NET不火的OnClick事件处理程序

NET不火的OnClick事件处理程序

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在的ImageButton直放站ASP.NET不火的OnClick事件处理程序

本文介绍了在的ImageButton直放站ASP.NET不火的OnClick事件处理程序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

限时删除！！

我有一个Repeater控件内的的ImageButton。我重视的事件处理程序到的ImageButton的onclick事件。但是，当我点击的ImageButton事件不会被解雇。请让我知道如果我失去了一些东西。谢谢

我已经附加aspx页面和codebehind文件

 ＆LT;％@页面语言=C＃AutoEventWireup =真codeBehind =AddTag.aspx.cs继承=IV.Web.Searchv2UI.AddTag。 AddTagEnableEventValidation =假的EnableViewState =真正的％GT;！＆LT; D​​OCTYPE HTML PUBLIC -  // W3C // DTD XHTML 1.0过渡// ENhttp://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">＆LT; HTML的xmlns =htt​​p://www.w3.org/1999/xhtml＆GT;
＆LT;头=服务器＆GT;
    ＆LT;标题＆GT;    ＆LT; /标题＆GT;
    ＆LT;风格类型=文/ CSS＆GT;
    。新增标签颜色要求的
{
    颜色：红色;
}。新增标签浮动右
{
    浮动：权利;
}    ＆LT; /风格＆GT;
    ＆LT;脚本类型=文/ JavaScript的＆GT;
        功能GetRadWindow（）{
            VAR oWindow = NULL;
            如果（window.radWindow）
                oWindow = window.RadWindow; //将在万盎司的工作在所有情况下，包括经典对话
            否则，如果（window.frameElement.radWindow）
                oWindow = window.frameElement.radWindow; // IE（以及万盎司以及）
            返回oWindow;
        }        功能取消（）{
            //干净保存搜索领域
            document.forms [0] .reset段（）;            //获取到当前RadWindow一个参考
            变种oWindow = GetRadWindow（）;
            oWindow.close（）;
        }    ＆LT; / SCRIPT＆GT;
＆LT; /头＆GT;
＆LT;身体GT;
    ＆LT;表ID =formAddTag=服务器＆GT;        ＆LT;％ -  RadScriptManager  - ％GT;
        ＆LT; Telerik的：RadScriptManager ID =radScriptManager=服务器/＆GT;
        ＆LT;％ -  RadScriptManager  - ％GT;         ＆LT;％ -  Telerik的装饰 - ％GT;
        ＆LT; Telerik的：RadFormDecorator ID =radFormDecorator=服务器DecoratedControls =全部/＆GT;
        ＆LT;％ -  Telerik的装饰 - ％GT;        ＆LT;％ -  StyleSheetManager  - ％GT;
        ＆LT;跑道：StyleSheetManager ID =runwayStyleSheetManager=服务器/＆GT;
        ＆LT;％ -  StyleSheetManager  - ％GT;
        ＆LT; Telerik的：RadAjaxLoadingPanel ID =radAjaxLoadingPanel=服务器/＆GT;        ＆LT; Telerik的：RadAjaxPanel ID =radAjaxPanelAddTag=服务器的CssClass =跨度-12LoadingPanelID =radAjaxLoadingPanel＆GT;
            ＆LT; D​​IV CLASS =跨度-12最后高度2＆GT;
                ＆LT; D​​IV CLASS =跨度7的高度-2＆GT;                        ＆LT; ASP：标签ID =labelAddTag文本=标签=服务器的CssClass =颜色-A-4/＆GT;
                        ＆LT; BR /＆GT;
                        ＆LT;跨度＆GT;＆安培; NBSP;输入用逗号分隔的标签＆LT; / SPAN＆GT;
                    ＆LT; / DIV＆GT;
                ＆LT; / DIV＆GT;
                ＆LT; BR /＆GT;
                ＆LT; D​​IV CLASS =跨度7上次高度2＆GT;
                    ＆LT; Telerik的：RadTextBox ID =radTextBoxTags=服务器MAXLENGTH =45WIDTH =98％/＆GT;
                    ＆LT; ASP：的RequiredFieldValidator ID =requiredFieldValidatorSearchName=服务器的ControlToValidate =radTextBoxTags
                                                显示=无的ErrorMessage =标签是必需的。＆GT;
                    ＆LT; / ASP：＆的RequiredFieldValidator GT;
                ＆LT; / DIV＆GT;
                ＆LT; D​​IV CLASS =跨度5最后高度2＆GT;                        ＆LT; ASP：按钮的ID =buttonAdd=服务器文本=添加的CausesValidation =真WIDTH =×45像素的OnClick =buttonAdd_Click/＆GT;
                        ＆LT; ASP：按钮的ID =buttonCancel=服务器文本=取消的CausesValidation =假WIDTH =50像素的OnClientClick =取消（）;返回false; /＆GT;
                 ＆LT; / DIV＆GT;
                   ＆LT; BR /＆GT;
                    ＆LT; D​​IV CLASS =跨度-12＆GT;
                   ＆LT; ASP：直放站ID =repeaterTag=服务器＆GT;                    ＆LT;＆ItemTemplate中GT;                        ＆LT; ASP：标签ID =labelTag=服务器文本=＆LT;％＃的Container.DataItem％GT;＆GT;＆LT; / ASP：标签＆gt;
                        ＆LT; ASP：ImageButton的=服务器ID =imageButtonRemove的ImageUrl =〜/ App_Themes文件/ ChromeTheme /图片/ message_close_9x9.png工具提示=删除的OnClick =imageButtonRemove_Click/＆GT;                        ＆LT;跨度＆GT;＆安培; NBSP;＆LT; / SPAN＆GT;                     ＆LT; / ItemTemplate中＆GT;
                   ＆LT; / ASP：直放站＆GT;
               ＆LT; / DIV＆GT;        ＆LT; / Telerik的：RadAjaxPanel＆GT;
        ＆LT; /表及GT;
＆LT; /身体GT;
＆LT; / HTML＆GT;

