private void 设备历史数据ToolStripMenuItem_Click(object sender, EventArgs e)
{
listView1.Visible = false;
var frm = new FrmDeviceData();
frm.MdiParent = this;
frm.Show();
}
private void btnDeviceData_Click(object sender, EventArgs e)
{
//FormHelper.CreateForm<Data.FrmDeviceData>();
var frm = new FrmDeviceData();
frm.MdiParent = this;
frm.Show();
SetParent((int)frm.Handle, (int)this.Handle);
}