FileUpload Control Works On Server But Not For Clients
Oct 18, 2010
I have a strange thing going on with the .net fileupload control. If I remote desktop to the server that houses the web app and db server, I am able to upload files and store them into a varbinary(max) column.
However, when clients connect to the web server from their desktop, then can do all the things they need to such as browsing web pages, fill out forms that store/save data to the database, etc.
However, when they try to upload a pdf to the sever, the following exception occurs: The web app uses .net 3.5, the db is sql 2005, and code is c#. And insights would be welcomed. Code and Exception below.
[Code]....
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Similar Messages:
Oct 12, 2010
I have 2 custom validator controls on my page but for some strange reason the Custom Validator for FileUpload control works and the custom validator for TextBox control does not work. Here is the aspx code:
<asp:FileUpload ID="_fileCv" runat="server" Width="500px" /><br />
<asp:RequiredFieldValidator ID="_rfvFileCv" runat="server" ErrorMessage="Resume; " ControlToValidate="_fileCv" SetFocusOnError="True" ValidationGroup="APPLY">
<img src="images/mandatory.gif" alt="Required" /></asp:RequiredFieldValidator
<asp:CustomValidator ID="CustomValidator1" runat="server" ControlToValidate="_fileCv"
ErrorMessage="Max file size for documents is 4MB." OnServerValidate="CustomValidator1_ServerValidate" ValidationGroup="APPLY"></asp:CustomValidator>
<asp:TextBox ID="_txtHealthComments" runat="server" TextMode="MultiLine" Rows="5" Width="500" />
<asp:CustomValidator ID="CustomValidator2" runat="server" ControlToValidate="_txtHealthComments"
ErrorMessage="Kindly enter health Comments ." OnServerValidate="CustomValidator2_ValidateHealth" ValidationGroup="APPLY"></asp:CustomValidator>
Here is the code behind:
protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args) {
if (_fileCv.FileBytes.Length > 4194304) {
args.IsValid = false;
} else { args.IsValid = true; } }
protected void CustomValidator2_ValidateHealth(object source, ServerValidateEventArgs args) {
if (_rdoHealth.SelectedValue == "1" && _txtHealthComments.Text == "") {
args.IsValid = false; } else { args.IsValid = true; } }
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Feb 17, 2011
How to get data (read file) chosen in FileUpload control without FileUpload.SaveAs Method on the server? Is it possible write it at once to some object?
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Sep 30, 2010
Does anyone knows why HttpContext.Current.Server.MapPath within a server control works when I run the server control but gives and error whilst in Design mode?
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Aug 31, 2010
I m getting a problem while executing the following code for my website.
This code works perfactly on localhost but when I use d same code on my webpage on the server it does nothing...even it doesnt return any error msg.
[code]....
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Nov 4, 2010
I need some help to figure out how to check if a file already exist in the db. My mind is froze. I am using sqlserver 2005, vb.net and vs 2008, not that matter for this quesiton, but in case if you deem necessary. I have an fileupload control and all I am trying is to check if the uploaded file already exist in my webserver or db. I am saving the file to the file directoy but I have the file name stored in the db. So I want to check the file name in the db for duplication. If it exisist I will not save the details. How do I do this.
Dim conn As New SqlConnection(resumeDatasource.ConnectionString)
If Exists("select EmailAddress,IPAddress,fleName from Resume where fleName =" & " 'strflename'") Then
MsgBox(" file already exisist", MsgBoxStyle.OkOnly)
Exit
Else
MsgBox(" thank you for uploading your file", MsgBoxStyle.OkCancel)
End If
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Mar 15, 2011
I'm using the FileUpload server control to upload a HTML document previously saved(as webpage; filtered) from MS Word. The charset is windows-1252.The document has smart quotation marks(curly) as well as regular quotes. It also has some blank spaces(apparently) that when looked deeply are characters other than the normal TAB or SPACE.When capturing the file content in a StreamReader, those special characters are translated to question marks. I assume its because the default encoidng is UTF-8 and the file is Unicode.
I went ahead and created the StreamReader using Unicode encoding, then replacing all the unwanted characters with the correct ones(code that I actually found in stackoverflow). This seems to work....just that I cant convert the string back to UTF-8 to display it in a asp:literal.
The code is there, its supposed to work....but the output(ConvertToASCII) is unreadable.Please look below:
protected void btnUpload_Click(object sender, EventArgs e)
{
StreamReader sreader;
[code]...
Also, as I said before, there are some more "transparent" characters that seem to correspond to where the word doc has numbering indentation that I have no idea how to capture their unicode value to replace them....so if you have any tips,
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Jun 27, 2012
I have Fileupload control in my page
1-i want delete the text that is beside of fileupload button text: no file choesn
2-i want change text of file upload button( I want change Choose file text)
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Oct 14, 2010
I have a FileUpload control in an UpdatePanel and when user select a file, the full file path will will be stored in a hiddenfield, and during postback, i would like to assign the full file path in the hiddenfield back to the FileUpload control textbox, possible to achieve that?
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Dec 27, 2010
I am using Visual Studio 2008 and SQL Server 2005 as my back-end.I saw this topic is already introduced in StackOverflow but I have different question related to this topic.I just want to directly get the file from my server/hard-disk and save it in the database.
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Feb 23, 2011
I'm trying to use an asp:FileUpload Control to allow users to upload files (.doc, .gif, .xls, .jpg) to a server that is outside of our DMZ and not the Web Server. We want to have the ability to look at these files for viruses, structure, etc prior to saving them into another directory that would allow access to outside users. From what I have read about this control is that it will allow for files to be uploaded to the web server. Can this control be used to upload files to a server other than the web server? If it can be done where should I look for this type of functionality or how do I force it to go to https:servernamefolder name (Where server name is not the web server)? Would I have to read the file then write it to the other server?
