Aside from the Microsoft documentation, is there a good introduction and tutorial to the Microsoft Reactive (Rx) framework? Also, what is a good example (with code) that Reactive makes easier of a programming problem that is challenging to solve using conventional asynchronous coding techniques? UPDATE : The blog posts below have been superseded by my online book www.IntroToRx.com. It is a c
除了微软的文档，有没有一个很好的介绍和微软反应（Rx）框架的教程？ 另外，Reactive是一个很好的例子（带代码），使得使用传统异步编码技术难以解决的编程问题更容易解决。 更新 ：下面的博客文章已被我的在线图书www.IntroToRx.com取代。 这是一本全面免费的19章书。 你可以在网上浏览它，或者下载你的kindle的mobi版本。 你也可以从亚马逊直接从微软收费（约99c / 77p）。 如果本书不符合您的需求或期望，请告诉我（
I have a problem with the selected value of a dropDown. The code working perfectly fine, except when I change the IE compatibility mode, the drop down don't keep the selected value and come back to the first item and i can't make it work anymore. When I change something on the server, files or configuration in IIS, everything is working fine until I Change de compatibility mode again.
我对dropDown的选定值有问题。 代码工作得很好，除了当我改变IE兼容模式时，下拉不会保留选定的值并返回到第一项，我不能再使它工作了。 当我更改服务器上的某些内容，IIS中的文件或配置时，一切正常，直到我再次更改de兼容性模式。 我试着把选定的值放在会话中以保持它，但它不工作。 我真的尝试了一切，事先感谢。 这里是asp代码： <asp:DropDownList ID="ddlFiltre" runat="server" AutoPostBack="True" Enable
I have 7 items in my dropdown list like <asp:DropDownList ID="DdlSortBy" runat="server" OnSelectedIndexChanged="DdlSortBy_SelectedIndexChanged" AutoPostBack="True"> <asp:ListItem Value="0">Case 1</asp:ListItem> <asp:ListItem Value="1">Case 2</asp:ListItem> <asp:ListItem Value="2">Case 3</asp:ListItem> <asp:ListItem Value="3">Cas
我的下拉列表中有7个项目 <asp:DropDownList ID="DdlSortBy" runat="server" OnSelectedIndexChanged="DdlSortBy_SelectedIndexChanged" AutoPostBack="True"> <asp:ListItem Value="0">Case 1</asp:ListItem> <asp:ListItem Value="1">Case 2</asp:ListItem> <asp:ListItem Value="2">Case 3</asp:ListItem> <asp:ListItem Value="3">Case 4</asp:List
I have a dropdownlist control with a selectedindexchanged event that fires correctly. However, when you select an item from the list the index value that is returned to the selectedindexchanged event does not change; the list box pops back tot he first item in the list. Any help would be appreciated. ~susan~ ASP DROP DOWN LIST CONTROL : <asp:DropDownList ID="CuisineList" runat="server"
我有一个dropdownlist控件，可以正确触发selectedindexchanged事件。 但是，从列表中选择项目时，返回到selectedindexchanged事件的索引值不会更改; 列表框会弹出列表中的第一项。 任何帮助，将不胜感激。 〜苏珊〜 ASP下降列表控制 ： <asp:DropDownList ID="CuisineList" runat="server" Width="100" AutoPostBack = "true" onselectedindexchanged="CuisineList_SelectedIndexChanged" > </asp:DropDow
I have a problem with a dropdownlist that doesn't seem to "notice" when the selected index has changed. On the form it looks something like this: <asp:DropDownList ID="DDLResponsible" runat="server"></asp:DropDownList> On the form there is another dropdownlist and when the selected index changes in that one, this one is reloaded using javascript. This works fine. Bu
我遇到了下拉列表的问题，当选定的索引发生变化时，似乎并未“注意到”。 在窗体上它看起来像这样： <asp:DropDownList ID="DDLResponsible" runat="server"></asp:DropDownList> 在表单上还有另一个下拉列表，当选择的索引在那个下拉列表中更改时，将使用javascript重新加载此列表。 这工作正常。 但是，当我从这个列表中选择一个项目并按下窗体上的保存按钮时，所选值似乎不会改变。 我尝试使用AutoPostback
