dotnet / dotnet/dotnet-api-docs

ItemContainerGenerator is null

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area-WPF dotnet-api/prod Pri2 untriaged
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Description

I try to access `ItemContainerGenerator` in `ArrangeOverride`. But it is null. The documentation does not mentions when the property can be called.

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#### Document Details

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* ID: af010f32-d12c-cd88-8a48-abebb8704246
* Version Independent ID: 2e40c2b5-0fc8-726f-674e-a53d4dfd9072
* Content: [VirtualizingPanel.ItemContainerGenerator Property (System.Windows.Controls)](https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.virtualizingpanel.itemcontainergenerator?f1url=https%3A%2F%2Fmsdn.microsoft.com%2Fquery%2Fdev15.query%3FappId%3DDev15IDEF1%26l%3DEN-US%26k%3Dk(System.Windows.Controls.VirtualizingPanel.ItemContainerGenerator);k(TargetFrameworkMoniker-.NETFramework,Version%3Dv4.7.2);k(DevLang-csharp)%26rd%3Dtrue&view=netframework-4.7.2)
* Content Source: [xml/System.Windows.Controls/VirtualizingPanel.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System.Windows.Controls/VirtualizingPanel.xml)
* Product: **dotnet-api**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnetcontent**

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