps someone else is modifying the data which could be causing the randomness.
Edit
If that code is exactly as what you have (And forgive me my vb.net is not as strong as my C#). Wouldn't it swallow the exception? In C# we need to rethrow the error.
Add a Trace.Write() right before you go into your for loop.
You are probably working with a typed dataset, or have some code configuration on it. Also you might be reading from one table, and then adding data from another.
In any of those cases, you really want to look into any inconsistencies between the schema. If it is a typed dataset / or configured in code, check its definition, and look for anything different from the sql table. If you are reading from 2 different tables, check the definition of both tables.
Figured it out finally!
The reason the breakpoint wasn't being hit was because the code in question was auto-generated, and had the attribute "DebuggerNonUserCodeAttribute". In addition, in my VS settings, I had set the debugger to "Just my code".
When I ran the code again, and the breakpoint wasn't hit, I noticed the breakpoint icon had changed to a warning. Hovering showed this:
"The breakpoint will currently not be hit. Breakpoints cannot be set in a method or class with the 'DebuggerNonUserCode' attribute when the debugger option 'Just My Code' is enabled."
Ouch!
Once I had removed the "Just My Code" debugging option, the breakpoint was hit, and I discovered that one of the rows had a NULL value in one of the columns which had a non-null constraint. Stupid ole' me!
You should use this code before you fill DataTable :
var dt = new System.DataTable.DataTable();
dt.Clear();
dt.Rows.Clear();
dt.Columns.Clear();