我有3个ASPX页面。每个页面上的用户控件都有一个电子邮件占位符。我想要实现的是当客户点击usercontrol电子邮件占位符时，应触发特定页面上的某些方法。
请参阅下面的代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using Tangent.Breakingfree;
public partial class uc_ucBottomMenu : System.Web.UI.UserControl
{
public string printUrl { get; set; }
public string emailUrl { get; set; }
public string audioUrl { get; set; }
public bool myDaigram { get; set; }
public bool toolbox { get; set; }
public uc_ucBottomMenu() {
myDaigram = true;
toolbox = true;
}
public Action<object, EventArgs> MyEvent;
protected void Page_Load(object sender, EventArgs e)
{
btnTriggerEvent.Click += new EventHandler(btnTriggerEvent_Click);
}
void btnTriggerEvent_Click(object sender, EventArgs e)
{
MyEvent(sender, e);
}
protected void Page_PreRender(object sender, EventArgs e)
{
Page.ClientScript.RegisterClientScriptInclude("bottomMenu", "../js/jqDock.js");
// bit of an oppositen as always late request from client
// saves going through all pages!!!
phDiagram.Visible = myDaigram;
phToolbox.Visible = toolbox;
if (string.IsNullOrEmpty(printUrl))
{
phPrint.Visible = false;
}
else
{
phPrint.Visible = true;
hplPrint.Attributes.Add("href", printUrl);
if (printUrl.IndexOf("javascript") == -1)
{
hplPrint.Attributes.Add("target", "_blank");
}
}
if (string.IsNullOrEmpty(emailUrl))
{
// quick fix for lloyd to do video guides
// string fileupload = "../client/pdf/test_test.pdf";
phEmail.Visible = true;
// hplEmail.Attributes.Add("href", "mailto:"+ emailUrl+ "?subject=Planning Your Time Positively &body=Well done for all the effort you have put into using the strategy of planning your time positively &attachement="+ fileupload+"");
hplEmail.Attributes.Add("attachment", "../client/pdf/test_test.pdf");
}
else
{
string fileupload = "../client/pdf/test_test.pdf";
phEmail.Visible = true;
// hplEmail.Attributes.Add("href",emailUrl);
hplEmail.Attributes.Add("href", "mailto:" + emailUrl + "?subject=Planning Your Time Positively &body=Well done for all the effort you have put into using the strategy of planning your time positively. &attachment=" + fileupload + "");
}
if (string.IsNullOrEmpty(audioUrl))
{
phAudio.Visible = false;
}
else
{
phAudio.Visible = true;
hplAudio.Attributes.Add("href", audioUrl);
}
}
protected void imgBtnLogOut_Click(object sender, ImageClickEventArgs e)
{
Helpers.Logout();
}
}
//ASPX page. I want to trigger this method when the email button is clicked, this method generated pdf
protected void CreateSummaryPDF(object sender, EventArgs e)
{
// create all node chart images
//==========Difficult Situation Chart============//
WriteDifficultSituations(true);
IDataReader dr1 = null;
dr1 = LBM.ChartGetSlider(userID, LBM.Slider.DifficultSituations);
Points obj1 = SortToYArray(dr1);
ChartDifficultSituations.SaveImage(Server.MapPath("../images/charts/") + SessionID.ToString() + "_" + LBM.Node.DifficultSituations.ToString() + ".png", ChartImageFormat.Png);
double a = obj1.maxVal;
dr1.Dispose();
//======================End========================//
double[] check = { a };
// set up pdf
IPdfManager objPdf = new PdfManager();
// Create empty document
IPdfDocument objDoc = objPdf.OpenDocument(Server.MapPath("../client/pdf/Progress-summary.pdf"), Missing.Value);
IPdfPage objPage = objDoc.Pages[1];
IPdfFont objFont = objDoc.Fonts["Helvetica-Bold", Missing.Value];
int[] arrX = { 80, 306, 80, 306, 80, 306, 80, 306 };
int[] arrY = { 590, 590, 290, 290, 590, 590, 290, 290 };
int i = 0;
// loop nodes and place on PDF
foreach (string name in Enum.GetNames(typeof(LBM.Node)))
{
// move onto the next page
if (i > 3) {
objPage = objDoc.Pages[2];
}
// add images
IPdfImage objImage = objDoc.OpenImage(Server.MapPath("../images/charts/") + SessionID.ToString() + "_" + name + ".png", Missing.Value);
// Add empty page. Page size is based on resolution and size of image
float fWidth = objImage.Width * 72.0f / objImage.ResolutionX;
float fHeight = objImage.Height * 72.0f / objImage.ResolutionY;
// Create empty param object
IPdfParam objParam = objPdf.CreateParam(Missing.Value);
objParam["x"].Value = arrX[i];
objParam["y"].Value = arrY[i] - fHeight;
objPage.Canvas.DrawImage(objImage, objParam);
objPage.Canvas.DrawText(name, "x=" + arrX[i] + ", y=" + (arrY[i]+50) + "; width=208; height=200; size=11; alignment=center; color=#ffffff", objFont);
i++;
}
String strFileName = objDoc.Save(Server.MapPath("../client/pdf/filledform.pdf"), true);
}
}
此外，我在另一个ASPX页面上有另一种方法。我想在客户端在该页面上时触发该方法。用户控件应根据用户当前所在的页面触发正确的方法。
答案 0 :(得分：2)
如果我理解得很清楚，你有3个aspx页面，只有一个包含表单的usercontrol。 单击usercontrol的按钮时，您希望在包含usercontrol的页面上启动方法。
在您的usercontrol中，您可以添加一个新属性（委托：Action＆lt;＆gt;），如下所示：
//在您的用户控件中
public Action<object, EventArgs> MyEvent;
protected void Page_Load(object sender, EventArgs e)
{
// The button in the usercontrol
btnTriggerEvent.Click += new EventHandler(btnTriggerEvent_Click);
}
// The click event for your button
void btnTriggerEvent_Click(object sender, EventArgs e)
{
// Raise the event (Action<>) when the button is clicked
MyEvent(sender, e);
}
// aspx页面中的特定方法:(示例中的一个简单方法）
protected void Page_Load(object sender, EventArgs e)
{
// Trigger is the name of the usercontrol
Trigger.MyEvent = TriggerDefault;
}
public void TriggerDefault(object sender, EventArgs e)
{
// Do whatever you want here
Response.Write("ABOUT PAGE !!!"); // or some other text
}
答案 1 :(得分：0)
您可以在单击电子邮件时从用户控件发送事件并在aspx中捕获它。