private void btnDeletePage_Click(object sender, EventArgs e) { if (DialogResult.Yes == MessageBox.Show("确定删除?", "删除确认", MessageBoxButtons.YesNo)) { FormProvoider.DeleteTabPage(ItemID, FormProvoider.GetCurTabPage(ItemID)); StringBuilder pageText = new StringBuilder(256); FormProvoider.GetTabPageText(ItemID, FormProvoider.GetCurTabPage(ItemID), pageText, pageText.Capacity); this.txtCurTabPage.Text = pageText.ToString(); } }