使用linq在转发器中查看图像 [英] view image in repeater using linq

问题描述

能帮我在使用LINQ绑定到IEnumerable对象的中继器中显示图像吗?

我想在网页中正确查看图像.

Can you please help me to show an image inside a repeater which is bound to an IEnumerableobject using LINQ.

I want to view the image properly in the web page.

推荐答案

在repeater 中查看图像不相关LINQ中的任何内容.

View image in repeater does not relates anything in LINQ.

使用Linq创建IEnumerable List，因此只需使用

Using Linq you create IEnumerable List, so just bind it to the Repeater control using

Repeater.DataSource = IEnumerableObject;
Repeater.DataBind();  

将其绑定到Repeater控件即可查看图像，您需要存储图像到有效位置(可能是一个临时文件夹)/您可以直接在Response Stream中写入.

在ItemDataBound eventhandler中执行此操作.

Now to view image you need to store the image into a valid location (might be a temporary folder) / you can directly write in Response Stream.

Do this in ItemDataBound eventhandler.

protected void rptImages_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
  if (e.Item.ItemType == ListItemType.AlternatingItem || 
                e.Item.ItemType == ListItemType.Item)
  {
string imagename = yourimagename;
HtmlImage imgImage = e.Item.FindControl("img") as HtmlImage;
string imagepath = Path.Combine(Path.Combine(Request.PhysicalApplicationPath, 
"tempImages"), imagename);
if (!File.Exists(imagepath))
      File.WriteAllBytes(imagepath, image.Image);
 imgImage.Src = "~/tempImages/" + imagename;
imgImage.Attributes["title"] = imagename; 
}
}

请记住使用特定图像所需的文件名来修改yourimagename .

我已经使用临时文件夹显示了此内容，您可以使用单独的处理程序轻松对其进行修改，并在响应流中编写整个filebytes .

Remember to modify yourimagename with the filename you want for the particular image.

I have shown this using temporary folder, you can easily modify this using a separate handler and write the entire filebytes in response stream.

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