小编Dan*_*gne的帖子

我正试图找出一种方法来检查剃刀视图在测试中呈现的HTML.

我一直在看人们提出类似问题的帖子,但每一次,我都做不到.我得到的问题是视图引擎尝试加载.cshtml文件.它从函数中返回一个空引用异常.

[Test]
public void GetRazorViewEngine() {
    var _HttpContextBaseMock = new Mock<HttpContextBase>();
    var _HttpRequestMock = new Mock<HttpRequestBase>();
    var _HttpResponseMock = new Mock<HttpResponseBase>();
    _HttpContextBaseMock.SetupGet(x => x.Request).Returns(_HttpRequestMock.Object);
    _HttpContextBaseMock.SetupGet(x => x.Response).Returns(_HttpResponseMock.Object);

    var routeData = new RouteData();
    routeData.Values.Add("controller", "Home");
    routeData.Values.Add("action", "About");

    var controller = new HomeController();
    controller.ControllerContext = new 
    ControllerContext(_HttpContextBaseMock.Object,
                      routeData,
                      controller);
    controller.Url = new UrlHelper(new RequestContext(_HttpContextBaseMock.Object, routeData),
                                   new RouteCollection());


    var razorEngine = ViewEngines.Engines
                                 .Where(x => x.GetType() == typeof(System.Web.Mvc.RazorViewEngine))
                                 .FirstOrDefault();

    var path = "/Users/dan/Projects/Playground/MvcPlayground/Views/Home/About.cshtml";
    var master = "/Users/dan/Projects/Playground/MvcPlayground/Views/Shared/_Layout.cshtml";

    ViewEngineResult viewEngineResult = razorEngine.FindView(controller.ControllerContext,
                                                             path,
                                                             master, …

我正在使用MongoDB数据库.我知道当你将一个DateTime插入Mongo时,它会将它转换为UTC.但我正在进行单元测试,而我的Assert正在失败.

[TestMethod]
public void MongoDateConversion() {
    DateTime beforeInsert = DateTime.Now;
    DateTime afterInsert;

    Car entity = new Car {
        Name = "Putt putt",
        LastTimestamp = beforeInsert
    };

    // insert 'entity'
    // update 'entity' from the database

    afterInsert = entity.LastTimestamp.ToLocalTime();

    Assert.AreEqual(beforeInsert, afterInsert); // fails here
}

我一定错过了一些明显的东西.当我查看调试器时,我可以看到datetime的匹配,但断言仍然说他们没有(但他们这样做):

Result Message: Assert.AreEqual failed. Expected:<5/21/2015 8:27:04 PM>. Actual:<5/21/2015 8:27:04 PM>.

我在这里做错了什么想法？

编辑:

我想出了两个可能的解决方案,这两个解决方案都需要我记住做某事(这并不总是最好的依赖......):

一种是使用扩展方法来截断来自数据库的任何DateTime:

public static DateTime Truncate(this DateTime dateTime) {
    var timeSpan = TimeSpan.FromMilliseconds(1);
    var ticks = -(dateTime.Ticks % timeSpan.Ticks);
    return dateTime.AddTicks(ticks);
}

