//Delete Author
private void BtnDeleteAuthor_Click(object sender, EventArgs e)
{
if (_selectedAuthor == null)
{
MessageBox.Show("Please select author", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
DialogResult r = MessageBox.Show("Are you sure?", "Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (r == DialogResult.Yes)
{
_context.Authors.Remove(_selectedAuthor);
_context.SaveChanges();
}
else if (r == DialogResult.No)
{
return;
}
ClearAuthors();
FillAuthors();
TxbAuthorEdit.Clear();
}
private void BtnEditAuthor_Click(object sender, EventArgs e)
{
if (_selectedAuthor == null)
{
MessageBox.Show("Please select author", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (string.IsNullOrEmpty(TxbAuthorEdit.Text))
{
LblErr.Visible = true;
return;
}
LblErr.Visible = false;
DialogResult r = MessageBox.Show("Are you sure?", "Update", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (r == DialogResult.Yes)
{
_selectedAuthor.Fullname = TxbAuthorEdit.Text;
_context.SaveChanges();
ClearAuthors();
FillAuthors();
}
if (r == DialogResult.No)
{
return;
}
TxbAuthorEdit.Clear();
}
