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                                  • I am using aCore 3.0 preview 9 Winforms project in Visual Studio 16.3.0 Preview 3.0. I get a NullReferenceException in the InitializeComponent() method of an XtraUserControl at this statement:

                                          this.grMain.MainView = this.vwMain;

                                    where grMain is a GridControl and vmMain is a GridView

                                    Here is a partial stack trace:

                                       at DevExpress.XtraGrid.GridControl.UpdateAccessibility()
                                       at DevExpress.XtraGrid.GridControl.SetDefaultView(BaseView view)
                                       at DevExpress.XtraGrid.GridControl.set_MainView(BaseView value)
                                       at SAPRINUtil.Views.TableView.InitializeComponent() in D:\Dev\Projects\SaprinUtil\SAPRINUtil

                                    Thank you
                                     

                                • Stas (DevExpress Support) 09.05.2019

                                  Hello,
                                  Thank you for taking your time to try out the 19.2 EAP version and reporting this issue to us.
                                  I was able to reproduce this issue and passed this ticket to our developers for further research. We will inform you as soon as we have any results.

                                1 Solution

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                                Fixed:

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                                • Kobus Herbst 09.09.2019

                                  I have installed and tried the hotfix but I still get the Null reference exception at:

                                     at DevExpress.XtraGrid.GridControl.UpdateAccessibility()
                                     at DevExpress.XtraGrid.GridControl.SetDefaultView(BaseView view)
                                     at DevExpress.XtraGrid.GridControl.set_MainView(BaseView value)
                                     at SAPRINUtil.Views.TableView.InitializeComponent() in D:\Dev\Projects\SaprinUtil\SAPRINUtil

                                • Kobus Herbst 09.10.2019

                                  What is the recommended combination of packages to use DevExpress with Winforms using .NET Core 3 preview 9. Do I use this hotfix 19.1.6 or do I use the 19.2 EAP? I am using the 19.2.1-ctp-19231 versions of DevExpress.WindowsDesktop.Core and DevExpress.WindowsDesktop.Win. What should I use with the hotfix?

                                • Stas (DevExpress Support) 09.10.2019

                                  Since version 19.2 isn't officially released yet, hotfixes for this version aren't available. A newer 19.2 version will be available via Nuget once it is released. If all goes in accordance with our plan, the next version (beta) will be released in a month.
                                   
                                   

                                • Mehmet KOLUKISA 09.18.2019

                                  "Install-Package DevExpress.WindowsDesktop.Win -Version 19.1.6"
                                  I tried, but it didn't work. I added Nuget.png. No version 19.1.6. 19.1.6 How to install? (DevExpress.WindowsDesktop.Win, DevExpress.WindowsDesktop.Core) I need help with installation. When will version 19.2 be corrected?  

                                • Stas (DevExpress Support) 09.18.2019

                                  Indeed, packages for version 19.2 only are available. I've also updated my comment. A newer 19.2 version will be available via Nuget once it is released. If all goes in accordance with our plan, the next version (beta) will be released in a month.

                                • Mehmet KOLUKISA 09.18.2019

                                  Can you offer a workaround for now?
                                  Can you give us information on how to install the nuget package in 19.1.6

                                • Stas (DevExpress Support) 09.19.2019

                                  Currently, there is no immediate workaround for this issue and the only solution here is to wait until version 19.2 is released.
                                  Returning to your second questions, since .Net Core isn't officially released yet, DevExpress .NetCore Nuget packages of version 19.1 aren't available for installation yet. Please accept my apologies for misleading you in my previous comments.

                                • Deena Christilda Samuel Christopher 10.07.2019

                                  Hi Stas,

                                  Is the fix available via nuget package now?

                                  Regards,
                                  Deena

                                • Stas (DevExpress Support) 10.08.2019

                                  The fix is included in the 19.2 Beta version. You can get the packages for this version using your own NuGet feed. Refer to Obtain Your NuGet Feed URL to learn how to obtain your own personal feed key and then to Setup Visual Studio's NuGet Package Manager to learn how to configure your personal NuGet feed.

                                • Deena Christilda Samuel Christopher 10.08.2019

                                  Great. Thank you.

                                  Regards,
                                  Deena