30 lines
853 B
Plaintext
30 lines
853 B
Plaintext
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When an assembly uses Windows Forms (classes and interfaces from the <code>System.Windows.Forms</code> namespace) its entry point should be marked with the <code>STAThreadAttribute</code> to indicate that the threading model should be "Single-Threaded Apartment" (STA) which is the only one supported by Windows Forms.
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This rule raises an issue when the entry point (<code>Shared Sub Main</code> method) of an assembly using Windows Forms is not marked as STA.
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== Noncompliant Code Example
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----
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Imports System.Windows.Forms
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Public Class Foo
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Shared Sub Main()
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Dim winForm As Form = New Form
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Application.Run(winForm)
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End Sub
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End Class
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----
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== Compliant Solution
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----
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Imports System.Windows.Forms
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Public Class Foo
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<STAThread()> Shared Sub Main()
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Dim winForm As Form = New Form
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Application.Run(winForm)
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End Sub
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End Class
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----
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