Reputation: 30
FileUpload shows null file when uploading image in ASP.NET C#. My page is connected with a master page so when i click on upload button FileUpload control shows null file but when i use it without master page file upload successfully, please tell me how to short out this problem. I am using this code.
<table>
<tr>
<td>Enrollment Id</td>
<td>:</td>
<td>
<asp:TextBox ID="txtEnrollmentNo" runat="server" CssClass="text" AutoPostBack="true" OnTextChanged="txtEnrollmentNo_TextChanged"></asp:TextBox>
</td>
<td></td>
</tr>
<tr>
<td colspan="4" style="font-weight:bold; text-align:center;">
Student Details
</td>
</tr>
<tr>
<td colspan="3" style="background-color:#eee; padding:5px;">
Upload Photo
</td>
</tr>
<tr>
<td colspan="3">
<asp:Image ID="imgPhoto" runat="server" CssClass="imageUpload" />
</td>
<td></td>
</tr>
<tr>
<td colspan="3">
<asp:FileUpload ID="fileUploadPhoto" runat="server" onchange="readPhotoURL(this)" />
</td>
<td></td>
</tr>
</table>
<div class="commonArea">
<asp:Button ID="btnSubmit" runat="server" Text="Upload & Save" TabIndex="3" onclick="btnSubmit_Click" />
</div>
Code behind using
protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
string extension = Path.GetExtension(fileUploadPhoto.PostedFile.FileName);
fileUploadPhoto.PostedFile.SaveAs(Server.MapPath("~/StudentImages/Photo/") + txtEnrollmentNo.Text + extension);
MessageBox("success", txtEnrollmentNo.Text);
}
catch (Exception ex)
{
MessageBox("error",ex.Message);
}
}
Upvotes: 0
Views: 2052
Reputation: 1034
Please check that your master page doesn't contain update panels and doesn't use asp .net ajax as it is the most known reason for this problem.
Upvotes: 1