I want to prohibit reentrancy for large set of methods. for the single method works this code: bool _isInMyMethod; void MyMethod() { if (_isInMethod) throw new ReentrancyException(); _isInMethod = true; try { ...do something... } finally { _isInMethod = false; } } This is tedious to do it for every method. So I've used StackTrace
我想禁止大量方法的重入。 为单一的方法工作这个代码： bool _isInMyMethod; void MyMethod() { if (_isInMethod) throw new ReentrancyException(); _isInMethod = true; try { ...do something... } finally { _isInMethod = false; } } 对于每种方法来说这都很乏味。 所以我使用了StackTrace类： public static void ThrowIfReentrant() {
I am working on upgrading oracle database of a installed .Net application from 11g to 12c. I have upgraded the Oracle client to 12.1.0.2 and pointed the application to new database. When i was using one of the component i was seeing the error Error Message: Data provider internal error(-3000) [System.String] Error Stack: at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 er
我正在将已安装的.Net应用程序的oracle数据库从11g升级到12c。 我已将Oracle客户端升级到12.1.0.2，并将应用程序指向新的数据库。 当我使用其中一个组件时，我看到错误Error Message: Data provider internal error(-3000) [System.String] 错误堆栈：在Oracle.DataAccess.Client.OracleException.HandleError（Int32 errCode，OracleConnection conn，IntPtr opsErrCtx，OpoSqlValCtx * pOpoSqlValCtx，Object src，Strin
My application using TimesTen DB to store data. Below is my code to update data and return a updated row. conn = new OracleConnection("My Connection"); conn.Open(); OracleTransaction tran = conn.BeginTransaction(IsolationLevel.ReadCommitted); OracleCommand command = new OracleCommand(); command = new OracleCommand(@"DECLARE idNo NUMBER; BEGIN select id into idNo from " + prefix_db + @"tbl_requ
我的应用程序使用TimesTen DB来存储数据。 以下是我的代码来更新数据并返回更新的行。 conn = new OracleConnection("My Connection"); conn.Open(); OracleTransaction tran = conn.BeginTransaction(IsolationLevel.ReadCommitted); OracleCommand command = new OracleCommand(); command = new OracleCommand(@"DECLARE idNo NUMBER; BEGIN select id into idNo from " + prefix_db + @"tbl_request_in where upper(status
I am inserting record in Oracle table using ODP.NET Oracle.DataAccess.Client throug Asp.net c#. The oracle table is tblGroup and GROUPNAME varchar2,GROUPDETAILS varchar2 is column name but data is not inserting.I am using following code public void insertRecord(string StudentgroupName, string groupDetails) { using (OracleConnection con = GetConnection())
我使用ODP.NET Oracle.DataAccess.Client通过Asp.net c＃在Oracle表中插入记录。 oracle表是tblGroup和GROUPNAME varchar2，GROUPDETAILS varchar2是列名，但数据没有插入。我使用以下代码 public void insertRecord(string StudentgroupName, string groupDetails) { using (OracleConnection con = GetConnection()) { OracleCommand cmd = new OracleCo
this question can look like a clone of others, but I can't find a correct answer to this one. This is my scenario: I have a C# software called by webservices that need to write to an oracle database. In my test server no problems, it works like a charm, but, in another equal server it gives to me this error: Oracle.DataAccess.Client.OracleException at Oracle.DataAccess.Client.OracleExcept
这个问题可能看起来像其他人的克隆，但我找不到这个问题的正确答案。 这是我的场景：我有一个需要写入到oracle数据库的webservices调用的C＃软件。 在我的测试服务器中没有问题，它像一个魅力，但在另一个相同的服务器，它给了我这个错误： Oracle.DataAccess.Client上的Oracle.DataAccess.Client.OracleException.HandleErrorHelper（Int32 errCode，OracleConnection conn，IntPtr opsErrCtx，OpoSqlValCtx * pOpoSqlValCt