Question

我正在将某些类从C#转换为VB.NET，但此行无法正确转换。我尝试了很少的在线转换器，但它们似乎没有用。

this.mGrid.RowDataBound += new GridViewRowEventHandler(RowDataBoundHandler);

转换后的VB.NET不起作用。

Me.mGrid.RowDataBound += New GridViewRowEventHandler(RowDataBoundHandler)

以下是我从中得到的两个错误。任何人都可以帮助我，因为我的大脑已经死了。

谢谢，

Error 4 Delegate 'System.Web.UI.WebControls.GridViewRowEventHandler' requires an 'AddressOf' expression or lambda expression as the only argument to its constructor. C:\My Projects\PMS\App_Code\GridViewHelper.vb 110 62 C:\My Projects\PMS\

Error 3 'Public Event RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event. C:\My Projects\PMS\App_Code\GridViewHelper.vb 110 9 C:\My Projects\PMS\

Answer 1

您无需在VB.NET中以编程方式注册事件处理程序。您可以使用aspx标记来声明事件处理程序（OnRowDataBound = "RowDataBoundHandler"）或使用Handles clause。您甚至可以使用一个控件，用逗号分隔它们。

Protected Sub GridView1_RowDataBound(sender As Object, e As GridViewRowEventArgs) _
    Handles GridView1.RowDataBound
End Sub

如果您想手动添加，请使用AddHandler：

AddHandler Me.GridView1.RowDataBound, AddressOf RowDataBoundHandler

Answer 2

如果要手动绑定事件，请尝试使用AddHandler：

AddHandler Me.mGrid.RowDataBound, AddressOf RowDataBoundHandler

或者您可以在ASPX标记中绑定事件：

<asp:GridView ... RowDataBound="RowDataBoundHandler" runat="server" />

或者使用Tim Schmelter的方法。

Answer 3

使用它代替，这是VB的方式。 VB使用AddHandler来标识事件，而AddressOf指向委托。

AddHandler mGrid.RowDataBound, AddressOf RowDataBoundHandler

从c＃转换一些代码到vb.net

3 个答案: