Asp.net 事件不使用ParseControl方法
我想在站点上添加动态图像按钮,但没有图像按钮的ID,所以我使用ASP标记生成带有ParseControl方法的动态控件,它可以工作,但单击图像按钮时不会触发事件 Default.aspx.cs代码Asp.net 事件不使用ParseControl方法,asp.net,event-handling,dynamic-controls,Asp.net,Event Handling,Dynamic Controls,我想在站点上添加动态图像按钮,但没有图像按钮的ID,所以我使用ASP标记生成带有ParseControl方法的动态控件,它可以工作,但单击图像按钮时不会触发事件 Default.aspx.cs代码 protected void Page_Load(object sender, EventArgs e) { string str = @"<asp:ImageButton runat=server ImageUrl=""~/close-i
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton runat=server ImageUrl=""~/close-icon (1).png"" OnClick=""click"" />";
Control c = Page.ParseControl(str);
form1.Controls.Add(c);
}
protected void click(object sender, ImageClickEventArgs e)
{
Response.Write("Image Clicl");
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class dynamicimage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton ID=""dynoimage"" ImageUrl=""~/images/about01.jpg"" runat=""server"" oncommand=""clickme"" commandname=""btn"" />";
Control c = ParseControl(str);
form1.Controls.Add(c);
((ImageButton)Page.FindControl("dynoimage")).Command += new CommandEventHandler(clickme);
}
protected void clickme(object sender,CommandEventArgs e)
{
Response.Write("Image clicked");
Label1.Text = "Image clicked";
}
}
受保护的无效页面加载(对象发送方,事件参数e)
{
字符串str=@“;
控件c=Page.ParseControl(str);
表1.控制。添加(c);
}
受保护的无效单击(对象发送者,ImageClickEventArgs e)
{
回答。写(“图像剪辑”);
}
Default.aspx代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<!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">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
无标题页
请通过在解决方案中提供代码来帮助我解决问题。我找到了答案,答案如下 Default.aspx.cs代码
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton runat=server ImageUrl=""~/close-icon (1).png"" OnClick=""click"" />";
Control c = Page.ParseControl(str);
form1.Controls.Add(c);
}
protected void click(object sender, ImageClickEventArgs e)
{
Response.Write("Image Clicl");
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class dynamicimage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton ID=""dynoimage"" ImageUrl=""~/images/about01.jpg"" runat=""server"" oncommand=""clickme"" commandname=""btn"" />";
Control c = ParseControl(str);
form1.Controls.Add(c);
((ImageButton)Page.FindControl("dynoimage")).Command += new CommandEventHandler(clickme);
}
protected void clickme(object sender,CommandEventArgs e)
{
Response.Write("Image clicked");
Label1.Text = "Image clicked";
}
}
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用System.Web;
使用System.Web.UI;
使用System.Web.UI.WebControl;
公共部分类dynamicimage:System.Web.UI.Page
{
受保护的无效页面加载(对象发送方、事件参数e)
{
字符串str=@“;
控制c=控制(str);
表1.控制。添加(c);
((ImageButton)Page.FindControl(“dynoimage”)).Command+=新CommandEventHandler(clickme);
}
受保护的无效clickme(对象发送者,CommandEventArgs e)
{
回答。写(“点击图像”);
Label1.Text=“单击图像”;
}
}
下面是Default.aspx页面:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="dynamicimage.aspx.cs" Inherits="dynamicimage" %>
<!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">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<p>
<asp:Label ID="Label1" runat="server" Text="before click"></asp:Label>
</p>
</form>
</body>
</html>
我找到了答案,答案如下
Default.aspx.cs代码
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton runat=server ImageUrl=""~/close-icon (1).png"" OnClick=""click"" />";
Control c = Page.ParseControl(str);
form1.Controls.Add(c);
}
protected void click(object sender, ImageClickEventArgs e)
{
Response.Write("Image Clicl");
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class dynamicimage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string str = @"<asp:ImageButton ID=""dynoimage"" ImageUrl=""~/images/about01.jpg"" runat=""server"" oncommand=""clickme"" commandname=""btn"" />";
Control c = ParseControl(str);
form1.Controls.Add(c);
((ImageButton)Page.FindControl("dynoimage")).Command += new CommandEventHandler(clickme);
}
protected void clickme(object sender,CommandEventArgs e)
{
Response.Write("Image clicked");
Label1.Text = "Image clicked";
}
}
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用System.Web;
使用System.Web.UI;
使用System.Web.UI.WebControl;
公共部分类dynamicimage:System.Web.UI.Page
{
受保护的无效页面加载(对象发送方、事件参数e)
{
字符串str=@“;
控制c=控制(str);
表1.控制。添加(c);
((ImageButton)Page.FindControl(“dynoimage”)).Command+=新CommandEventHandler(clickme);
}
受保护的无效clickme(对象发送者,CommandEventArgs e)
{
回答。写(“点击图像”);
Label1.Text=“单击图像”;
}
}
下面是Default.aspx页面:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="dynamicimage.aspx.cs" Inherits="dynamicimage" %>
<!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">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<p>
<asp:Label ID="Label1" runat="server" Text="before click"></asp:Label>
</p>
</form>
</body>
</html>