CODEWITHSUNDEEP
c#asp.net
Evgeny Sdvizhkov
Evgeny Sdvizhkov

Reputation: 61

request file not working in asp.net

i need to request file from fileupload that is created in html. my question is quite simple how do i do this? i know there is this option : HttpPostedFile File = Request.Files["imagem"]; but when i try to do that my File returns NULL. I dont know what am i doing wrong, but even this simple code example is not working and i dont know why . 

<body>
    <form id="form1" runat="server">
    <div>
    protected void Button1_Click(object sender, EventArgs e)
        {
            HttpPostedFile File = Request.Files["imagem"];
      if ( File != null)
     Response.Write("Sucesso");
    }
   </form>
</body>

and here is my aspx code example : 

  <input type="file" name="image"  class="image-upload" /></div>
 <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

can any one explain what am i doing wrong ? thank you

Upvotes: 0

Views: 2977

Answers (2)

user4843530
user4843530

Reputation:

I'd recommend going with the asp.net file upload control:

<asp:FileUpload ID="pictureUpload" class="form-control input-sm input-spacing" runat="server" />

You can create these dynamically

FileUpload OneUpload = new FileUpload();
OneUpload.ID = "Upload" + MyIdNumber;
UploadsDiv.Controls.Add(OneUpload);

Then to access the file, you have:

pictureUpload.SaveAs(FilePathAndName);

You can also access different properties of the posted file...

pictureUpload.PostedFile.FileName
pictureUpload.PostedFile.ContentLength
pictureUpload.PostedFile.ContentType

Upvotes: 0

David Lee
David Lee

Reputation: 2100

Might just be a typo on here, but change your imagem to image

protected void Button1_Click(object sender, EventArgs e)
{
    HttpPostedFile File = Request.Files["image"];

    if ( File != null)
        Response.Write("Sucesso");
}

In your aspx page you need to tell the form that it will be using files. I don't think its required but its good practice to also include an id in your input that matches your name.

<body>
    <form id="form1" runat="server" method="post" enctype="multipart/form-data">
        <input type="file" id="image" name="image"  class="image-upload" />
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    </form>
</body>

Upvotes: 1

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