private void ShowItemPreview(object sender, System.EventArgs e)
{
if (null == this.formSummary)
{
this.formSummary = new FormSummary();
this.formSummary.Closed += new EventHandler(FormSummaryClosed);
this.formSummary.Show(this.dockPanel);
}
else
{
this.formSummary.Close();
}
this.menuItemItemPreview.Checked = (null != this.formSummary);
}
private void FormSummaryClosed(object sender, EventArgs e)
{
this.formSummary.Dispose();
this.formSummary = null;
this.menuItemItemPreview.Checked = false;
}