private void toolClearAll_Click(object sender, EventArgs e)
{
if (FileLesson.Index == 0)
{
return;
}
if (MessageBox.Show("Are you sure you want to remove all lessons?", "Warning", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Warning) == DialogResult.Yes)
{
foreach (ListViewItem item in lvLessons.Items)
{
FileLesson.removeLesson(item.Index);
lvLessons.Items.Remove(item);
}
}
}
private void toolDeleteLesson_Click(object sender, EventArgs e)
{
int selectedCount = lvLessons.SelectedIndices.Count;
if (selectedCount <= 0)
{
return;
}
if (MessageBox.Show("Are you sure you want to remove selected (" + selectedCount + ") lessons?", "Warning", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Warning) == DialogResult.Yes)
{
foreach (ListViewItem item in lvLessons.SelectedItems)
{
FileLesson.removeLesson(item.Index);
lvLessons.Items.Remove(item);
}
}
}