private void btnSave_Click(object sender, EventArgs e) { DataBaseDataContext myConnection = Setting.DataBase; if (string.IsNullOrEmpty(txtTitle.Text) || string.IsNullOrWhiteSpace(txtTitle.Text)) { DataValidationMesaage.BlankTextBox("عنوان"); return; } if (myConnection.PlayingBoardGroupTitles.Any(a => a.GroupTitle == txtTitle.Text.Trim())) { DataValidationMesaage.DuplicateData(txtTitle.Text); return; } PlayingBoardGroupTitle playingBoardGroupTitle = PlayingBoardGroupTitle.Insert(txtTitle.Text.Trim(), myConnection); ClearTextBox(); DataValidationMesaage.AcceptMessage(playingBoardGroupTitle.GroupTitle); PlayingBoardGroupTitle.LoadGrid(gridPlayingBoardGroupTitle, myConnection); myConnection.Dispose(); }