如何在Visual Studio 2010工具箱中取消隐藏Crystal Report Viewer？

Question

我有Visual Studio 2010与SAP Crystal Report，但我看不到 Visual Studio的工具箱中的Crystal Report Viewer项目。我如何取消隐藏或添加该工具箱项目？

Answer 1

转到项目/属性，然后在目标框架上，从下拉列表中选择.NET Framework 4。

Answer 2

您需要先更改Framwork到.NET Framwork 4.0 链接http://www.aspsnippets.com/Articles/Crystal-Report-Viewer-missing-from-ToolBox-in-Visual-Studio-2010.aspx
您还可以在运行时创建的Crystal Report ...

[In VB.Net] 

Imports CrystalDecisions.Windows.Forms 

Private Sub CrystalView_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
    Try 
     Dim crv As New CrystalReportViewer 
     With crv 
      .Dock = DockStyle.Fill 
     End With 
     Me.Controls.Add(crv) 
    Catch ex As Exception 
     MsgBox(ex.Message) 
    End Try 
End Sub 

[In C#] 
using CrystalDecisions.Windows.Forms; 
public class CrystalView 
{ 
    private void CrystalView_Load(System.Object sender, System.EventArgs e) 
    { 
     try { 
      CrystalReportViewer crv = new CrystalReportViewer(); 
      crv.Dock = DockStyle.Fill; 
      crv.EnableDrillDown = false; 
      this.Controls.Add(crv); 
     } catch (Exception ex) { 
      MessageBox.Show(ex.Message,"Hello"); 
     } 
    } 
    public CrystalView() 
    { 
     Load += CrystalView_Load; 
    } 
} 

在你的WinForm的水晶Report Viewer is Visible ...