private void btnDelete_Click(object sender, EventArgs e) { if (TabC.SelectedTab == tbA) { DialogResult ret = MessageBox.Show("你确定要删除当前信息吗?", "删除警告", MessageBoxButtons.YesNo, MessageBoxIcon.Warning); if (ret == DialogResult.Yes) { int n = ActivityManager.DeleteActivityByAName(txtActivityTitle.Text); if (n > 0) { dgvTextAInfo.RowsDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; dgvTextAInfo.DataSource = ActivityManager.SelectFestivalActivityAll(); MessageBox.Show("删除成功!", "删除提示"); } } } else if (TabC.SelectedTab == tbS) { DialogResult ret = MessageBox.Show("你确定要删除当前信息吗?", "删除警告", MessageBoxButtons.YesNo, MessageBoxIcon.Warning); if (ret == DialogResult.Yes) { int n = ActivityManager.DeleteTextActivityByAName(txtActivityTitle.Text); if (n > 0) { dgvAInfo.RowsDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; dgvAInfo.DataSource = ActivityManager.SelectActivityAll(); SelectDGV(); MessageBox.Show("删除成功!", "删除提示"); } } } else { MessageBox.Show("删除失败!", "删除提示"); } }