private void SearchBtn_Click(object sender, RoutedEventArgs e)
{
string UserId = UserIdTxtBx.Text;
try
{
if (string.IsNullOrEmpty(UserId))
{
MessageBox.Show(
messageBoxText: "Please enter valid Values.",
caption: "Error",
button: MessageBoxButton.OK,
MessageBoxImage.Error);
UserIdTxtBx.Focus();
}
else
{
con.Open();
SqlCommand checkUser = new SqlCommand("SELECT COUNT(*) FROM Users WHERE Id= @Id", con);
checkUser.Parameters.AddWithValue("@Id", UserIdTxtBx.Text);
int BookExist = (int)checkUser.ExecuteScalar();
if (BookExist > 0)
{
SetValueForUserId = int.Parse(UserIdTxtBx.Text);
new EditMemberInformation().Show();
Close();
}
else
{
MessageBox.Show(
messageBoxText: "User Not Found!",
caption: "Error",
button: MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
}
catch (Exception b)
{
MessageBox.Show(
messageBoxText: "Exception occur :" + b.Message + "\t" + b.GetType(),
caption: "Exception",
button: MessageBoxButton.OK,
icon: MessageBoxImage.Error);
}
}
private void BorrowBtn_Click(object sender, RoutedEventArgs e)
{
try
{
string BookId = BookIdTxtBx.Text;
string UserId = UserIdTxtBx.Text;
if (string.IsNullOrEmpty(BookId) && string.IsNullOrEmpty(UserId) && ReturnDateDP.SelectedDate == null && DeadlineDateDp.SelectedDate == null)
{
MessageBox.Show(
messageBoxText: "Please enter valid Values.",
caption: "Error",
button: MessageBoxButton.OK,
MessageBoxImage.Error);
BookIdTxtBx.Focus();
UserIdTxtBx.Focus();
ReturnDateDP.Focus();
DeadlineDateDp.Focus();
}
else
{
con.Open();
cmd = new SqlCommand("INSERT INTO BorrowedBooks (BookId,UserId,ReturnDate,DeadLineDate,IssueDate) VALUES (@BookId,@UserId,@ReturnDate,@DeadLineDate,@IssueDate)", con);
cmd.Parameters.Add("@BookId", BookIdTxtBx.Text);
cmd.Parameters.Add("@UserId", UserIdTxtBx.Text);
cmd.Parameters.Add("@ReturnDate", ReturnDateDP.SelectedDate);
cmd.Parameters.Add("@DeadLineDate", DeadlineDateDp.SelectedDate);
cmd.Parameters.Add("@IssueDate", DateTime.Now);
cmd.ExecuteNonQuery();
MessageBox.Show(
messageBoxText: $"Book with Book Id : «{BookIdTxtBx.Text}» successfully Borrowed.",
caption: "Successful Adding",
button: MessageBoxButton.OK,
icon: MessageBoxImage.Information);
con.Close();
}
}
catch (Exception b)
{
MessageBox.Show(
messageBoxText: "Exception occur :" + b.Message + "\t" + b.GetType(),
caption: "Exception",
button: MessageBoxButton.OK,
icon: MessageBoxImage.Error);
}
}
private void BorrowBtn_Click(object sender, RoutedEventArgs e)
{
try
{
string BookId = BookIdTxtBx.Text;
string UserId = UserIdTxtBx.Text;
if (string.IsNullOrEmpty(BookId) && string.IsNullOrEmpty(UserId))
{
MessageBox.Show(
messageBoxText: "Please enter valid Values.",
caption: "Error",
button: MessageBoxButton.OK,
MessageBoxImage.Error);
BookIdTxtBx.Focus();
UserIdTxtBx.Focus();
}
else
{
con.Open();
SqlCommand checkdata = new SqlCommand("SELECT COUNT(*) From BorrowedBooks WHERE BookId= @BookId and UserId=@UserId", con);
checkdata.Parameters.AddWithValue("@BookId", BookIdTxtBx.Text);
checkdata.Parameters.AddWithValue("@UserId", UserIdTxtBx.Text);
int BookExist = (int)checkdata.ExecuteScalar();
con.Close();
if (BookExist > 0)
{
con.Open();
cmd = new SqlCommand("Delete From BorrowedBooks Where BookId=@BookId and UserId=@UserId", con);
cmd.Parameters.AddWithValue("@BookId", BookIdTxtBx.Text);
cmd.Parameters.AddWithValue("@UserId", UserIdTxtBx.Text);
int deleted = cmd.ExecuteNonQuery();
MessageBox.Show(
messageBoxText: $"The Book successfully Borrowed Back",
caption: "Successful",
button: MessageBoxButton.OK,
icon: MessageBoxImage.Information);
}
else
{
MessageBox.Show(
messageBoxText: "the enterd record not Found.",
caption: "Error",
button: MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
}
catch (Exception b)
{
MessageBox.Show(
messageBoxText: "Exception occur :" + b.Message + "\t" + b.GetType(),
caption: "Exception",
button: MessageBoxButton.OK,
icon: MessageBoxImage.Error);
}
}