另一方面,在阅读 …

我无法找到一种从Web服务反序列化XML响应的方法.响应采用以下格式:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<providerDemographicsResponse xmlns="http://provapi.sys.test.com/provider/network/messages/providerDemographicsResponse/v1" xmlns:ns2="http://provapi.sys.test.com/provider/network/messages/providerAddress/v1" xmlns:ns3="http://provapi.sys.test.com/provider/network/messages/expandedProvider/v1" xmlns:ns4="http://provapi.sys.test.com/provider/network/messages/enrollmentDetails/v1" xmlns:ns5="http://provapi.sys.test.com/provider/network/messages/providerBusinessEntity/v1" xmlns:ns6="http://provapi.sys.test.com/provider/network/messages/providerNpoAssociation/v1" xmlns:ns7="http://provapi.sys.test.com/provider/network/messages/serviceAreaDetail/v1" xmlns:ns8="http://provapi.sys.test.com/provider/network/messages/networkProviderAddress/v1" xmlns:ns9="http://provapi.sys.test.com/provider/network/messages/delegationEntity/v1" xmlns:ns10="http://provapi.sys.test.com/provider/network/messages/providerSpecialty/v1" xmlns:ns11="http://provapi.sys.test.com/provider/network/messages/providerNpi/v1" xmlns:ns12="http://provapi.sys.test.com/provider/common/messages/metadata/v1">
  <ns12:metadata>
    <ns12:serviceReferenceId>test17-02-2016 16:05:47.000616</ns12:serviceReferenceId>
    <ns12:limit>1</ns12:limit>
    <ns12:offset>0</ns12:offset>
    <ns12:total>1</ns12:total>
    <ns12:outcome>
      <ns12:status>200</ns12:status>
      <ns12:message>Successful.</ns12:message>
      <ns12:code>200</ns12:code>
      <ns12:additionalDetails/>
    </ns12:outcome>
  </ns12:metadata>
  <data>
    <providerDemographics>
      <cpfProviderId>0000010</cpfProviderId>
      <effectiveDate>1980-01-01</effectiveDate>
      <terminationDate>9999-12-31</terminationDate>
      <provider-under-review-indicator>N</provider-under-review-indicator>
      <providerTypeDescription>Healthcare Organization</providerTypeDescription>
    </providerDemographics>
    <providerDemographics>
      <cpfProviderId>0000010</cpfProviderId>
      <effectiveDate>1980-01-01</effectiveDate>
      <terminationDate>9999-12-31</terminationDate>
      <provider-under-review-indicator>N</provider-under-review-indicator>
      <providerTypeDescription>Healthcare Organization</providerTypeDescription>
    </providerDemographics>
  </data>
</providerDemographicsResponse>

我有这个类来获取XML底部的providerDemographics列表:

public class ProviderDemographics {

    [XmlAttribute(AttributeName = "cpfProviderId")]
    public int CpfProviderId { get; set; }

    [XmlAttribute(AttributeName = "effectiveDate")]
    public DateTime EffectiveDate { get; set; }

    [XmlAttribute(AttributeName = "terminationDate")]
    public DateTime …

我知道在使用模型优先开发时,您可以使用t4模板生成的部分类来添加元数据.例如

public partial class Address
{        
    public int Id { get; set; }
    public string Street1 { get; set; }
    public string Street2 { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public string Zip { get; set; }
}

然后在一个单独的文件中,我做:

[MetadataType(typeof(AddressMetadata))]
public partial class Address {
}

internal sealed class AddressMetadata {

    [Display(Name = "Street")]
    public string Street1 { get; set; }

    [Display(Name = "Street (cont.)")]
    public string Street2 { …

使用以下DataTable:

    Dim d As New DataTable()
    d.Columns.Add("Product", GetType(System.String))
    d.Columns.Add("Value", GetType(System.Double))

    d.Rows.Add(New Object() {"OAP1", 100.0})
    d.Rows.Add(New Object() {"EPP4", 100})
    d.Rows.Add(New Object() {"OAP1", 150.25})
    d.Rows.Add(New Object() {"OAPIN", 200.0})

我正在尝试使用LINQ来识别是否存在多种类型的产品.在SQL中,这将工作如下:

SELECT Product FROM SOME_TABLE HAVING COUNT(*) > 1

我不能为我的生活弄明白如何在LINQ中做到这一点.我跟随的人做了这样的事:

    Dim q = From row In d.AsEnumerable()
            Group row By New { column1 = row("Product"), column2 = row("Value") }
            Into grp
            Where grp.Count() > 1
            Select row

    For Each item In q
        ' 'q' is not declared. It may be inaccessible due to its …