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Feb 11, 2011
In continuation to my previous research at this link : Security Risks or concerns with the use of FileUpload control of asp.net - how to Scan files during upload, also how to intimate user if file is virus affected and abort the operation. In addition to above, we have McAfee Antivirus installed on our servers. I heard that there is some APIS for this work for Symantac Antivirus but I am not sure about McAfee antivirus.
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Sep 8, 2010
i want to upload file to web server without using fileupload control...
here is issue is that i have static path and using that path i want to upload that file to web server..
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Aug 17, 2012
I use these code in my page_load event
while (_dr.Read())
{
txtarticle.Text = _dr["Name"].ToString();
CKEditorControl1.Text = _dr["Description"].ToString();
And this is my table in database
pdf Description Name ID
Article.pdf Test1 Article1 1
Article2.pdf Test2 Article2 2
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Aug 7, 2010
[Code]....
Public Sub CustomValidator1_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs) Handles CustomValidator1.ServerValidate
' Get file name
Dim uploadAvatar As FileUpload = DirectCast(AdvertisementForm.FindControl("uploadAvatar"), FileUpload)
Dim UploadFileName As String = uploadAvatar.PostedFile.FileName
If UploadFileName = "" Then
' There is no file selected
args.IsValid = False
Else
Dim Extension As String = UploadFileName.Substring(UploadFileName.LastIndexOf(".") + 1).ToLower()
If Extension = "xls" Or Extension = "xml" Then
args.IsValid = True ' Valid file type
Else
args.IsValid = False ' Not valid file type
End If
End If
End Sub
<table>
<div>
<td><asp:FileUpload ID="uploadAvatar" runat="server" /></td>
<td><asp:LinkButton ID="BtnUpdate" runat="server" CausesValidation="True"
CommandName="Update" Text="Update" CssClass="updatebutton" OnClientClick="ValidateFileUpload();" /></td>
<asp:CustomValidator ID="CustomValidator1" runat="server"
ClientValidationFunction="ValidateFileUpload"
ErrorMessage="Please select valid .jpg or .bmp file" ></asp:CustomValidator>
<td><asp:LinkButton ID="LinkButton2" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" CssClass="cancelbutton" /></td>
</tr>
</div>
</table>
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Feb 13, 2011
I use aspFileUpload server control to upload files in my web site. Every things work properly. But when my web site run from iis server, I can't upload files and The error is appear: The access denied. If i set modify permision to Everyone group i can upload file but i can't delete it from my web site.
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Sep 6, 2010
i get this error with this code
private void Showroom(String Description, int at)
{
Panel pnl = new Panel();
[code]...
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Feb 6, 2014
[URL] .... I referred the article it works on local machine. But when i tried for online it gives access denied when saving image.
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Mar 22, 2011
I have a web application, where users will see notifications for their new messages, I want to push the notifications to the users who are already logged in.I have seen that I can do it using Server Push of PokeIn, I have tried and understood the simple application using it, but I am not getting the ClientID thing.The ClientId it saves in "OnClientConnected" is a simple integer, so how does it recognizes clients and calls functions on them ?
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Aug 23, 2010
I'm making an application with server sided variables that change every second. Every second those new variable need to be shown at all the clients that have the webpage open. Now most people told me to go with comet because I need to push/pull the data every second, now I've got a few questions: What would be a better solution looking at the fact that I need the new data EVERY SECOND, pulling from the client or pushing with the server?
Also the item ID's that are on the server side (with the variable's that ID got) can change and when the client refreshes the page he needs to get the oldest (and living) ID's. This would mean that my jquery/javascript on the client side must know which ID's he got on the page, what is best way to do this? Last thing is that I can't find a good (not to expensive) comet library/api for asp.net (C#). Anyone ever used a comet library with good results? We're looking at a site that should be able to have 2000 comet connections at every moment.
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Apr 9, 2010
I'm a newbie in asp.net (and vb.net)..
I have an application which will sent an automatic email from my company mail server to all the client/employee in my company every week. how to make this happen... everytime i applied the codes that i'm searching in google always give me some errors cause it always discuss how to send email to outside the company...
How can i achieve this goal ? what codes should i use ?
Note : i'm using vb.net 2005 and microsoft office outlook
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Aug 16, 2010
i'm developing a system with asp.net, there i generate a powerpoint presentaion in the server machine, i need to generate it there and save it in the clients machine, how can i achieve this? how to access the clients machine and save the generated file there?
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Sep 14, 2010
I am having an issue where if I click on the print icon in the report viewer embedded in an application, I get the error "unable to load client print control". However, when running through report manager, this is fine. I am running SQL Server 2005 SP3 and report viewer 9.
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Feb 23, 2011
i want show an image in image control as user select an image file through fileupload control. and i not want saving image on the my server
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Jul 5, 2010
We have created a windows application which is distributed amongst our clients. The application uses SQL Server 2008 as the back end and each client uses their own database on their own server. The databases are all exactly the same but each clients data is specific only to them.
We would like to offer our clients the ability to log-in to our website which would then login to their own database so that when they are out in the field they can perform similar tasks to what they can do with the windows app.Each of the clients databases has a user table containing their login details, permissions etc.
Our server is running on IIS and has SQL Server 2008 installed but it only contains our data and nothing of the clients.How should we go about this?
What I mean is do we need to make each client have an additional login to our main server which would then hold each clients individual connection strings etc which would then be used to connect to there specific database and then they would need to login again?? Seems like a nightmare for the user.
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