listview 问题

Question

            lvPerList.Columns.Add("ID", 100);
            
            lvPerList.Columns.Add("姓名", 50);
            lvPerList.Columns.Add("身份证号", 100);
                while (dr.Read())
                {
                    ListViewItem item = new ListViewItem();
                    item.SubItems.Add(dr["ID"].ToString());
                    item.SubItems.Add(dr["Name"].ToString());
                    item.SubItems.Add(dr["IDCard"].ToString());
                    lvPerList.Items.Add(item);
                }
为什么每一行的各列会往后移一个,
第一列显示到第二列,
第二列显示到第三列,
第三列不显示

Answer 1

第一列显示的是item的text.而不是dr["ID"].ToString())

Answer 2

怎么让它显示dr["ID"].ToString()?

Answer 3

lvPerList.Columns.Add("ID", 100);
            
            lvPerList.Columns.Add("姓名", 50);
            lvPerList.Columns.Add("身份证号", 100);
                while (dr.Read())
                {
                    ListViewItem item = new ListViewItem();
                    item.Text=dr["ID"].ToString();
                    item.SubItems(1)=dr["Name"].ToString();
                    item.SubItems(2)=dr["IDCard"].ToString();
                    lvPerList.Items.Add(item);
                }

Answer 4

while (dr.Read())
                {
                    ListViewItem item = new ListViewItem();
                    item.Text=dr["ID"].ToString();
                    item.SubItems.Add(dr["Name"].ToString());
                    item.SubItems.Add(dr["IDCard"].ToString());
                    lvPerList.Items.Add(item);
                }

Answer 5

 while (dr.Read())
{
    ListViewItem item = new ListViewItem(dr["ID"].ToString()); 
    item.SubItems.Add(dr["Name"].ToString());
    item.SubItems.Add(dr["IDCard"].ToString());
    lvPerList.Items.Add(item);
}