private void AddSectionsButton_Click(object sender, EventArgs e) { if (SectionsNameTextBox.Text.Length == 0) { Warning(); } else { bool isUnique = SectionsRepository.CheckUnique(SectionsNameTextBox.Text); if (isUnique != true) { bool isSectionAdded = SectionsRepository.InsertSection(SectionsNameTextBox.Text); if (isSectionAdded == true) { SectionsNameTextBox.Text = ""; } } else { SectionsNameTextBox.Text = ""; } } }