graptolite's Dev

今天再可停靠窗口进行点击按钮从而再DataGrid中上传数据时，发现多次上传会出现问题某个 ItemsControl 与它的项源不一致,后来再查问题时发现是因为由于有多线程异常导致的问题。原因应该是可停靠面板与Revit本身时两个进程，再主进程与窗口之间进行数据传递导致进程错误，从而引发的问题。 1234567891011private ObservableCollection<ExternalProperity.ProjectMessageClass> _messages = new ObservableCollection<ExternalProperity.ProjectMessageClass>();void UpdateItems(ExternalProperity.ProjectMessageClass message) { Dispatcher.BeginInvoke(DispatcherPriority.Background, new ParameterizedThrea...

When clicking button in dockable window to upload data in DataGrid today, found that multiple uploads will cause problem An ItemsControl is inconsistent with its item source. Later checking problem found it was due to multi-threading exception causing the problem.Reason should be dockable pane and Revit itself are two processes. Data passing between main process and window caused process error, thus triggering the problem. 1234567891011private ObservableCollection<ExternalProperity.Project...

Get Enum Value from String1var em = (ChooseEnum) Enum.Parse( typeof(ChooseEnum), desc); Get DescriptionAttribute from Enum Value12345678910111213141516171819public static string ConvertToSql(Enum value) { Type enumType = value.GetType(); string name = Enum.GetName(enumType, value); if (name != null) { FieldInfo fieldInfo = enumType.GetField(name); if (fieldInfo != null) { D...

根据字符串获得枚举值1var em = (ChooseEnum) Enum.Parse( typeof(ChooseEnum), desc); 根据枚举值获得DescriptionAttribute12345678910111213141516171819public static string ConvertToSql(Enum value) { Type enumType = value.GetType(); string name = Enum.GetName(enumType, value); if (name != null) { FieldInfo fieldInfo = enumType.GetField(name); if (fieldInfo != null) { DescriptionAttribute attribute...

今天使用winform创建datagridview其中绑定了combox数据 1234name.DataPropertyName = "PropertyName"; name.DisplayMember = "pn_name"; name.ValueMember = "pn_id"; name.DataSource = GetNames().Tables[0]; 项目报错：无法对设置了 DataSource 的组合框排序。请使用基础数据模型对数据排序对照多个博客发现自己的赋值并没有问题，看到最后一句使用使用基础数据，便点开编辑列发现设置sorted为true设置为false后错误消失

Today used winform to create datagridview which bound combox data 1234name.DataPropertyName = "PropertyName"; name.DisplayMember = "pn_name"; name.ValueMember = "pn_id"; name.DataSource = GetNames().Tables[0]; Project reported error: Cannot sort ComboBox with DataSource set. Please use underlying data model to sort dataCompared multiple blogs found my assignment has no problem, saw last sentence use use underlying data, then clicked ...

Idling&ExternalEventIdling Event Idling event refers to executing commands when revit has no operation TheBuildingCoder explanation code 12345678910111213141516171819202122public static void IdlingHandler(object sender, Autodesk.Revit.UI.Events.IdlingEventArgs args) { UIApplication uiapp = sender as UIApplication; if (uiapp != null) { Autodesk.Revit.UI.UIDocument uidoc = uiapp.ActiveUIDocument; Autodesk.Revit...

Idling&ExternalEvent 空闲事件与外部事件空闲事件 空闲事件是指在revit无操作时执行命令 TheBuildingCoder解释 code 12345678910111213141516171819202122public static void IdlingHandler(object sender, Autodesk.Revit.UI.Events.IdlingEventArgs args) { UIApplication uiapp = sender as UIApplication; if (uiapp != null) { Autodesk.Revit.UI.UIDocument uidoc = uiapp.ActiveUIDocument; Autodesk.Revit.DB.Document doc = uidoc.Document; if (uid...

Today when retrieving room separator lines, found if wall middle end?? has connection with other walls, Will break room separator line, can see room boundary at this location becomes five segmentsItself does not have much impact, but if we click ElementID inside Line to check, will find Element duplicate problem. If developer performs extraction judgment of duplicate line segments here and sets ID as Key, will cause problem of missing line segments==Line segment 4—ID==...