隐藏文件的code是如下：

 使用系统;
使用System.Collections.Generic;
System.Collections中使用;
使用System.Linq的;
使用的System.Web;
使用System.Web.UI程序;
使用System.Web.UI.WebControls;命名空间IV.Web.Searchv2UI.AddTag
{
公共部分类AddTag：System.Web.UI.Page
{
保护无效的Page_Load（对象发件人，EventArgs的发送）
{
如果（！Page.IsPostBack）
{
清单＆LT;串GT;标签=新的List＆LT;串GT;（）;tags.Add（半导体）;
tags.Add（电子）;
tags.Add（我们）;的ViewState [标签] =标签;repeaterTag.DataSource =标签;
repeaterTag.DataBind（）;}
}保护无效buttonAdd_Click（对象发件人，EventArgs的发送）
{
清单＆LT;串GT;标签=（列表＆LT;串GT;）的ViewState [标签];
串[] newTags = radTextBoxTags.Text.Split（，）;
如果（newTags.Length大于0）
{的foreach（在newTags字符串标记）
{
如果（！tags.Contains（标签））
{
tags.Add（标签）;
}
}
}
的ViewState [标签] =标签;
repeaterTag.DataSource =标签;
repeaterTag.DataBind（）;radTextBoxTags.Text =的String.Empty;
}保护无效imageButtonRemove_Click（对象发件人，EventArgs的发送）
{
清单＆LT;串GT;标签=（列表＆LT;串GT;）的ViewState [标签];
的ImageButton按钮=（ImageButton的）寄件人;面板面板=（面板）button.Parent;
字符串标记=（（标签）（panel.Controls [1]））文本。tags.Remove（标签）;
的ViewState [标签] =标签;
repeaterTag.DataSource =标签;
repeaterTag.DataBind（）;
}
}
}


