private void Button_Refresh_Click(object sender, EventArgs e)
{
if (_dal == null)
{
return;
}
if ((sender == null && e == null) ||
(textBox_BookName.Text.Trim() == String.Empty && textBox_BookPublisher.Text.Trim() == String.Empty &&
textBox_BookAuthor.Text.Trim() == String.Empty))
{
_books = _dal.GetAllBooks();
dataGridView_Books.DataSource = _books;
}
Book searchedBook = new Book(textBox_BookName.Text.Trim(), textBox_BookPublisher.Text.Trim(),
String.Empty, string.Empty, textBox_BookAuthor.Text.Trim());
_books = _dal.SearchedBooks(searchedBook);
dataGridView_Books.DataSource = _books;
if (dataGridView_Books.Columns.Count == 0 || dataGridView_Books.Rows.Count == 0)
{
return;
}
var dataGridViewColumn = dataGridView_Books.Columns["ItemFields"];
if (dataGridViewColumn != null)
{
dataGridViewColumn.Visible = false;
}
var gridViewColumn = dataGridView_Books.Columns["AuthorFields"];
if (gridViewColumn != null)
{
gridViewColumn.Visible = false;
}
var viewColumn = dataGridView_Books.Columns["BookFields"];
if (viewColumn != null)
{
viewColumn.Visible = false;
}
}
