Question

我正在尝试通过以下代码将图像存储到数据库，但是它通过异常“NullReference exception”。当我调试这段代码时，'postedFile'为空......提前致谢

protected void btnAddUser_Click(object sender, EventArgs e)
{
    userName = tbxUserName.Text;
    password = tbxPassword.Text;

    HttpPostedFile postedFile = FileUpload1.PostedFile;
    string fileName = Path.GetFileName(postedFile.FileName);
    string fileExtension = Path.GetExtension(fileName);

    Stream stream = postedFile.InputStream;
    BinaryReader binaryReader = new BinaryReader(stream);
    byte[] bytes = binaryReader.ReadBytes((int)stream.Length);

    string queryInsert = "insert into smart_shop.users(name,password,image) values('" + userName + "','" + password + "','" + bytes + "');";
    dbObject.QueryFeeder(queryInsert);
}

Answer 1

最有可能的是，您需要添加enctype =＆＃34; multipart / form-data＆＃34;到你的表格标签。

实施例： ng-click="hideBox()"

ASP.NET将图像存储在数据库中

1 个答案: