Question

我正在使用wpf在.net framework 4.0中开发我的项目。以下是水晶报表查看器的XAML代码。

<Window x:Class="KhataBahi.GenerateReports"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
        xmlns:my="clr-namespace:SAPBusinessObjects.WPF.Viewer;assembly=SAPBusinessObjects.WPF.Viewer"
        Title="GenerateReports" Height="600" Width="550">
    <Grid Margin="0,0,2,-1">
        <Button x:Name="Back" Content="Back" HorizontalAlignment="Left" Height="38" Margin="198,522,0,0" VerticalAlignment="Top" Width="115" Click="Back_Click"/>
        <my:CrystalReportsViewer x:Name="KhataBahiAMReportsViewer" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="490"/>

    </Grid>

但是，它在InitializeComponent（）;

中给出以下异常

在寻找这个问题的解决方案时，有人建议发生这种情况，因为你必须明确地告诉编译器支持旧的.Net dll进入.Net 4.0运行时。所以，我将以下内容添加到我的app.config文件中

<startup useLegacyV2RuntimeActivationPolicy="true" >
    <supportedRuntime version= "v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>

但编译器总是显示这样的消息

所以，我进一步转到dotnetconfig40.xsd的属性并将启动编辑为

<xs:element name="startup" vs:help="configuration/startup">
    <xs:complexType>
        <xs:choice minOccurs="1" maxOccurs="1">
            <xs:element name="requiredRuntime" vs:help="configuration/startup/requiredRuntime">
                <xs:complexType>
                    <xs:attribute name="version" type="xs:string" use="optional" />
                    <xs:attribute name="safemode" type="xs:boolean" use="optional" />
                </xs:complexType>
            </xs:element>
            <xs:element name="supportedRuntime" minOccurs="1" maxOccurs="unbounded" vs:help="configuration/startup/supportedRuntime">
                <xs:complexType>
                    <xs:attribute name="version" type="xs:string" use="optional" />
                    <xs:attribute name="sku" type="xs:string" use="optional" />
                </xs:complexType>
            </xs:element>
        </xs:choice>
        <xs:attribute name="useLegacyV2RuntimeActivationPolicy" type="xs:boolean" use="optional" />
        <!-- see http://msdn.microsoft.com/en-us/library/bbx34a2h.aspx -->
    </xs:complexType>
</xs:element>

这删除了警告，但例外情况持续存在。我甚至尝试在app.config

中显式绑定程序集

<runtime>
    <assemblyBinding xmlns ="clr-namespace:SAPBusinessObjects.WPF.Viewer;assembly=SAPBusinessObjects.WPF.Viewer">
      <probing privatePath="C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86"/>
    </assemblyBinding>
  </runtime>

但是，没有运气。请提出解决方案。

Answer 1

" "的命名空间中没有x。另外，请检查内部异常

<Window x:Class="KhataBahi.GenerateReports"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:my="clr-namespace:SAPBusinessObjects.WPF.Viewer;assembly=SAPBusinessObjects.WPF.Viewer"
    Title="GenerateReports" Height="600" Width="550">
<Grid Margin="0,0,2,-1">
    <Button x:Name="Back" Content="Back" HorizontalAlignment="Left" Height="38" Margin="198,522,0,0" VerticalAlignment="Top" Width="115" Click="Back_Click"/>
    <my:CrystalReportsViewer x:Name="KhataBahiAMReportsViewer" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="490"/>
</Grid>
</Window>

在InitializeComponent（）中未处理XAMLParseException

1 个答案: