1、使用Tabel Widget控件的时候怎么把下图中表格左上角单元格的背景色设置为黑色?
2、表头怎么让每个单元格都有边框线?
3、怎么设置单元格文字居中(下边这段代码会使程序异常)?
int nCount = ui->tableWidget->rowCount();
int nClumn = ui->tableWidget->columnCount();
for (int n = 0; n < nCount;n++)
{
for (int m = 0; m < nClumn ;m++)
{
ui->tableWidget->item(n,m)->setTextAlignment(Qt::AlignHCenter|Qt::AlignVCenter);
}
}