[QTableView remove selected rows?

[veera]

@VRonin
I am using this model
QSqlQueryModel *model = new QSqlQueryModel;

[VRonin]

from http://doc.qt.io/qt-5/qsqlquerymodel.html:

The QSqlQueryModel class provides a read-only data model for SQL result sets.

Since it's read only it does not allow you to delete rows

[veera]

Then which model i need to use and how to do it please give me some examples ........

[VRonin]

either QSqlTableModel (be carefull with this one, read the docs) or you manually populate a QStandardItemModel from the data you get from a QSqlQuery

[veera]

give me some examples so that i can understand it better

[VRonin]

QStandardItemModel + QSqlQuery https://forum.qt.io/topic/76135/qsqlrelationaltablemodel-and-complex-queries/21

QSqlTableModel http://doc.qt.io/qt-5/qsqltablemodel.html#details

[veera]

Its not happening ....... i have selected one and tried but its not deleting and tried many rows also not deleting my database is MSSQL in Ubuntu.....

[VRonin]

30 minutes before giving up?

create a dummy table in your database (so even in case of a disaster you won't lose anything important) and try with QSqlTableModel

[veera]

I want to something this type of query
query->prepare("DELETE FROM Info WHERE ID = ?");
query->addBindValue(ID);
for deleting of entire row by selecting a particular row...........

[VRonin]

QSqlTableModel or QSqlRelationalTableModel does that for you if you can live with simple queries. if you have convoluted joins then you'll have to connect to the model rowsRemoved or rowsAboutToBeRemoved signal and prepare the query manually

[veera]

@VRonin
I am a beginner of MS SQL so please give me examples

[VRonin]

... it's included as part of Qt's examples: http://doc.qt.io/qt-5/qtsql-relationaltablemodel-example.html

[veera]

i go through the examples in that they creating QTableView *view = new QTableView; but i am designed in the UI drag and drop of Tableview and everything so.........

[VRonin]

There is absolutely no difference. The trag and drop in Qt Designer generates an xml file describing your interface then uic converts that xml into code basically identical to the one in the examples.

On top of this, your problem is not in the UI but in the model design so you should not really care about how the UI is created

[veera]

I go through those examples ,explaining the inserting data into the tableview but they did not explain the deleting particular row after selecting it........

[veera]

through out my project i am using this model
QSqlQueryModel *model = new QSqlQueryModel;
its happening by executing qurey by passing id via line edit but i am trying selecting entire row and pressing delete is not happening ......

[VRonin]

QSqlQueryModel is read only. you cannot delete, insert or change anything

[veera]

with this model only i am inserting and updating data into qtableview but delete is not happening ?,if u want i can share the code insert and updating data .......