将图像url插入到asp.net中的图像控件id属性中 [英] Insert image url to image controls id attribute in asp.net

问题描述

我的asp.net网页上有很多图片控件，我在我的数据库中存储了图片网址，因此我在其中创建了字符串数组和已恢复的图片网址因此，我想在图片控件中插入网址image.imageurl。



如何使用循环？

由于我有许多图像控件要使用多行代码。

I have many image controls on my asp.net web page and I have stored image urls in my database , so I have created string array and retrived image urls in it So, i want to insert the url in the image control using image.imageurl.

How to do it using loop ??
As I have many image controls to use many lines of code.?

推荐答案

<td id="data"  runat="server"">

string html="";
foreach(DataRow row in dt.Rows)
{
html+="<tr>";
html+="<td><img src="+row[0].ToString()+"></td>";
html+="</tr>";
}
data.innerHtml=html;
</td>

设计视图

< asp：repeater id =imagerunat =serverxmlns：asp =＃unknown>

< itemtemplate>

< asp： image id =Image1runat =serverimageurl =<％＃Eval（img_url，〜image ={0} =0.jpg）=％& gt; =>











CS编码

名称空间

Design view
<asp:repeater id="image" runat="server" xmlns:asp="#unknown">
<itemtemplate>
<asp:image id="Image1" runat="server" imageurl="<%#Eval(" img_url","~image="" {0}="" 0.jpg")="" %&gt;"="">





CS coding
namespace

using System.Web.Configuration;
using System.Data;

protected void bind_links()
    {
        string query = "select * from img_url ";
        string constring=WebConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (SqlConnection conn=new SqlConnection(constring))
        {
            using (SqlCommand comm=new SqlCommand(query))
            {
                using (SqlDataAdapter da=new SqlDataAdapter())
                {
                    comm.Connection = conn;
                    da.SelectCommand = comm;
                    using (DataTable dt=new DataTable())
                    {
                        da.Fill(dt);
                       image.DataSource = dt;
                        image.DataBind();
                    }
                }

            }

        }
    }

试试这个

Try This

DataTable dt = new DataTable();
Image[] img = null;
foreach (DataRow row in dt.Rows)
{
    int len = 0;
    if (img.Length > 0)
        len = img.Length;
    Array.Resize(ref img, len+1);
    img[len].ImageUrl = row["imageUrl"].ToString();
}

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