Slow Scroll on QTableView after inserting 800 Rows and 27 Column.

[TobbY]

i Have added one time 800 rows and 27 columns. But scrolling through table is slow. please help.

[VRonin]

This smells a lot like a problem in either the model or the delegate. What are you using?

[TobbY]

@VRonin I am not using any delegate. only Displaying data using custom model. but i have already added data to model.

[VRonin]

Can you post the code for your custom model?

Also, can you try with:

QAbstractItemModel* model = new QStandardItemModel(this);
model->insertColumns(0,27);
model->insertRows(0,800);
for(int i=0;i<800;++i){
for(int j=0;j<27;++j)
model->setData(model->index(i,j),QString::number(i) + ','+ QString::number(j));
}

and see if that's fast enough for you?

[TobbY]

@VRonin Now it is solved . problem is in data(const QModelIndex &index, int role = Qt::DisplayRole) function. Thanks for helping.