如果文件字段为空，则需要传递默认图像. [英] If file field is empty, I need to pass the default Image.

问题描述

我在我的应用程序中有一个图像字段，如果用户传递了图像，则将其存储到数据库中，并且可以正常工作.现在我的问题是，如果用户不传递图像，那么我需要传递存在于我的图像文件夹中的默认图像.我已经写了如下代码....

Hi,

I am having a image field in my app, if the user pass the image, i am storing it to the database and its working fine. Now my problem is, if the user not pass the image, then i need to pass the default image that is present in my images folder. I have written the code like....

if (fuDoctorImage.HasFile)
                {
                    byte[] img = new byte[fuDoctorImage.PostedFile.ContentLength];
                    HttpPostedFile DocImg = fuDoctorImage.PostedFile;
                    DocImg.InputStream.Read(img, 0, fuDoctorImage.PostedFile.ContentLength);
                    SqlParameter Uploading = new SqlParameter("@Image", SqlDbType.Image);
                    Uploading.Value = img;
                    Dcmd.Parameters.Add(Uploading);
                    Dcmd.Parameters.AddWithValue("@ImageName", fuDoctorImage.FileName);
                }
                else
                {
                    //I need the code for this section that pass the default image.
                }

请帮帮我..我的数据库中有两个字段
ImageType nvarchar(20)null;
图片图片null；

Please help me out.. I am having two fields in my database
ImageType nvarchar(20) null;
Image image null;

推荐答案

hi，
在您的else 部分中，将默认图像转换为字节，然后像这样传递到数据库:

in your else section convert the default image into byte and pass to database like this:

FileStream fs = new FileStream(fuDoctorImage.FileName, FileMode.Open, FileAccess.Read);
               BinaryReader br = new BinaryReader(fs);
               byte[] image = br.ReadBytes((int)fs.Length);
               br.Close();
               fs.Close();

并像
一样传递

and pass it like

Uploading.Value = image;

希望对您有帮助.

hope it will help you.

这篇关于如果文件字段为空，则需要传递默认图像.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！