如何将图像添加到ASP.NET用户控制器中的图像按钮

Question

我有2个项目。一个是主要的WebForm项目，第二个是用于我的用户控件的库项目。该库不使用文件扩展名ASCX。我必须对此清楚。我的目标是创建一个包含1个文本框，1个图像按钮，2个下拉列表，1个按钮和1个日历的用户控制器。基本上是日期选择器控制器。到目前为止，一切都在起作用。我可以修改日历，居民月（下拉）和年（下拉）。所有按钮和动作都正确地表现了我期望的行为。我单击它时，即使是图像按钮；它显示日历罚款。我在分配ImageUrl属性时遇到了问题。我已经将图像复制到图书馆项目，主项目，而无效。运行主项目时，只是显示一个损坏的图像。两个项目都有相同的文件夹和文件的名称（〜/images/calendar4.png“;）。我在UserController和Main Project中添加了此URL，并且无效。

我在这两个项目上都尝试了以下语法（一次）： （在主项目上）

string imgsource = "~/Images/calendar4.png";
ucpCalendar.ImageUrl = imgsource;

我尝试了以下语法：

string FullPathVirtual = Server.MapPath("~/Images/calendar4.png");
ucpCalendar.ImageUrl = FullPathVirtual;

我尝试了此：

string path = (Server.MapPath(".") + "//Images//" + "calendar4.png");
string imgPath = path.Replace("\\", "/").Replace("//", "/");
ucpCalendar.ImageUrl = imgPath ;

这是我的usercontroller代码（我试图进行随机映像搜索以查看它是否找到图片。仍然没有起作用）：

public class pCalendar : UserControl
    {
        protected Calendar  cdatepicker;
        protected DropDownList ddrYear;
        protected DropDownList ddrMonth;
        protected ImageButton imbcalendar;
        protected TextBox txtbdatedisplay;
        protected Button btntoday;
        public pCalendar()
        {
            txtbdatedisplay = new TextBox();
            imbcalendar = new ImageButton();
            ddrMonth = new DropDownList();
            ddrYear = new DropDownList();
            btntoday = new Button();
            cdatepicker = new Calendar();
          
           
            Controls.Add(new LiteralControl("<table cellspacing=\"0\" cellpadding=\"0\">"));
            Controls.Add(new LiteralControl("   <tr>"));
            Controls.Add(new LiteralControl("       <td>"));
            Controls.Add(txtbdatedisplay);
            Controls.Add(imbcalendar);
            Controls.Add(new LiteralControl("       </td>"));
            Controls.Add(new LiteralControl("   </tr>"));
            Controls.Add(new LiteralControl("   <tr>"));
            Controls.Add(new LiteralControl("       <td>"));
            Controls.Add(ddrMonth);
            Controls.Add(ddrYear);
            Controls.Add(btntoday);
            Controls.Add(new LiteralControl("       </td>"));
            Controls.Add(new LiteralControl("   </tr>"));
            Controls.Add(new LiteralControl("   <tr>"));
            Controls.Add(new LiteralControl("       <td>"));
            Controls.Add(cdatepicker);
            Controls.Add(new LiteralControl("       </td>"));
            Controls.Add(new LiteralControl("   </tr>"));
            Controls.Add(new LiteralControl("</table>"));

        }
        protected override void OnInit(EventArgs e)
        {
           
            cdatepicker.VisibleDate = cdatepicker.TodaysDate;
            Hide();

            ControllersBasicInfo();
            
            int myYear = System.DateTime.Now.Year;
            int myMonth = System.DateTime.Now.Month;

            for (int i = 0; i < 101; i++)
            {
                ddrYear.Items.Add((myYear - i).ToString());
            }
            ddrYear.SelectedValue = myYear.ToString();
            ddrMonth.SelectedValue = myMonth.ToString();

            ddrMonth.AutoPostBack = true;
            ddrYear.AutoPostBack = true;

            ddrMonth.SelectedIndexChanged += new System.EventHandler(SetCalendarVisibleDate_SelectedIndexChanged);
            ddrYear.SelectedIndexChanged += new System.EventHandler(SetCalendarVisibleDate_SelectedIndexChanged);

            if (AutoPostBack)
            {
                ddrMonth.SelectedIndexChanged += new System.EventHandler(ddl_SelectedIndexChanged);
                ddrYear.SelectedIndexChanged += new System.EventHandler(ddl_SelectedIndexChanged);
              
            }
            imbcalendar.Click+=imbcalendar_Click;
            btntoday.Click += btntoday_Click;
            cdatepicker.SelectionChanged += cdatepicker_SelectionChanged;

            cdatepicker.DayRender += cdatepicker_DayRender;

            base.OnInit(e);
        }

        private void ControllersBasicInfo()
        {
            string FullPathVirtual = PickRandomImage2();
            //imbcalendar.ImageUrl = "~/Images/calendar4.png";
            imbcalendar.ImageUrl = FullPathVirtual;
        }
        private string PickRandomImage2()
        {
            Random rnd = new Random();
            string[] image = Directory.GetFiles(MapPath("~/image"), "*.jpg");
            string imageDisplay = image[rnd.Next(image.Length)];
            return imageDisplay;
        }
        public void BindData()
        {
            BindDataMonth();
        }
  
        public string ImageUrl
        {
            get
            {
                return this.imbcalendar.ImageUrl;
            }
            set
            {
                this.imbcalendar.ImageUrl = value;
            }
        }
}

WebForm代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Calendar.aspx.cs" Inherits="IAS.Calendar" %>
<%@ Register Assembly="IAS.Controls" Namespace="IAS.Controls" TagPrefix="uc" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <script src="/scripts/jquery-1.6.4.min.js" type="text/javascript"></script>
      <script src="/scripts/common.min.js" type="text/javascript"></script>
     <script src="/scripts/jquery.extend-1.5.0.min.js" type="text/javascript"></script>
    <script src="/Calendar/jscal2.js" type="text/javascript"></script>
    <link rel="stylesheet" type="text/css" href="/Calendar/CSS/jscal2.css" />
  <link rel="stylesheet" type="text/css" href="/CSS/Common.css" />
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <table>
        <tr>
            <td>
                <uc:pCalendar ID="ucpCalendar" runat="server"></uc:pCalendar>
            </td>
        </tr>
    </table>
    <div>
</form>

C＃.Net背后的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using lktec.Utils;

namespace TestCalendar
{
  public partial class Calendar : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                ucpCalendar.BindData();
                //ucpCalendar.ImageUrl = "~/Images/calendar4.png";
             }
        }
   }
}

这是正在发生的事情的图像： 带有其他信息的日历显示

我只对我的问题提出了相关代码。如果您需要完整的代码，请告诉我。这是很多代码。我不确定我在做什么错。

这是要添加的建议的代码： 使用输入标签：

string inputstring = @"<input type=""image""
                alt=""Clear button"" 
                src=""C:/Users/SANOZUKE/Documents/Visual Studio 2013/Projects/MHPPROJECT-English/IAS.root/IAS/IAS/Images/calendar4.png"" 
                onserverclick=""imbcalendar_Click"" 
                runat=""server""
                id=""imbcalendar"" />";

不幸的是，这无效。仍然没有在控制器上显示图像。

这是图片：