窗口传值
From1 listview空间，查询按钮button，点击查询button跳转到From2.From2连接数据库查询数据，查询的结果返回到From1的listview。问题是我现在From1 listview什么值都没有的到。本人小白，所以各位最好详情点，谢谢。
AseDataReader reader = null;
Myplayer myplayer =new Myplayer();
AseConnection conn = new AseConnection("Data Source='192.168.7.88';Port='5000';UID='sa';PWD='';Database='GZMCH'; MaxPoolSize = 10;MinPoolSize = 5;ConnectionTimeout = 15;");
try
{
conn.Open();
// String sqlstr = "select phone,filename from call_phone_takelog_ago where logtime>" + starttime + " and logtime<" + endtime + "";
String sqlstr = "exec sp_lylisten";
AseCommand cmd = new AseCommand(sqlstr, conn);

reader = cmd.ExecuteReader();
while (reader.Read())
{
ListViewItem lv = new ListViewItem();
lv.SubItems.Clear();
lv.SubItems.Add(Convert.ToString(reader["rowid"]));
lv.SubItems.Add(Convert.ToString(reader["phone"]));
lv.SubItems.Add(Convert.ToString(reader["filename"]));
myplayer.listView1.Items.Add(lv);

}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
finally
{
this.Hide();
reader.Close();
conn.Close();
}
[解决办法]

引用:

我用的是show（）；

//Form2
public Form1 Test { get; set; }
//Init为Form1中的ListView的初始化方法
Test.Init(DataTable dt);

Form2 f2 = new Form2();
f2.Test = this;
f2.Show();

这样就相当于你将Form2中得到的Datatable传回给Form1了