What would this line of C# using Lambda expression be in VB.Net?
string s = blockRenderer.Capture(() => RenderPartialExtensions.RenderPartial(h, userControl, viewData));
Something with function of - but I can't figure out exactly how...
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4 Answers
It should be something like this:
Dim s As String = blockRenderer.Capture(Function() RenderPartialExtensions.RenderPartial (h, userControl, viewData))
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Check out this online C# to VB.NET converter. It doesn't always get things perfect, but it does a pretty good job all the times I've used it.
Dim s As String = blockRenderer.Capture(Function() RenderPartialExtensions.RenderPartial(h, userControl, viewData))
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Dim s As String = _
blockRenderer.Capture( _
Function() RenderPartialExtensions.RenderPartial(h, userControl, viewData) _
)
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Lambda Expressions in VB.NET need to have a return value, the solution is a wrapper method.
Public Shared Function RenderPartialToString(ByVal userControl As String, ByVal viewData As Object, ByVal tempData As Object, ByVal controllerContext As ControllerContext) As String
Dim h As New HtmlHelper(New ViewContext(controllerContext, New WebFormView("omg"), viewData, tempData), New ViewPage())
Dim blockRenderer As New MvcContrib.UI.BlockRenderer(controllerContext.HttpContext)
Dim s = blockRenderer.Capture(New Action(Function() renderPartialLambda(h, userControl, viewData)))
Return s
End Function
Private Shared Function renderPartialLambda(ByVal html As HtmlHelper, ByVal userControl As String, ByVal viewData As Object)
RenderPartialExtensions.RenderPartial(html, userControl, viewData)
Return Nothing
End Function
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