在DataList的图像按钮事件不工作 [英] Image button event in datalist not working

问题描述

图像按钮事件不会触发我失去了从我的code东西
      上ItemCommand事件不会触发，请帮助我，我在这stucked
这是我的DataList code：

 ＆LT; ASP：DataList控件ID =DataList1=服务器RepeatColumns =1
    RepeatDirection =垂直WIDTH =100％
    onitemdatabound =DataList1_ItemDataBoundonitemcommand =DataList1_ItemCommand＆GT;
    ＆LT;＆ItemTemplate中GT;
    ＆LT; D​​IV CLASS =comments_pannel_top＆GT;
    ＆LT; H2＆GT;强烈推荐，＆LT; / H＆GT;
    ＆LT; P＆GT;按：其中; A HREF =＃＆GT;＆LT; ASP：标签ID =lblCustomerName=服务器＆GT;＆LT; / ASP：标签＆gt;＆LT; / A＆GT; - 
        ＆LT; ASP：标签ID =lblCity=服务器＆GT;＆LT; / ASP：标签＆gt ;,
        ＆LT; ASP：标签ID =原产国=服务器＆GT;＆LT; / ASP：标签＆gt; ＆LT;跨度＆GT;
            ＆LT; ASP：标签ID =lblDate=服务器＆GT;＆LT; / ASP：标签＆gt;＆LT; / SPAN＆GT;＆LT; / P＆GT;
    ＆LT; / DIV＆GT;
    ＆LT; D​​IV CLASS =stars_1＆GT;
    ＆LT; IMG SRC =图像/ favourities_icon.jpgWIDTH =12高度=12ALT =/＆GT;
    ＆LT; IMG SRC =图像/ favourities_icon.jpgWIDTH =12高度=12ALT =/＆GT;
    ＆LT; IMG SRC =图像/ favourities_icon.jpgWIDTH =12高度=12ALT =/＆GT;
    ＆LT; IMG SRC =图像/ favourities_icon.jpgWIDTH =12高度=12ALT =/＆GT;
    ＆LT; IMG SRC =图像/ favourities_icon.jpgWIDTH =12高度=12ALT =/＆GT;
    ＆LT; / DIV＆GT;
    ＆LT; D​​IV CLASS =评论＆GT;
    ＆LT; P＆GT;＆LT;强大于5的11人认为该评论有用＆LT; / STRONG＆GT;＆LT; / P＆GT;
    ＆所述p为H.;
        ＆LT; ASP：标签ID =lblReview=服务器＆GT;＆LT; / ASP：标签＆gt;＆LT; / P＆GT;
    ＆LT; / DIV＆GT;
    ＆LT; D​​IV CLASS =report_abuse＆GT;
    ＆LT; P＆GT;你有没有发现这条点评＆LT; / P＆GT;
    ＆LT; / DIV＆GT;    ＆LT; D​​IV CLASS =comments_pannel_bottom＆GT;
    ＆LT; D​​IV CLASS =btns＆GT;
        ＆LT; ASP：ImageButton的ID =btnYes的ImageUrl =图片/ yes_btn.jpgWIDTH =33高度=23=服务器的CommandName =是/＆GT;
        ＆LT; ASP：ImageButton的ID =btnN​​o=服务器的ImageUrl =图片/ no_btn.jpgWIDTH =33高度=23ALT =的CommandName =否/＆GT;    ＆LT; / DIV＆GT;
    ＆LT; / DIV＆GT;
    ＆LT; / ItemTemplate中＆GT;
＆LT; / ASP：DataList控件＆GT;  这是onitem命令事件处理程序：  保护无效DataList1_ItemCommand（对象源，DataListCommandEventArgs E）
    {    }
 

解决方案

什么服务器端事件处理程序是他们必然？通常，标记包含绑定命令事件到服务器端处理程序的按需属性。见的例子<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.imagebutton.commandname.aspx\"相对=nofollow>这里：

 ＆LT; ASP：ImageButton的ID =imagebutton2=服务器
       还有AlternateText =编辑
       的ImageUrl =图片/ pict2.jpg
       按需=ImageButton_Command
       的CommandName =编辑/＆GT;
 

为按需属性的值将是服务器端的事件处理程序方法的名称：

 无效ImageButton_Command（对象发件人，CommandEventArgs E）
{
   // ...
}
 

the image button events are not firing am i missing something from my code the on itemcommand event doesn't trigger please help me i'm stucked in it this is my datalist code:

    <asp:DataList ID="DataList1" runat="server" RepeatColumns="1" 
    RepeatDirection="Vertical" Width="100%"
    onitemdatabound="DataList1_ItemDataBound" onitemcommand="DataList1_ItemCommand">
    <ItemTemplate>
    <div class="comments_pannel_top">
    <h2>Highly Recommended,</h2>
    <p>By:<a href="#"><asp:Label ID="lblCustomerName" runat="server"></asp:Label></a> – 
        <asp:Label ID="lblCity" runat="server"></asp:Label>, 
        <asp:Label ID="lblCountry" runat="server"></asp:Label> <span>
            <asp:Label ID="lblDate" runat="server"></asp:Label></span></p>
    </div>
    <div class="stars_1">
    <img src="images/favourities_icon.jpg" width="12" height="12" alt="" />
    <img src="images/favourities_icon.jpg" width="12" height="12" alt="" />
    <img src="images/favourities_icon.jpg" width="12" height="12" alt="" />
    <img src="images/favourities_icon.jpg" width="12" height="12" alt="" />
    <img src="images/favourities_icon.jpg" width="12" height="12" alt="" />
    </div>
    <div class="comment">
    <p><strong>5 out of 11 people found this review helpful.</strong></p>
    <p>
        <asp:Label ID="lblReview" runat="server"></asp:Label></p>
    </div>
    <div class="report_abuse">
    <p>Did you find this review helpful?</p>
    </div>

    <div class="comments_pannel_bottom">
    <div class="btns">
        <asp:ImageButton ID="btnYes" ImageUrl="images/yes_btn.jpg" width="33"   height="23"  runat="server" CommandName="Yes" />
        <asp:ImageButton ID="btnNo" runat="server" ImageUrl="images/no_btn.jpg" width="33" height="23" alt="" CommandName="No"/>

    </div>
    </div>
    </ItemTemplate>
</asp:DataList>

  This is the onitem command event handler:

  protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
    {

    }

解决方案

What server-side event handler are they bound to? Usually the markup contains an OnCommand property which binds the command event to a server-side handler. See examples here:

<asp:ImageButton id="imagebutton2" runat="server"
       AlternateText="Edit"
       ImageUrl="images/pict2.jpg"
       OnCommand="ImageButton_Command"
       CommandName="Edit"/>

The value for the OnCommand property would be the name of the server-side event handler method:

void ImageButton_Command(object sender, CommandEventArgs e) 
{
   //...
}

这篇关于在DataList的图像按钮事件不工作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IT屋！