设置一个gridview列以包含链接，其中绑定的数据是URL的列表 [英] Setting a gridview column to contain links, where the bound data is a list of URLs

问题描述

我有一个从数据库检索的对象，其中的一个字段是URL.我正在gridview中显示此数据，我希望URL列是一系列链接，上面写着下载"，它指向相应的URL.

I have an object that I retrieve from a database, where one of the fields is a URL. I am displaying this data in a gridview, and I'd like the URL column to be a series of links saying "Download", where it points to the corresponding URL.

我目前有以下内容:

<asp:GridView ID="my_gv" runat="server" AutoGenerateColumns = "false" 
            GridLines="None" Width="100%" AllowSorting="True" 
            CssClass="table table-bordered table-condensed">
            <AlternatingRowStyle BackColor="#F5F5F5" />
            <Columns>
                <asp:HyperLinkField  DataNavigateUrlFields = "location" Text = "Download link" HeaderText = "Download"  />
            </Columns>    
        </asp:GridView>

这似乎不起作用.条目就像链接一样是蓝色的，但是用鼠标悬停实际上不会调用URL(光标不会更改为"link"光标).查看生成的HTML，它们是< a> 标记，但它们不包含 href 属性.为什么?我错过了什么才能使它正常工作?我填充以下内容:

This doesn't appear to be working. The entries are blue like a link, but hovering over with a mouse doesn't actually invoke a URL (the cursor does not change to the "link" cursor). Looking at the generated HTML, they are <a> tags but they contain no href attrivute. Why? What have I missed to allow this to work? I populate with the following:

        private void populateElementView()
        {
            List<MyElement> elements = database.getGeneratedElements();
            // elements has a .location property
            my_gv.DataSource = elements;
            my_gv.DataBind();

        }

有关更多信息，URL指向计算机上的文件.手动插入带有测试" URL的项目实际上是可行的，而实际的文件路径却无效.

For further information, the URLs point to files on a computer. Hand-inserting an item with the url "testing" actually works, while the actual file paths do not.

推荐答案

只需尝试一下，可能会对您有所帮助.在这里，我正在使用 DataNavigateUrlFormatString属性用于

Just try this may be it will help you. Here I am using DataNavigateUrlFormatString Property which is used for

获取或设置一个字符串，该字符串指定呈现HyperLinkField对象中超链接的URL的格式.

<asp:HyperLinkField  DataNavigateUrlFields = "location" Text = "Download link" HeaderText = "Download" DataNavigateUrlFormatString="{0}" />

您可以将文件放在服务器位置，并且位置字段将具有虚拟路径，例如 MusicFiles/File1.avi

You can put your files on server location and your location field will have virtual path like this MusicFiles/File1.avi

现在，您可以将 HyperLinkField 中的网址格式设置为 http://localhost//Download/{0} ，其中{0}表示MusicFiles/File1.avi或您 location 字段值

Now you can format your url in HyperLinkField as http://localhost//Download/{0} where {0} means MusicFiles/File1.avi or you location field value

<asp:HyperLinkField  DataNavigateUrlFields = "location" Text = "Download link" HeaderText = "Download" DataNavigateUrlFormatString="http://localhost//Download/{0}" />

我认为这将在您部署它时为您提供帮助，并且用户可以从服务器上下载文件.

I think this will help you when you deploy it and user can download the files from your server.

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