Error format a cell in QTableView

[jacek]

if (role == Qt::DisplayRole && idx.column() > 0 &&
index(idx.row(), idx.column(), idx.parent()).data().toString() == "0")

This causes an infinite recursion.

Use:

if( role == Qt::DisplayRole && idx.column() > 0 && QSqlQueryModel::data( idx ).toString() == "0" ) {
   ...

if( role == Qt::DisplayRole && idx.column() > 0 && QSqlQueryModel::data( idx ).toString() == "0" ) {
   ...

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or, since you call data() in the first line:

if( role == Qt::DisplayRole && idx.column() > 0 &&  v.toString() == "0" ) {
   ...

if( role == Qt::DisplayRole && idx.column() > 0 &&  v.toString() == "0" ) {
   ...

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[estanisgeyer]

Ok, it's works!
I do not understand where this happens recursion, could you explain?

Thanks,
Marcelo E. Geyer

[Ginsengelf]

Hi,
you call index() with the row, column and parent of the index you are testing, ergo get the same index, and then call data() (the method you are already in), which will calls index() with the row, column and parent of the index you are testing, ... until infinity.

Ginsengelf