Question

我正在将一些代码从VB.NET迁移到C＃（3.5）。

我发现了以下结构：

Public Event DataLoaded(ByVal sender As Object, ByVal e As EventArgs)

Protected Sub Mag_Button_Load_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Mag_Button_Load.Click
[..]
        RaiseEvent DataLoaded(Me, EventArgs.Empty)
End Sub
[..]

'Other Class
Private Sub LoadData(ByVal sender As Object, ByVal e As System.EventArgs) Handles oData.DataLoaded
[..]
End Sub

将此类行为转换为C＃的最简单方法是什么？

Answer 1

我建议使用Telerik Code Converter作为开头。

C＃没有像VB.NET那样通过“Handles”关键字轻松自动附加事件处理程序。

//EventHandler declaration
public event EventHandler  DataLoaded;
protected void Mag_Button_Load_Click(object sender, EventArgs e)
{

    //Raise Event
    if (DataLoaded != null) {
        DataLoaded(this, EventArgs.Empty);
    }
}

此外，您需要将事件处理程序分配给对象，如下所示：

Button1.Click += Button1_Click;

protected void Button1_Click(object sender, EventArgs e)
{
  //do something.
}

然而，C＃确实具有这样做的简洁能力：

Button1.Click += (sender, e)=>
{
    //do something
}

将“Handles”从VB.NET迁移到C＃

1 个答案: