Connection state MySql Connector/NET

I'm using the latest stable MySql Connector/NET 6.5.4.0. I open a connection to a MySQL database. In the C# code, the Connection.State property is Open . I do some magic stuf, and while I'm doing that, I kill the connection server side. However, in the code the State is still Open . I ran into this problem because I save instances of my database class in a static variable per sessi

连接状态MySql连接器/ NET

我正在使用最新的稳定MySql连接器/ NET 6.5.4.0。 我打开一个到MySQL数据库的连接。 在C#代码中, Connection.State属性是Open 。 我做了一些神奇的stuf,而当我这样做时,我终止了连接服务器端。 但是,在国家代码中,国家仍然是Open 。 我遇到了这个问题,因为我将每个会话的静态变量(Dictionary)保存为我的数据库类的实例。 如果用户执行请求,则从该变量中提取数据库类,并向其发出查询。 但是,如果连接关闭服

C# with MySQL through Connector/NET

I'm developing CMS application in C#(4.0 Framework) which connects to MySQL database (5.0.95) on remote server by MySQL Connector (6.5.4). I have problem with executing queries. eg My connection string: "Server=" + Options.DbServer + ";Database="+ Options.Database +";Uid=" + Options.DbUser + ";Pwd=" + Options.DbPassword + ";CharSet=utf8; Connect Timeout=30;"; I have static class which m

C#与MySQL通过Connector / NET

我正在使用C#(4.0 Framework)开发CMS应用程序,它通过MySQL Connector(6.5.4)连接到远程服务器上的MySQL数据库(5.0.95)。 我在执行查询时遇到问题。 例如我的连接字符串: "Server=" + Options.DbServer + ";Database="+ Options.Database +";Uid=" + Options.DbUser + ";Pwd=" + Options.DbPassword + ";CharSet=utf8; Connect Timeout=30;"; 我有管理数据库相关的东西的静态类,并在那里我有私人成员_connection

.NET MySQL Connector Conflicting DbProviderFactories

I'm using the .NET MySQL Connector with Entity Framework 4, and everything worked great but I wanted to package the MySQL client DLL files with my application when deployed on servers so we don't have to worry about installing mysql on each server, each application will just have the correct copy that it needs. To make this possible, I made sure the MySQL references had "Copy Local

.NET MySQL连接器冲突的DbProviderFactories

我在实体框架4中使用.NET MySQL连接器,并且一切运行良好,但是我想在部署到服务器上时将我的应用程序打包为MySQL客户端DLL文件,因此我们不必担心在每台服务器上安装MySQL,每个应用程序将只需要它所需的正确副本。 为了做到这一点,我确保MySQL引用有“复制本地”设置,以便将它们复制到bin文件夹并将以下内容添加到我的app.config中: <system.data> <DbProviderFactories> <add name="MySQL Data P

Bind two lists to combobox, one only for suggestions

I'm creating a program for birthday notification and also editor to add celebrants into "database". Editor works with 3 comboboxes - one for day, month and year. Current situation is that user can use numeric keyboard to set day and year, but in case of month he must write name of the month or select one item from the roll menu with mouse. An ideal situation would be that user

将两个列表绑定到组合框,其中一个仅用于提示

我正在创建一个生日通知程序,同时也是一个编辑器,可以将庆典添加到“数据库”中。 编辑器可以使用3个组合框 - 一个用于日,月和年。 目前的情况是,用户可以使用数字键盘来设置日期和年份,但是在每月的情况下,他必须写出月份的名称或使用鼠标从滚动菜单中选择一个项目。 一个理想的情况是用户只能使用制表符(这是由TabIndex解决)和数字键盘 - 月份ComboBox后面的建议将基于两个(以某种方式连接)列表 - 月名称(1月,2

How to disable combox dropdown when user enters text into the combox

I have a simple combobox in c# forms which is populated from an array. I have set AutoCompleteMode to SuggestAppend and AutoCompleteSource to ListItems. This allows me to filter through the list quickly by typing a string into the combobox and matching items are displayed as I type along. This works great. However, when the drop down list is open and I start typing, the filtered list appear

当用户将文本输入到combox中时如何禁用combox下拉菜单

我有一个简单的组合框在C#表单中,从数组中填充。 我已将AutoCompleteMode设置为SuggestAppend并将AutoCompleteSource设置为ListItems。 这使我可以通过在组合框中输入一个字符串来快速筛选列表,并在我输入时显示匹配的项目。 这很好。 但是,当下拉列表打开并开始输入时,已过滤列表会显示在下拉列表的顶部,但我无法从已过滤列表中进行选择,而只能从下拉列表中进行选择。 如何在用户在组合框中输入字符时立即禁用下

allow typed value OR autocomplete

I'm developing a WinForms app in C# / VS2010. In two places I've a requirement to bind a ComboBox to data table row items (lets call the table 'updateTable'). Users can input any text here. However, to assist users, the ComboBox list is populated from a different table (lets call it 'lookupTable') with SuggestAppend offering values that might be used. I have this work

允许输入值或自动完成

我正在C#/ VS2010中开发一个WinForms应用程序。 在两个地方,我需要将ComboBox绑定到数据表行项目(让我们调用表'updateTable')。 用户可以在这里输入任何文字。 但是,为了帮助用户,ComboBox列表由不同的表格填充(让我们称之为'lookupTable'),并使用SuggestAppend提供可能使用的值。 通过表单设计器设置以下值,我可以在自由组合框中完美地工作: Databindings = updateTable fieldname 数据源=

ComboBox.Text = null string instead of actual displayed string

Disclaimer - I've only been using C# for about a week now, so hopefully this isn't a n00b question. I did look around, but was unable to find a solution that worked, including the results from this thread. I have a combobox on a Windows form. The combobox's data is populated from an Access database. The relevant properties that I have set are - AutoCompleteMode = Append; AutoCom

ComboBox.Text =空字符串,而不是实际显示的字符串

免责声明 - 我现在只使用C#大约一周,所以希望这不是一个问题。 我环顾四周,但无法找到解决方案,包括这个线程的结果。 我在Windows窗体上有一个组合框。 组合框的数据从Access数据库填充。 我设置的相关属性是 - AutoCompleteMode = Append; AutoCompleteSource = ListItems; DropDownStyle = DropDown。 用户必须能够输入组合框并自动完成,因此DropDownList的DropDownStyle将不起作用。 而不是使用默认的下拉箭头

SuggestAppend Combobox shows doesnt show duplicate names (if exists)

I have a combobox of Names. There can be person with similar name. Now if I set AutoCompleteMode Property of ComboBox to SuggestAppend and if there are two records with same name, the SuggestAppend DropDown list shows only the first value (name). Actual List: Notice two Ratan Tata names here Suggest Append: When I type R in comboBox, it shows only one value of RatanTata So now I get t

SuggestAppend Combobox显示不显示重复的名称(如果存在)

我有名称的组合框。 可以有名字相似的人。 现在,如果将ComboBox的AutoCompleteMode属性设置为SuggestAppend,并且如果有两个具有相同名称的记录,则SuggestAppend DropDown列表仅显示第一个值(名称)。 实际列表: 在这里注意两个Ratan Tata名字 建议追加: 当我在comboBox中输入R时,它只显示RatanTata一个值 所以现在我得到了两个问题。 Problem 1:如上所述,我们在SuggestAppend DropDownlist中只看到一个名

How to bind a List<string> to a DataGridView control?

I have a simple List<string> and I'd like it to be displayed in a DataGridView column. If the list would contain more complex objects, simply would establish the list as the value of its DataSource property. But when doing this: myDataGridView.DataSource = myStringList; I get a column called Length and the strings' lengths are displayed. How to display the actual string valu

如何将List <string>绑定到DataGridView控件?

我有一个简单的List<string> ,我希望它显示在DataGridView列中。 如果列表包含更复杂的对象,则只需将该列表建立为其DataSource属性的值即可。 但是当这样做时: myDataGridView.DataSource = myStringList; 我得到一个名为Length的列,并显示字符串的长度。 如何在列中显示列表中的实际字符串值? 那是因为DataGridView查找包含对象的属性。 对于字符串,只有一个属性 - 长度。 所以,你需要一个这样的字符

LDAP query for users and computers in "Domain Computers" group

I'm trying to build some LDAP query using PowerShell or C# to search for a certain user or computer in the "Domain Computers" predefined group. I know that it is not a regular group. It is possible to separate that query as follows: For a computer in the "Domain Computers" group: $strFilter = "(&(objectClass=computer)(primaryGroupID=515)(name=MyPC))" For a user

“域计算机”组中的用户和计算机的LDAP查询

我试图使用PowerShell或C#构建一些LDAP查询来搜索“域计算机”预定义组中的某个用户或计算机。 我知道这不是一个普通的团体。 可以将该查询分隔如下: 对于“域计算机”组中的计算机: $strFilter = "(&(objectClass=computer)(primaryGroupID=515)(name=MyPC))" 对于“域用户”组中的用户: $strFilter = "(&(objectClass=user)(primaryGroupID=515)(name=MyUser))" 但由于某些限制,我想查找另一个查询。 使用A