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I am trying to upload a file to server from html post.

<form action="insertBlogCat.aspx" method="post" enctype="multipart/form-data"> <input id="uploader" name="userfile" type="file" /> <br /><br /> <input type="submit" value="Upload" id="pxUpload" /> <input type="reset" value="Clear" id="pxClear" /> </form>

My server side code:

protected System.Web.UI.HtmlControls.HtmlInputFile CatBlogImgFile; private void Insert() { if ((CatBlogImgFile.PostedFile != null) && (CatBlogImgFile.PostedFile.ContentLength > 0)) { string fn = System.IO.Path.GetFileName(CatBlogImgFile.PostedFile.FileName); string SaveLocation = Server.MapPath("Data") + "\\" + fn; try { CatBlogImgFile.PostedFile.SaveAs(SaveLocation); Response.Write("The file has been uploaded."); } catch (Exception ex) { } } else { Response.Write("Please select a file to upload."); } }

But CatBlogImgFile.PostedFile value is always null after posting from HTML file. PLease help. Thanks in advance.

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2 Answers 2

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You can't mix normal HTML elements and server-side controls like that.

Either use ASP.Net WebControls in the ASPX page (<asp:FileUpload />), or use the Request object directly and don't use server-side controls at all (Request.Files)

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You may want to see if the Request.Files collection has any content. Normally in WebForms, you'd use a different control for doing uploads.

You may also want to look over the MSDN article: How to: Add HTML Server Controls to a Web Page Using ASP.NET Syntax . The main thing you're missing is the runat="server" part.

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