ASP.NET，如何在detailsview内绑定文件上传控件? [英] ASP.NET , How to Bind fileupload control inside detailsview ?

问题描述

嗨

我在mssql中有一个常规数据库，该数据库具有Products表，Products中的字段之一是"ImgURL"，我想将该字段绑定到DetailsView中的FileUpload控件.

如何完成的?

我已经在需要时将所有标签的ImgUrl Filed模板化为FileUpload控件.

Hi

I''ve got regular DB in mssql that has Products table , one of the fields inside Products is "ImgURL" , I want to bind that field to FileUpload control inside the DetailsView .

How its done ?

I already templated the ImgUrl Filed from all label to FileUpload control when needed.

<pre lang="xml"><asp:DetailsView ID="DetailsView1" runat="server" Height="50px" Width="125px" AutoGenerateRows="False"
       DataKeyNames="ProductID" DataSourceID="EntityDataSource1"
       AllowPaging="True" BackColor="LightGoldenrodYellow" BorderColor="Tan"
       BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None"
       oniteminserted="DetailsView1_ItemInserted"
       onpageindexchanged="DetailsView1_PageIndexChanged">
       <AlternatingRowStyle BackColor="PaleGoldenrod" />
       <EditRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />
       <Fields>
           <asp:BoundField DataField="ProductID" HeaderText="ProductID" ReadOnly="True" SortExpression="ProductID"  />
           <asp:BoundField DataField="ProductName" HeaderText="ProductName" SortExpression="ProductName" />
           <asp:TemplateField HeaderText="CategoryID" SortExpression="CategoryID">
               <EditItemTemplate>
                   <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="EntityDataSource2"
                       DataTextField="CategoryName" DataValueField="CategoryID" Text=''<%# Bind("CategoryID") %>''>
                   </asp:DropDownList>
               </EditItemTemplate>
               <InsertItemTemplate>
                   <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="EntityDataSource2"
                       DataTextField="CategoryName" DataValueField="CategoryID" Text=''<%# Bind("CategoryID") %>''>
                   </asp:DropDownList>
               </InsertItemTemplate>
               <ItemTemplate>
                   <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="EntityDataSource2"
                       DataTextField="CategoryName" DataValueField="CategoryID"  Text=''<%# Bind("CategoryID") %>''>
                   </asp:DropDownList>
               </ItemTemplate>
           </asp:TemplateField>
           <asp:BoundField DataField="UnitPrice" HeaderText="UnitPrice" SortExpression="UnitPrice" />
           <asp:BoundField DataField="UnitsInStock" HeaderText="UnitsInStock" SortExpression="UnitsInStock" />
           <asp:BoundField DataField="UnitsOnOrder" HeaderText="UnitsOnOrder" SortExpression="UnitsOnOrder" />
           <asp:TemplateField HeaderText="ImageUrl" SortExpression="ImageUrl" >
               <EditItemTemplate>
               <asp:FileUpload ID="FileUpload1" runat="server"  />
               </EditItemTemplate>
               <InsertItemTemplate>
                   <asp:FileUpload ID="FileUpload1" runat="server"/>
               </InsertItemTemplate>
               <ItemTemplate>
                   <asp:Label ID="FileUpload1" runat="server"  DataSourceID="EntityDataSource1" Text=''<%# Bind("ImageUrl") %>''/>
               </ItemTemplate>
           </asp:TemplateField

>

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推荐答案

绑定图像时，您不会像以前那样使用text =''''(Text =''<％#Bind("ImageUrl)％>)，使用Filebytes =''<％#Bind(" ImageUrl)％>

when binding images, you don''t use text='''' like you did (Text=''<%# Bind("ImageUrl") %>), use Filebytes=''<%# Bind("ImageUrl") %>

如果使用Google，可能会找到一些方法.

If you Google it, you might find some ways to do it.

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