SqlDataReader sqlread7 = mybase.getread("select sbbh,sbmc from sbxx");
                while (sqlread7.Read ())
                {
                    this.listView1.Clear();
                    for(int i=0;i <listView1.Items.Count;i++)
                    {
                        this.listView1.Items[i].SubItems[0].Text = sqlread7["sbbh"].ToString();
                        this.listView1.Items[i].SubItems [1].Text =sqlread7 ["sbmc"].ToString ();

                    }
                    
                }
运行时，控件始终空白。

this.listView1.Clear();
每读一次就清空掉了?

我试试

//查找水表信息
                SqlDataReader sqlread7 = mybase.getread("select sbbh,sbmc from sbxx");
                this.listView1.Clear();
                while (sqlread7.Read ())
                {
                    
                    for(int i=0;i <listView1.Items.Count;i++)
                    {
                        this.listView1.Items[i].SubItems[0].Text = sqlread7["sbbh"].ToString();
                        this.listView1.Items[i].SubItems [1].Text =sqlread7 ["sbmc"].ToString ();

                    }
                    
                }
 这样也不行

你断点调试看看有没有读到数据

数据没有问题，我试过了

能指点一下吗

listView1并没有添加子项,不空白才怪

能具体点指点一下吗