I'm migrating some code from VB.NET to C# (3.5).
I find structures like:
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
What is the most straightforward way to translate such behaviour to C#?
I recommend using the Telerik Code Converter as a start.
C# does not have that easy automatic attaching of event handlers by means of the "Handles" keyword like VB.NET does.
//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);
}
}
Also, You need to assign your event handlers to the objects like this:
Button1.Click += Button1_Click;
protected void Button1_Click(object sender, EventArgs e)
{
//do something.
}
However C# does have the succinct ability of doing this as well:
Button1.Click += (sender, e)=>
{
//do something
}
来源:https://stackoverflow.com/questions/794332/migrating-handles-from-vb-net-to-c-sharp