如何动态显示datalist中的数据类型'image' [英] How to display datatype 'image' in datalist dynamically

问题描述

我能够在以下代码中动态显示datalist中的表列。

但是我无法显示名为'picture_file'的'image'列（二进制格式）

在同一个dtalist1中。任何人都可以帮我吗？



< form id =form1runat =server>

I am able to display columns of tables in datalist dynamically in the following code.
However I am unable to display the 'image' column (binary format)named as 'picture_file'
in the same dtalist1. Can anyone help me out?

<form id="form1" runat="server">

< asp：DataList ID =Datalist1runat =serverDataKeyField =item_codeRepeatDirection =Horizo​​ntal

RepeatLayout =表>

< HeaderTemplate>

< / HeaderTemplate>

< itemtemplate>

项目代码：

< asp：Label Id =Itmcodelblrunat =serverText ='<％＃Eval（item_code）％>'>






物品名称：

< asp：Label Id =Itmnamelblrunat =serverText =' <％＃Eval（item_name）％>'>






详情：




< asp：TextBox Id =TB1runat =serverText ='<％＃Eval（item_desc）％>'

Height =94ReadOnly =trueTextMode =MultiLineBorderStyle =None>






< asp：图片ID =imgru nat =server

ImageUrl ='<％＃〜/ Picture_file.aspx？Id =+ Eval（item_code）％>'

style =border：1px solid grey;高度=136px宽度=158px/>

<asp:DataList ID="Datalist1" runat="server" DataKeyField="item_code" RepeatDirection="Horizontal"
RepeatLayout="Table">
<HeaderTemplate>
</HeaderTemplate>
<itemtemplate>
Item code:
<asp:Label Id="Itmcodelbl" runat="server" Text='<%#Eval("item_code") %>'>



Item Name:
<asp:Label Id="Itmnamelbl" runat="server" Text='<%#Eval("item_name") %>'>



Particulars:


<asp:TextBox Id="TB1" runat="server" Text='<%#Eval("item_desc") %>'
Height="94" ReadOnly="true" TextMode="MultiLine" BorderStyle="None">



<asp:Image ID="img" runat="server"
ImageUrl='<%#"~/Picture_file.aspx?Id="+Eval("item_code") %>'
style="border:1px solid gray;" Height="136px" Width="158px" />

List<string> adds7 = new List<string>(); //
       SqlDataAdapter da7 = new SqlDataAdapter("SELECT item_code,item_name,item_desc,picture_file FROM item", con);
       SqlCommandBuilder cb7 = new SqlCommandBuilder(da7);
       DataSet ds7 = new DataSet("member");
       da7.Fill(ds7, "member");
       for
           (
           int i = 0; i < ds7.Tables[0].Rows.Count; i++)
       {
           adds7.Add(ds7.Tables[0].Rows[i].ItemArray[0].ToString());
       }
       Datalist1.DataSource = ds7.Tables[0];
       Datalist1.DataBind();
       Datalist1.Visible = true;

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