从文件上传控件中选择图像时，在图像控件中预览图像 [英] Preview the Image in Image Control when I Select Image from File Upload Control

问题描述

尊敬的荣誉

我在asp.net页面和Image Control上都有FileUpload控件.

我在哪里显示在服务器上上传的图像.

当我在服务器上上传之前在FileUpload控件中单击浏览"时，我想要该图像显示.

我像下面的代码一样将图像保存到数据库中.

在Image控件中显示图像时，如何将图像存储到数据库中?

这是我的代码，

Dear Honors

I have FileUpload control on my asp.net page and Image Control.

Where I show image which is uploaded on server.

I want that Image show ,when I click on Browse in FileUpload control before I upload on server.

I save the image into database like the following code.

How can I store the image into database while the image displaying in Image control?

Here My Code,

protected void btnSave_Click(object sender, EventArgs e)
   {


       SqlConnection connection = null;
       try
       {
           FileUpload img = (FileUpload)fupImage;
           Byte[] imgByte = null;
           if (img.HasFile && img.PostedFile != null)
           {

               HttpPostedFile File = fupImage.PostedFile;

               imgByte = new Byte[File.ContentLength];

               File.InputStream.Read(imgByte, 0, File.ContentLength);

           }

           SqlCon = objDB.ufDBConnection();


           string sql = "INSERT INTO tblImage(EmpImage) VALUES(@EmpImage)";
           SqlCommand cmd = new SqlCommand(sql, SqlCon);
           cmd.Parameters.AddWithValue("@EmpImage", imgByte);
           int id = Convert.ToInt32(cmd.ExecuteScalar());

       }
       catch
       {
           Label1.Text = "There was an error";
       }
   }

推荐答案

指定用于图像控制的图像url属性，并且该url应该是您发布的文件url.

specify image url property for image control .and that url should be your posted file url.

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