解决方案

我有DET同样的问题，并通过AV ASP解决它：LinkBut​​ton的使用与按需事件。我的标记和code背后如下公布。

标记：

 ＆LT; ASP：直放站ID =rptRecipients=服务器＆GT;
            ＆LT;＆HeaderTemplate中GT;
                ＆LT;表＆gt;
            ＆LT; / HeaderTemplate中＆GT;
            ＆LT;＆ItemTemplate中GT;
                ＆所述; TR＆GT;
                    ＆所述; TD＆GT;
                        ＆LT; ASP：标签ID =LabelRecipient文本='＆LT;％＃的eval（值）％GT;' =服务器＆GT;＆LT; / ASP：标签＆gt;
                    ＆LT; / TD＆GT;
                    ＆所述; TD＆GT;
                    ＆LT; ASP：LinkBut​​ton的按需=lbRemove_CommandCommandArgument ='＆LT;％＃的eval（密钥）％GT;'
                            的CommandName =删除=服务器＆GT;
                        ＆LT; ASP：图像的ImageUrl =〜/图片/ delete.png=服务器/＆GT;
                    ＆LT; / ASP：LinkBut​​ton的＆GT;
                    ＆LT; / TD＆GT;
                ＆LT; / TR＆GT;
            ＆LT; / ItemTemplate中＆GT;
            ＆LT; FooterTemplate＆GT;
                ＆LT; /表＆gt;
            ＆LT; / FooterTemplate＆GT;
        ＆LT; / ASP：直放站＆GT;

背后code：

 保护无效lbRemove_Command（对象发件人，CommandEventArgs E）
    {
        开关（e.CommandName）
        {
            案删除：
                Recipients.Remove（e.CommandArgument.ToString（））;
                rptRecipients.DataSource =收件人;
                rptRecipients.DataBind（）;
                打破;        }
    }

I have an ImageButton inside a repeater control. I have attached an eventhandler to the OnClick event of the ImageButton. But when I click the ImageButton the event does not get fired. Please Let me know if I am missing something. Thanks

I've attached the aspx page and the codebehind file

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AddTag.aspx.cs" Inherits="IV.Web.Searchv2UI.AddTag.AddTag" EnableEventValidation="false" EnableViewState="true" %>

<!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>
    <style type="text/css">
    .add-tag-color-required
{
    color:Red;
}

.add-tag-float-right
{
    float:right;
}

    </style>
    <script type="text/javascript">
        function GetRadWindow() {
            var oWindow = null;
            if (window.radWindow)
                oWindow = window.RadWindow; //Will work in Moz in all cases, including classic dialog
            else if (window.frameElement.radWindow)
                oWindow = window.frameElement.radWindow; //IE (and Moz as well)
            return oWindow;
        }

        function Cancel() {
            // clean save search fields
            document.forms[0].reset();

            //get a reference to the current RadWindow
            var oWindow = GetRadWindow();
            oWindow.close();
        }

    </script>
</head>
<body >
    <form id="formAddTag" runat="server">

        <%-- RadScriptManager --%>
        <telerik:RadScriptManager ID="radScriptManager" runat="server" />
        <%-- RadScriptManager --%>

         <%-- Telerik Decorator --%>
        <telerik:RadFormDecorator id="radFormDecorator" runat="server" DecoratedControls="All" />
        <%-- Telerik Decorator --%>

        <%-- StyleSheetManager --%>
        <runway:StyleSheetManager ID="runwayStyleSheetManager" runat="server" />
        <%-- StyleSheetManager --%>




        <telerik:RadAjaxLoadingPanel ID="radAjaxLoadingPanel" runat="server" />

        <telerik:RadAjaxPanel ID="radAjaxPanelAddTag" runat="server" CssClass="span-12" LoadingPanelID="radAjaxLoadingPanel">
            <div class="span-12 last height-2">
                <div class="span-7 height-2">

                        <asp:Label ID="labelAddTag" Text=" Tags" runat="server" CssClass="color-a-4" />
                        <br/>
                        <span>&nbsp;Enter tags seperated by commas.</span>
                    </div>
                </div>
                <br/>
                <div class="span-7 last height-2">
                    <telerik:RadTextBox ID="radTextBoxTags" runat="server" MaxLength="45" Width="98%" />
                    <asp:RequiredFieldValidator ID="requiredFieldValidatorSearchName" runat="server" ControlToValidate="radTextBoxTags"
                                                Display="None" ErrorMessage="Tag is required.">
                    </asp:RequiredFieldValidator>
                </div>


