图像不显示在datalist中.. [英] Image does not displayed in datalist..

问题描述

我在asp.net工作..这里将以datalist显示图像..但是数据显示者没有显示图像..



< pre lang =xml> < asp：DataList ID = list runat = server OnItemCommand = list_ItemCommand RepeatColumns = 7

< span class =code-attribute> ShowFooter = true ShowHeader = true 宽度 = < span class =code-keyword> 98％ >
< ItemTemplate >
< div align = center >
< span class =code-keyword>< asp：Image ID = img runat = server BorderColor = white BorderWidth = 2 高度 = 100

< span class =code-attribute> ImageUrl =' <％＃
+ Eval（ image）％> ' 宽度 = 100px / >
< asp：HiddenField ID = hf1 runat = server < span class =code-attribute> 值 =' <％ #Eval（ < span class =code-string> id）％> ' / >
< br / >
< span onclick = 返回确认（'您确定要删除此图片吗？'） >
< asp：LinkBut​​ton ID = linkremove runat = server CommandName = 删除 文字 = 删除 > < / asp：LinkBut​​ton >
< / span >
< / div >
< / ItemTemplate >

< / asp：DataList >

我还需要如何删除datalist中的特定图像？

任何人都可以帮助我吗？ ？在此先感谢:)





现在图像正常显示...但是datalist Item命令删除操作没有触发..

 受保护  void  list_ItemCommand（ object  source，DataListCommandEventArgs e）
 {
  try  
 {
  if （e.CommandName ==   Removes）
 {
 HiddenField id1 =（HiddenField）list.Items [e.Item.ItemIndex] .FindControl（  hf1）; 
  if （dbo.deleterecords（  image ，  id =' + id1.Value +  '）==  true ）
 {
 
 BindItemsList（）; 
 lbldel.Text =  图片已删除; 
} 
} 
} 
  catch （例外情况）
 {
异常E =前; 
} 
} 

解决方案

您需要使用处理程序来显示数据库中的图像。以下是可以解释您需求的文章列表：

ASP.NET中的图像处理 [ ^ ]

使用ASP保存和检索数据库中的图像。 NET [ ^ ]





--Amit

为您的datalist添加标签并将其文本设置为''< ％＃Eval（image）％>''并检查它是否显示正确的路径？要删除图像，请使用datalist的itemcommand事件。

Am working in asp.net.. Here am going to display images in datalist.. But the datalist doesn''t show the image..

<asp:DataList ID="list" runat="server" OnItemCommand="list_ItemCommand" RepeatColumns="7"

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

                               ImageUrl='<%# 
 +Eval("image") %>' Width="100px" />
                         <asp:HiddenField ID="hf1" runat="server" Value='<%# Eval("id") %>' />
                           <br />
                           <span onclick="return confirm('Are you sure to Remove this Image?')">
                               <asp:LinkButton ID="linkremove" runat="server" CommandName="Removes" Text="Remove"></asp:LinkButton>
                           </span>
                       </div>
                   </ItemTemplate>

                   </asp:DataList>

Also i need how to delete the particular image in datalist??
Can any one help me?? Thanks in advance :)


Now the image displayed properly... But the datalist Item command delete operation not firing..

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

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

解决方案

You need to use handler to display the images from database. Here is the list of articles which will explain your need:
Image Handling In ASP.NET[^]
Save and Retrieve Images from the Database using ASP.NET[^]


--Amit

Add a label to your datalist and set its text to ''<%# Eval("image") %>'' and check if it is displaying the correct path? To delete the image use datalist''s itemcommand event.

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