今天去Visual Studio 2010 Pro新建一个C++项目，然后编译，出现以下两个错误：

1   error : Required file "" is missing.    C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Platforms\Win32\Microsoft.Cpp.Win32.Targets   62  6   Test

2   IntelliSense: cannot open source file "SDKDDKVer.h" c:\users\champad\documents\applications\leadinghedge-rebuild\leadinghedge\test\targetver.h  8   1   Test

第一个错误指向Microsoft.Cpp.Win32.Targets文件中的这个标签：

<CL Condition="'%(ClCompile.PrecompiledHeader)' == 'Create' and '%(ClCompile.ExcludedFromBuild)'!='true'"
    BuildingInIDE                      ="$(BuildingInsideVisualStudio)"
    Sources                            ="@(ClCompile)"

    AdditionalIncludeDirectories       ="%(ClCompile.AdditionalIncludeDirectories)"
    AdditionalOptions                  ="%(ClCompile.AdditionalOptions)"
    AdditionalUsingDirectories         ="%(ClCompile.AdditionalUsingDirectories)"
    AssemblerListingLocation           ="%(ClCompile.AssemblerListingLocation)"
    AssemblerOutput                    ="%(ClCompile.AssemblerOutput)"
    BasicRuntimeChecks                 ="%(ClCompile.BasicRuntimeChecks)"
    BrowseInformation                  ="%(ClCompile.BrowseInformation)"
    BrowseInformationFile              ="%(ClCompile.BrowseInformationFile)"
    BufferSecurityCheck                ="%(ClCompile.BufferSecurityCheck)"
    CallingConvention                  ="%(ClCompile.CallingConvention)"
    CompileAsManaged                   ="%(ClCompile.CompileAsManaged)"
    CompileAs                          ="%(ClCompile.CompileAs)"
    DebugInformationFormat             ="%(ClCompile.DebugInformationFormat)"
    DisableLanguageExtensions          ="%(ClCompile.DisableLanguageExtensions)"
    DisableSpecificWarnings            ="%(ClCompile.DisableSpecificWarnings)"
    EnableEnhancedInstructionSet       ="%(ClCompile.EnableEnhancedInstructionSet)"
    EnableFiberSafeOptimizations       ="%(ClCompile.EnableFiberSafeOptimizations)"
    EnablePREfast                      ="%(ClCompile.EnablePREfast)"
    ErrorReporting                     ="%(ClCompile.ErrorReporting)" …

我有一个在 a 内ItemsControl显示一堆 的。这非常有效，除非我有一堆用户控件，然后溢出会呈现在屏幕外，并且我无法访问它。我的目标是让 WrapPanel 水平换行，但是一旦控件离开屏幕，就会显示滚动条，这似乎对我不起作用。UserControlWrapPanel

<ItemsControl ItemsSource="{Binding Servers, Mode=OneWay}">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel />
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>
    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <Border BorderBrush="Black" BorderThickness="1" Margin="5,5,5,5">
                <local:ServerControl DataContext="{Binding }" /> <!-- The actual UserControl -->
            </Border>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

当应用程序第一次启动时，这就是它的样子。如果应该查看 14 个盒子，您将看不到什么。WrapPanel 正在执行其工作，但它被渲染到窗口边界之外。

这显示了所有用户控件，但我必须扩展窗口才能看到它们。

任何帮助将不胜感激。

完整的 XAML：

<Window x:Class="ServerMonitor.Wpf.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:ServerMonitor.Wpf"
        xmlns:models="clr-namespace:ServerMonitor.Wpf.Models"
        xmlns:System="clr-namespace:System;assembly=mscorlib"
        Title="Leading Hedge Server Monitor" Height="350" Width="800">
    <Window.DataContext>
        <models:MainWindowViewModel>
            <models:MainWindowViewModel.MachineNames>
                <!-- Test Servers -->
                <System:String>T009</System:String>
                <System:String>T010</System:String>
                <System:String>T011</System:String>
                <System:String>T012</System:String>
            </models:MainWindowViewModel.MachineNames>
        </models:MainWindowViewModel>
    </Window.DataContext>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition …

我试图找出如何拉嵌嵌套的XML元素并将其转换为SQL中的表结果.WorkItem总是有一个组,但组字段可以嵌套N次.是否有一种简单的方法可以将字段拉出XML字段,如下所示:

declare @xml XML = '
<WorkItem>
  <Group Name="Base" >
    <Field FieldId="361" Name="Assigned To"  />
    <Field FieldId="362" Name="Stuff"  />
    <Group Name="Detail">
      <Field FieldId="363" Name="Assigned To 2" />
    </Group>
  </Group>
</WorkItem>'

declare @handle int
declare @status int

exec @status = sp_xml_preparedocument @handle output, @xml
select *
from openxml(@handle, 'WorkItem/Group/Field')
with (
    FieldId int,
    Name varchar(max)
)
exec sp_xml_removedocument @handle

我得到了什么:

361,Assigned To
362,Stuff

我期待的是:

361,Assigned To
362,Stuff
363,Assigned To 2

谢谢!

我正在使用 .NET Core 3.1 并尝试设置运行状况检查，但遇到了一个奇怪的问题，需要一些帮助。

当我访问基本运行状况检查 URL (https://localhost:5001/hc) 时，我得到以下信息：

{
  "status": "Healthy",
  "errors": [
    {
      "key": "AssessmentContext",
      "value": "Healthy"
    }
  ]
}

看起来不错！然而，当我尝试进入用户界面时，它说该应用程序不健康。

因此，它正确地提取了端点名称，但没有正确注册。

我的startup.cs 文件如下所示：

public void ConfigureServices(IServiceCollection services) {
    ...

    services
        .AddHealthChecks()
        .AddDbContextCheck<AssessmentContext>();

    services.AddHealthChecksUI(opt => {
        opt.SetEvaluationTimeInSeconds(30);
        opt.MaximumHistoryEntriesPerEndpoint(60);

        opt.AddHealthCheckEndpoint(name: "app", uri: "~/hc");
    }).AddInMemoryStorage();

}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env) {
    ...

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapHealthChecks("/hc", new HealthCheckOptions
        {
            Predicate = _ => true,
            ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse,
        });

        endpoints.MapHealthChecksUI(opt => {
            opt.UseRelativeApiPath = false;
            opt.UseRelativeResourcesPath = false;
            opt.AsideMenuOpened …

我正在使用OleDb填充数据表。我正在尝试使用参数化查询，但它似乎不适用于OleDbDataAdapter。有人有什么建议吗？

cmd.CommandText = "SELECT A,B,C,D FROM someTable WHERE A=@A AND D BETWEEN @D1 AND @D2";
cmd.Parameters.Add("@A", OleDbType.VarChar).Value = "1234567";
cmd.Parameters.Add("@D1", OleDbType.DBDate).Value = "02/01/2011";
cmd.Parameters.Add("@D2", OleDbType.DBDate).Value = "01/31/2012";

A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
System.Data.OleDb.OleDbException (0x80040E11): [DB2] SQL0206N  "@A" is not valid in the context where it is used.  SQLSTATE=42703

我没有为OleDbConnection,MySqlConnection,OdbcConnection和Db2Connection维护一些不同的数据库访问层,而是试图找出一种使用泛型的方法.但是,当我尝试编译代码时出现错误,当我尝试访问类的方法或属性时出错.

public class DatabaseConnector<CONNECTION> {
    private CONNECTION connection = default(CONNECTION);
    public bool IsConnected {
        get {
            return (
                this.connection != null &&
                // error on connection.State on the following two lines
                this.connection.State != System.Data.ConnectionState.Closed &&
                this.connection.State != System.Data.ConnectionState.Broken
            );
        }
    }
}

有没有办法解决？或者也许是另一个可以处理许多版本的类？