从服务器端获取值控制列表视图 [英] get value control listview from server side

问题描述

hi
i有ListView带图片

事件OnItemDeleting我得到id字段并从数据库中删除

我希望从ftp删除图片，

i useLabel a =（Label）ListView1.EditItem.FindControl（Label1）;得到名字图片

但是，它不工作

< pre lang =   xml> protected  void  ListView1_OnItemDeleting（ object  sender，ListViewDeleteEventArgs e）
 {
  int  id = < span class =code-keyword> int  .Parse（ListView1.DataKeys [e.ItemIndex] .Value.ToString（））; 
 
标签a =（标签）ListView1.EditItem.FindControl（Label1）; 
。 
。 
。 
。 
 < /   pre  >  
 
< pre lang =   HTML >  
< asp：ListView ID =   ListView1  
 DataKeyNames =   ID_Pic 
 RepeatColumns =   5 
 RepeatDirection =  < span class =code-string> Horizo​​ntal 
 DataKeyField =   ID_Pic 
 OnItemEditing =   ListView1_OnItemEditing 
 OnItemCanceling =   ListView 1_OnItemCanceling 
 OnItemUpdating =   ListView1_OnItemUpdating 
 OnItemDeleting = < span class =code-string>  ListView1_OnItemDeleting 
 runat =   server OnPreRender =   ListView1_OnPreRender >  
< LayoutTemplate> 
< div> 
< ul  class  =   hoverbox  >  
< asp：PlaceHolder ID =   itemPlaceholder runat =   server /> 
 < /   ul  >  
 < /   div  >  
 < /   LayoutTemplate   >  
< ItemTemplate> 
< asp：标签ID =   Label1 runat =   server可见=   False Text = ' <％＃Eval（PinNameMD5）％>' >  < /   asp：Label  >  
< asp：标签ID =   lbl2ID_Pic runat =   server可见=   False Text = ' <％＃Eval（ID_Pic）％>' >  < /   asp：标签 >  
< li> 
< div style =   width：auto; height：auto; >  
< a >  
< img src = ' <％＃Eval（PinNameMD5）％>' alt =  ' <％＃Eval（Alt_Txt）％>' /> 
< img src = ' <％＃Eval（PinNameMD5）％>' alt = ' <％＃Eval（Alt_Txt）％>'  class  =  预览 /> 
。 
。 
。 
。 
 < /   pre  >  

解决方案

试试这个代码

标签a =（图片）e .Item.FindControl（Label1）; 

希望它能帮助..

string imagename =（（Label）ListView1 .Items [e.ItemIndex] .FindControl（ Label1的））的文本;

hi i have ListView with image
in event OnItemDeleting i get id fields and delete from database
and i want delete image from ftp,
i use " Label a = (Label)ListView1.EditItem.FindControl(Label1);" for get name image
but,it''s don''t work

<pre lang="xml">protected void ListView1_OnItemDeleting(object sender, ListViewDeleteEventArgs e)
    {
        int id = int.Parse(ListView1.DataKeys[e.ItemIndex].Value.ToString());

        Label a = (Label)ListView1.EditItem.FindControl(Label1);
.
.
.
.
</pre>

<pre lang="HTML">
 <asp:ListView ID="ListView1"
          DataKeyNames="ID_Pic"
          RepeatColumns="5"
          RepeatDirection="Horizontal"
          DataKeyField="ID_Pic"
          OnItemEditing="ListView1_OnItemEditing"
          OnItemCanceling="ListView1_OnItemCanceling"
          OnItemUpdating="ListView1_OnItemUpdating"
          OnItemDeleting="ListView1_OnItemDeleting"
         runat="server" OnPreRender="ListView1_OnPreRender">
         <LayoutTemplate>
      <div>
      <ul class="hoverbox">
      <asp:PlaceHolder ID="itemPlaceholder" runat="server" />
      </ul>
   </div>
    </LayoutTemplate>
   <ItemTemplate>
   <asp:Label ID="Label1" runat="server" Visible="False" Text='<%# Eval("PinNameMD5") %>'></asp:Label>
   <asp:Label ID="lbl2ID_Pic" runat="server" Visible="False" Text='<%# Eval("ID_Pic") %>'></asp:Label>
   <li>
   <div style="width: auto; height: auto;">
    <a >
  <img src='<%# Eval("PinNameMD5") %>' alt='<%# Eval("Alt_Txt") %>' />
  <img src='<%# Eval("PinNameMD5") %>' alt='<%# Eval("Alt_Txt") %>' class="preview" />
.
.
.
.
</pre>

解决方案

try this code

Label a= (Image)e.Item.FindControl("Label1");

hope it will help..

string imagename = ((Label)ListView1.Items[e.ItemIndex].FindControl("Label1")).Text;

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