摘自一个国外的论坛。
First the Send.ascx
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Send.ascx.cs" Inherits="YourNamespace.Send" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%>
<table border="0" cellpadding="5" cellspacing="0">
<tr>
<td><asp:TextBox id="txtText" runat="server" CssClass="NormalTextbox"></asp:TextBox></td>
<td><asp:Button id="btnSend" runat="server" Text="Send" CssClass="CommandButton"></asp:Button></td>
</tr>
</table>
Then the Send.ascx.cs
namespace YourNamespace
{
//leaving out the standard using statements for brevities sake
//I prefer to qualify using statements to not have so much clutter in the latter parts of code
using DotNetNuke;
using DotNetNuke.Entities.Modules;
using DotNetNuke.Entities.Modules.Communications;
public class Send : PortalModuleBase, IModuleCommunicator //This is part of the key here
{
protected System.Web.UI.WebControls.TextBox txtText;
protected System.Web.UI.WebControls.Button btnSend;
public event ModuleCommunicationEventHandler ModuleCommunication; //Here's the implementation of the event, and the part that wasn't horribly intuitive.
//standard generated code omitted
private void btnSend_Click(object s, System.EventArgs e)
{
//create an instance of the ModuleCommunicationEventArgs and populate it with what you want to send.
ModuleCommunicationEventArgs oArgs = new ModuleCommunicationEventArgs();
oArgs.Text = txtText.Text;
oArgs.Sender = "Sender";
oArgs.Target = "Receiver";
if(ModuleCommunication != null)
ModuleCommunication(this, oArgs);
}
}
}
Then the Receiver.ascx
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Receive.ascx.cs" Inherits="YourNamespace.Receive" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%>
<asp:Label id="lblReceive" runat="server" CssClass="NormalRed"></asp:Label>
Lastly the Receiver.ascx.cs
namespace YourNamespace
{
using DotNetNuke;
using DotNetNuke.Entities.Modules;
using DotNetNuke.Entities.Modules.Communications;
public class Receive : PortalModuleBase, IModuleListener //again, we implement IModuleListener here
{
protected System.Web.UI.WebControls.Label lblReceive;
private void Page_Load(object sender, System.EventArgs e)
{
lblReceive.Text = "Listening...";
}
#region Web Form Designer generated code //Nothing changed here
public void OnModuleCommunication(object s, ModuleCommunicationEventArgs e) //This is what to do when you "hear" something
{
lblReceive.Text = e.Text;
}
}
}
--------------------------------------------------------------------------------
Kevon
