Question

我试图在WPF中使用VS2010附带的报表查看器。我创建了报告并使用它运行的Windows应用程序进行了相同的测试。然后我使用相同的参数集在WPF中使用相同的RDLC文件，但它失败了。我正在使用的代码如下MainWindow.xaml.cs

public MainWindow()
{
   ObjectModel DataObject = new ObjectModel();
   DataObject.SetEPSDetails();
   WindowsFormsHost host = new WindowsFormsHost();
   ReportViewer RptViewer = new ReportViewer();
   host.Child = RptViewer;
   Grid HostGrid = this.FindName("GrdRow") as Grid;
   HostGrid.Children.Add(host);

   RptViewer.ProcessingMode = ProcessingMode.Local;
   RptViewer.LocalReport.ReportEmbeddedResource = "RDLWPF.PrintPreview.rdlc";

   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("Payer", DataObject.Payer));
   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("ValueDate", DataObject.ValueDate));
   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("FileName", DataObject.FileName));
   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("Description", DataObject.Description));
   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("PrintedDate", DataObject.PrintDate));
   RptViewer.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter("FileLastUpdated", DataObject.FileLastUpdated));
   RptViewer.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("FileDetails", DataObject.EPSDetails));
   RptViewer.RefreshReport();
}

Xaml如下Mainwindow.Xaml

<Window x:Class="RDLWPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:viewer="clr-namespace:Microsoft.Reporting.WinForms;assembly=Microsoft.ReportViewer.WinForms"
        Title="MainWindow" Height="350" Width="525"  AllowsTransparency="False" >
    <Grid x:Name="GrdRow">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"></RowDefinition>
        </Grid.RowDefinitions>

    </Grid>

我刚刚获得空的XAML窗口。报告控件也不会显示。我知道我犯了一个错误，却找不到它是什么。有谁可以为我纠正这个问题。此外，如果有人可以在MVVM appraoch中向我发送代码示例，那也很棒

谢谢和问候卡塔斯

Answer 1

以下是我在我的WPF应用程序中显示SQL Report Viewer所做的工作：

1-添加对WindowsFormsIntegation的项目引用
2-添加项目引用到Microsoft.ReportViewer.Winforms
3-将项目引用添加到Microsoft.ReportViewer.Common

4-在我的视图模型中定义WindowsFormsHost

public MainWindowViewModel()
{
   ReportViewer reportViewer = new ReportViewer();
   _viewer.Child = reportViewer;
}

private WindowsFormsHost _viewer = new WindowsFormsHost();
public WindowsFormsHost Viewer
{
  get
  {
    return _viewer;
  }
  set
  {
    _viewer = value;
    NotifyPropertyChanged("Viewer");
  }
}

4-从视图中绑定对视图模型的引用

<Grid>
  <Grid.RowDefinitions>
    <RowDefinition/>
  </Grid.RowDefinitions>
  <ContentPresenter Grid.Row="0" Content="{Binding Viewer}" />
</Grid>

在WPF中访问SQL Server报表查看器控件

1 个答案: