private void button2_Click(object sender, EventArgs e) { string database = txt_database.Text.Trim(); string root = @txt_saveurl.Text.Trim(); string contents = null; contents += DateTime.Now.ToString("yyyy.MM.dd-HH:mm:ss:"); contents += "创建数据库" + database + ","; if (root != string.Empty) { if (database != "") { if (!CreateDataBase.boolDataExists(database)) { if (CreateDataBase.CreateDataBaseDB(database, root)) { MessageBox.Show("创建成功!"); BindDropDownList(); contents += "创建成功!"; } else { MessageBox.Show("发生错误!"); contents += "发生错误!"; } } else { MessageBox.Show("已有同名数据库!"); contents += "已有同名数据库!"; } ouputtext(contents); } else { this.txt_database.Focus(); } readtextfrompath(); } else { MessageBox.Show("尚未选择路径!"); } }