PostedFile is coming NULL, Iam uploading the file then also coming NULL [Resolved]

Posted by Amatya under C# on 3/14/2016 | Points: 10 | Views : 326 | Status : [Member] | Replies : 3
<input id="UpBattery" runat="server" style="width: 286px" type="file" visible="false" />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Upload" Visible="False" />


Here is my .cs file,(UpBattery.PostedFile is coming NULL.

protected void Button1_Click(object sender, EventArgs e)
{
DataTable dtgridstc = (DataTable)ViewState["GridTab"];
DataTable dtGrid = dtgridstc.Clone();
lblError.Text = "";
lblSuccess.Text = "";
try
{
if (UpBattery.PostedFile.FileName.Length >= 1)
{
HttpPostedFile excelFile = UpBattery.PostedFile;
if (excelFile.FileName.ToUpper().EndsWith(".XLS") == false)
{
lblError.Visible = true;
lblError.Text = "This is not a valid Battery Details File[Not an MS Excel File]";
return;
}


Help as soon as possible
Thanks in Advance

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Responses

Posted by: Sheonarayan on: 3/14/2016 [Administrator] HonoraryPlatinum | Points: 50

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Here are some change

1. Instead of checking for PostedFile property, check for UpBattery.HasFile property to know whether the file has been selected.

2. Use FileUpload1.FileName directly to get the file name. Do not use PostedFile.

Looks like in the recent version, MS has done some changes, and PostedFile doesn't work as expected.

Hope this helps.

Thanks

Regards,
Sheo Narayan
http://www.dotnetfunda.com

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Posted by: Amatya on: 3/16/2016 [Member] Bronze | Points: 25

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Then also its not working SheoNarayan Sir.

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Posted by: Amatya on: 3/16/2016 [Member] Bronze | Points: 25

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Its solved sir, actually the code was in Update Panel, I removed update panel and now its working.


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