qt tableview中setModel()报错

#include "openhistogram.h"

OpenHistogram::OpenHistogram(QWidget *parent)
	: QWidget(parent)
{
	ui.setupUi(this);
	init_histogram();
}

OpenHistogram::~OpenHistogram()
{
	if (thresholdParam)
	{
		delete thresholdParam;
	}
}

int OpenHistogram::init_histogram()
{
	thresholdParam = new QStandardItemModel(this);
	thresholdParam->setColumnCount(5);                        //设置参数表为2行
	thresholdParam->setHeaderData(0, Qt::Horizontal, QString("select algorthm"));
	thresholdParam->setHeaderData(1, Qt::Horizontal, QString("min"));
	thresholdParam->setHeaderData(2, Qt::Horizontal, QString("max"));
	thresholdParam->setHeaderData(3, Qt::Horizontal, QString("other"));
	thresholdParam->setRowCount(2);
	thresholdParam->setHeaderData(1,Qt::Vertical,QString("algorthm"));
	QStandardItem *cur_item = new QStandardItem[2];           //设置参数表为5列
	ui.thresholdParaView->setModel(thresholdParam);
	return 1;
}

    ui.thresholdParaView->setModel(thresholdParam);

这一行会报错，可能有三方面导致

1、    ui.setupUi(this);要写在    init_histogram();之前

2、   要对thresholdParam 实例化

3、    要对thresholdParam 释放