private void btnEventReport_Click(object sender, EventArgs e)
{
foreach (Form c in this.ParentForm.MdiChildren)
{
if (c.GetType() == new ReportTool().GetType())
{
rt = true;
}
}
if (!rt)
{
ReportTool eventReport = new ReportTool();
eventReport.MdiParent = this.ParentForm;
eventReport.Show();
}
}