今天在检索房间分隔线时，发现如果墙体中端??与其他墙体有连接，会将房间分隔线断开，可以看到此处位置房间边界变为五段本身并没有什么太大的影响，但是如果我们点开里面Line里面的ElementID进行查看时，会发现Element重复的问题，如果开发者在此处进行重复线段的提起那判断并将ID设置Key会出现少线段的问题==线段4—ID====线段五—ID==

I didn’t complete all the exercises, just recorded a few where the results were uncertain or unexpected.Since I hadn’t used IDEA before, I wasted a lot of time configuring the IDE for debugging. Algorithms 4th EditionAlgorithm Chapter 1Problem Summary:Retrieve user input “[()]{}{[()()]}” and match the corresponding symbols. Output false if the symbols cannot be matched. Approach:Referencing the arithmetic expression evaluation mentioned earlier in the book (P79), create a push-down stack lops...

课后题并没有全部做,只是挑出几个无法确定或不能想到结果的进行记录因为之前没有使用过IDEA导致浪费很多时间进行IDE的配置用户调试 算法第四版算法第一章题目概要:检索用户输入”[()]{}{[()()]}”进行相应符号的配对,如果符号无法匹配输出false思路,参考之前书中提到过的算术表达式求值(P79) 通过创建下压栈lops进行记录左侧符号,包含[ { (,如果在读取语句中遇到右侧符号] } ),lops.pop()弹出栈上最上面的值,如果不是左右匹配则输出错误,直至全部循环结束 == 由于jar包里面的类加上IDE使用不熟悉,所以没有进行语句的全部录入并拆解 == code12345678910111213141516171819202122232425262728293031323334353637383940414243public class MainProject { public static void main(String[] args) { StdOut.println...

Reference Links:WPF-15: Use of AutoCompleteBox (Implement Dropdown List)WPF: AutoCompleteBox, an autocomplete text boxIf fail to load assembly occurs, rely on this answer Preparation:Download WpfToolKit.dll, System.Windows.Controls.Input.Toolkit.dll or install via NuGet search, download link is in the first blog. Content:FrontendImplement auto-completion or smart selection function via wpftool framework.Add in frontend:xmlns:toolkit="clr-namespace:System.Windows.Controls;assembly=System....

参考链接：WPF-15：AutoCompleteBox的使用(实现下拉列表)WPF: AutoCompleteBox, an autocomplete text box如果出现未能加载程序集，可以参照这篇回答 准备：WpfToolKit.dll,System.Windows.Controls.Input.Toolkit.dll下载或通过nuget搜索安装，下载链接在第一个博客中 内容：前端通过wpftool框架实现自动补全信息或智能选择的功能在前端添加xmlns:toolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Input.Toolkit"在窗口内实现AutoCompleteBox 1234567891011<toolkit:AutoCompleteBox x:Name="searchTextBox" Grid.Row="1" ValueMemberPath="SerchString" ...

OneSaw a case in C++ primerplus Chapter 6 Branching Statements, 12345678910111213141516171819202122232425262728293031 char ch; cout << "Typr , and I shell repeat.\n"; cin.get(ch); while (ch != '.') { if (ch == '\n') cout << ch; else cout << ch +1; cin.get(ch); } cout << "\n Please excuse thr slight confusion.\n";``` When we replace `cout<<ch+1` with `cout<<++ch`, two different results appear:- ch+1![...

一C++ primerplus第六章分支语句是看到一个案例, 1234567891011121314151617181920212223242526272829 char ch; cout << "Typr , and I shell repeat.\n"; cin.get(ch); while (ch != '.') { if (ch == '\n') cout << ch; else cout << ch +1; cin.get(ch); } cout << "\n Please excuse thr slight confusion.\n";``` 其中我们将``cout<<ch+1``替换为``cout<<++ch``之后会出现两个不同的- ch+1![ch+1](https://cdn.bimath.com/blog/pg/d46311f0bbc55550d0a106a24e1eee3...

select column_name from information_schema.`COLUMNS` where table_schema='recheck_model' and table_name = 'problem_model';调用information_schema中的columns视图，使用where语句将自己的数据库和数据表的名称

select column_name from information_schema.COLUMNS where table_schema='recheck_model' and table_name = 'problem_model';Call the columns view in information_schema, use where statement to specify your database and data table name.

Found big shot solving vs2017 problem, found this is bug of mysql itself, need to install specific version of mysql-connect-net and mysql-connect-netSolution

找到大佬在解决vs2017的问题，发现这是mysql本身的bug，需要安装特定版本的mysql-connect-net和mysql-connect-net解决方案