数据列表项目命令事件未触发 [英] Data list Item command event not firing

问题描述

大家可以帮助我..为什么这个项目命令无法正常工作，当我点击删除按钮？

  protected   void  list_ItemCommand1（ object  source，DataListCommandEventArgs e）
 {
  try  
 {
  if （e.CommandName ==  删除）
 {
 HiddenField id1 =（HiddenField）list.Items [e.Item.ItemIndex] .FindControl（  HF1\" ）; 
  if （dbo.deleterecords（  image ，  id =' + id1.Value +  '）==  true ）
 {
 
 
 lbldel.Text =  图片已删除; 
} 
} 
} 
  catch （例外情况）
 {
异常E =前; 
} 

 <   asp：DataList    < span class =code-attribute> ID   =  list    runat   =  server    RepeatColumns   =  5    ShowFooter   =  true    ShowHeader   =  true   宽度  =  98％    OnItemCommand   =  list_ItemCommand1 >  
 <   ItemTemplate  >  
 <   div     align   =   center >  
  <   asp：Image     ID   =  img    runat   =  server    BorderColor   =  white   < span class =code-attribute> BorderWidth   =  2   高度  =  100  
   
          < span class =code-attribute>                                     ImageUrl   ='  < span class =code-pagedirective><％＃ 〜/ Image.aspx？id =  + Eval（  id） ％> '   宽度  =  100px  /  >  
 <   asp：HiddenField  < span class =code-attribute>   ID   =  hf1    runat   =   server   值  ='  <％ #Eval（  id）％> '    /  >  
 <   br     /  >  
 
 <   asp：LinkBut​​ton     ID  < span class =code-keyword> =  linkremove    runat   =  server    CommandName   = 删除   文字  = 删除 >  <   / asp：LinkBut​​ton  >  
 <   / div  > ;  
 
 <   / ItemTemplate  >  
 
 
 <   / asp：DataList  >  

当我点击删除按钮时我无法移除特定图像..

解决方案

您好，



请先在Page_Load事件中调试，然后按F10继续检查是否有任何错误可能是导致问题的原因。


谢谢

Hi can anyone help me.. Why this itemcommand doesn''t works properly, when i click the remove button??

protected void list_ItemCommand1(object source, DataListCommandEventArgs e)
   {
       try
       {
           if (e.CommandName == "Remove")
           {
               HiddenField id1 = (HiddenField)list.Items[e.Item.ItemIndex].FindControl("hf1");
               if (dbo.deleterecords("image", "id='" + id1.Value + "'") == true)
               {

                  
                   lbldel.Text = "Image Deleted";
               }
           }
       }
       catch (Exception ex)
       {
           Exception E = ex;
       }

<asp:DataList ID="list" runat="server" RepeatColumns="5" ShowFooter="true" ShowHeader="true" Width="98%" OnItemCommand="list_ItemCommand1">
                  <ItemTemplate>
                  <div align="center">
                  <asp:Image ID="img" runat="server" BorderColor="white" BorderWidth="2" Height="100"

                      ImageUrl='<%# "~/Image.aspx?id="+Eval("id") %>' Width="100px"/>
                      <asp:HiddenField ID="hf1" runat="server" Value='<%# Eval("id") %>' />
                      <br />

                      <asp:LinkButton ID="linkremove" runat="server" CommandName="Remove" Text="Remove"></asp:LinkButton>
                      </div>

                  </ItemTemplate>


                  </asp:DataList>

I cant remove particular image when i click the remove button..

解决方案

Hi,

Please debug first in Page_Load event and by pressing F10 go ahead and check if there is any error which can be the cause of your problem.

Thanks

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