                <div class="span-5 last height-2">

                        <asp:Button id="buttonAdd" runat="server" Text="Add" CausesValidation="true" Width="45px" OnClick="buttonAdd_Click" />
                        <asp:Button id="buttonCancel" runat="server" Text="Cancel" CausesValidation="false" Width="50px" OnClientClick="Cancel(); return false;" />
                 </div>
                   <br />
                    <div class="span-12">
                   <asp:Repeater ID="repeaterTag" runat="server">

                    <ItemTemplate>

                        <asp:Label ID="labelTag" runat="server" Text="<%#Container.DataItem %>"></asp:Label>
                        <asp:ImageButton runat="server" ID="imageButtonRemove" ImageUrl="~/App_Themes/ChromeTheme/Images/message_close_9x9.png" ToolTip="Remove" OnClick="imageButtonRemove_Click" />

                        <span>&nbsp;</span>

                     </ItemTemplate>
                   </asp:Repeater>
               </div>

        </telerik:RadAjaxPanel>
        </form>
</body>
</html>

The code behind file is as follows.

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

namespace IV.Web.Searchv2UI.AddTag
{
	public partial class AddTag : System.Web.UI.Page
	{


		protected void Page_Load(object sender, EventArgs e)
		{
			if (!Page.IsPostBack)
			{
				List<string> tags = new List<string>();

				tags.Add("semiconductor");
				tags.Add("electronics");
				tags.Add("us");

				ViewState["Tags"] = tags;

				repeaterTag.DataSource = tags;
				repeaterTag.DataBind();



			}
		}

		protected void buttonAdd_Click(object sender, EventArgs e)
		{
			List<string> tags = (List<string>)ViewState["Tags"];
			string[] newTags = radTextBoxTags.Text.Split(',');
			if (newTags.Length > 0)
			{

				foreach(string tag in newTags)
				{
					if (!tags.Contains(tag))
					{
						tags.Add(tag);
					}
				}
			}
			ViewState["Tags"] = tags;
			repeaterTag.DataSource = tags;
			repeaterTag.DataBind();

			radTextBoxTags.Text = string.Empty;
		}

		protected void imageButtonRemove_Click(object sender, EventArgs e)
		{
			List<string> tags = (List<string>)ViewState["Tags"];
			ImageButton button = (ImageButton)sender;

			Panel panel = (Panel)button.Parent;
			string tag = ((Label)(panel.Controls[1])).Text;

			tags.Remove(tag);
			ViewState["Tags"] = tags;
			repeaterTag.DataSource = tags;
			repeaterTag.DataBind();
		}
	}
}
解决方案

I had det same problem, and solved it by using av asp:Linkbutton with a with the "OnCommand" event. My markup and code behind is posted below.

Markup:

<asp:Repeater ID="rptRecipients" runat="server">
            <HeaderTemplate>
                <table>
            </HeaderTemplate>
            <ItemTemplate>
                <tr>
                    <td>
                        <asp:Label ID="LabelRecipient" Text='<%# Eval("Value")%>' runat="server"></asp:Label>
                    </td>
                    <td>
                    <asp:LinkButton OnCommand="lbRemove_Command"  CommandArgument='<%# Eval("Key")%>'
                            CommandName="Remove"  runat="server">
                        <asp:Image ImageUrl="~/Images/delete.png" runat="server" />
                    </asp:LinkButton>
                    </td>
                </tr>
            </ItemTemplate>
            <FooterTemplate>
                </table>
            </FooterTemplate>
        </asp:Repeater>

Code behind:

 protected void lbRemove_Command(object sender, CommandEventArgs e)
    {
        switch (e.CommandName)
        {
            case "Remove":
                Recipients.Remove(e.CommandArgument.ToString());
                rptRecipients.DataSource = Recipients;
                rptRecipients.DataBind();
                break;

        }
    }

这篇关于在的ImageButton直放站ASP.NET不火的OnClick事件处理程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

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