C# - Way To Overwrite Upon Fileupload
Mar 25, 2011
way to overwrite any contents of a folder upon fileupload even if the filename isnt the same? I only want one image stored at anygiven tim, but I have no way of knowing what filename the user may upload so how would you overwrite in my code below?
if (FileUploadControl.HasFile)
{
try
{
string theUserId = Session["UserID"].ToString();
OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver};
[code]...
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Sep 2, 2010
With the following code:
protected void Button1_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
[Code]....
I want to make it so that if the file exists it changes the name of it, is there any built in functionality for this? Classic ASP had a parameter so that when you upload say house.jpg, and then again it would become house(1).jpg etc etc which was useful.
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May 24, 2010
where i created a usercontrol that has a dropdownlist but when setting the dropdownlist selected index in the page_load it was not updating on the postbacks to the new index but first loading was ok.until i implemented the method for modifying the usercontrol in the onprerender and then it was updating the indexwhy was the control intialized to its original state without using the overidden prerender method?
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Jan 7, 2010
I am using form authentication and in my web.config file I put the login url as "login.aspx".. Every time when the user goes to member area, it will return to that login.aspx if the user has not logged in yet.
However, there's one part in my web application that if the non-members clicks "Search" button, it's trying to access the search result asp.net page in my member folder/area. I want to take them to the registration page rather than the login page. How can I overwrite the form authentication login url?
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Jun 21, 2010
How to "overwrite existing log file" ??? I have tried to set attribute property <appendToFile value="false" />. but still log file is not getting overwrite. My config file setting is as follow:
<log4net>
root>
<level value="DEBUG" />
<appender-ref ref="LogFileAppender" />
</root>
[code]...
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Mar 30, 2011
i am using html.textboxfor to display the amount (int) from my model. currently once the form is shown, the default amount is = 0. i wish to have the default set as 1, is it possible to overwrite the default for html helper??
[Code]....
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Jul 21, 2010
We recently migrated applications from one web server to another. Previously they could upload files to the server and if it already existed, it would over write with the new one.
Now I have to manually delete the file from the server so they can upload a new one. If I delete it they can upload a new one and even upload one to overwrite the one they uploaded. But only after I delete the "migrated" one.
All of the security is correct. ASPNET and IIS_WPG have permissions.
Da Code:
If System.IO.File.Exists(UploadLoc + Me.FileUpload_PDF.FileName) Then
System.IO.File.Delete(UploadLoc + Me.FileUpload_PDF.FileName)
End If
Me.FileUpload_PDF.SaveAs(UploadLoc + Me.FileUpload_PDF.FileName)
I get the dreaded "access to the file is denied"
Update: I find if I give "USER" modify rights it works, but that does not seem secure.
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Apr 23, 2010
What is the best way to implement an edit page to allow only one user to modify data at a time. For example, if User A is on the edit page, no other user will be enter the page in edit mode until UserA is done editing.
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Jul 26, 2010
How would I NOT overwrite a file if it exists on the server already using the AsyncFileUpload control?
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Jan 7, 2011
When a user types a value into a TextBox that has a MaskedEditExtender attached to it, the current input is overwritten. It is however required that the input is appended to the existing value, which is the normal behaviour of a TextBox. Is there a property or setting to enable the normal input behaviour?
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Aug 5, 2013
I want if a file exists then it ask for "do u want 2 overwrite ?" with yes or no confirmation ,,, if yes then overwrite otherwise not.
I want to do this with of ConfirmationExtender with a textbox because the user can enter some info like who is the user and overwrite on what reason.
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Jan 4, 2010
Is there a way to do this in either scalar function form or in an aggregate function form? The problem I'm dealing with is building a security system with multiple tiers of inheritable permissions. Like you'll inherit certain permissions form the department level and then certain permissions from the supervisor level. I'd like to find a way to produce these resultsFor user permissions I pull these binary values and get these results, (they are sorted by their tree node depth level in the hierarchy.
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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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Mar 7, 2010
Is there a way to do this in either scalar function form or in an aggregate function form? The problem I'm dealing with is building a security system with multiple tiers of inheritable permissions. Like you'll inherit certain permissions form the department level and then certain permissions from the supervisor level. I'd like to find a way to produce these results
For user permissions I pull these binary values and get these results, (they are sorted by their tree node depth level in the hierarchy.)
[code]....
Does it look like I will be stuck with manually compiling the tables of departmentpermissions and supervisorpermissions base on every possible outcome of inherited permissions or is there a way to do this on the fly in an efficient manner?
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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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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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Mar 19, 2010
I m using FileUpload Control , when i click the fileupload text box , Choose file window have to open.
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Jan 15, 2010
Hopefully someone can give me some pointers to get this working properly.
I have a webpage which I would like the ability to upload files to be stored in a database. Here's the layout of the page:
[code]....
The update panel is configured as such:
ChildrenAsTriggers="True" EnableViewState="True" RenderMode="Block" UpdateMode="Always" Visible="True" Runat="Server"
The reason I have the update panel outside the Tabcontainer is so that when switching between tabs, the screen doesn't flicker with refreshes, etc. But as a result, I can't get the FileUpload working properly. The FileUpload1.Filename is blank, so it errors out.
Is there anyway to get this working properly? I've tried the latest AsyncFileupload within the control toolkit, but this caused all kinds of problems with my pages so that's out of the question. I tried an iFrame too, but this also didnt work properly.
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Jul 15, 2010
I m having little misunderstanding that how basepage inheritance work in asp.net. I saw this example [URL] and others and I just have questions to get better understanding on the articles: Do we always need override type function in base page even if we dont want to overwrite in child page. What is the purpose of "MyBase.OnLoad(e)"?
' -- VB.NET
Public Class MyBaseClass
Inherits System.Web.UI.Page
Protected Overrides Sub OnLoad(ByVal e As EventArgs)
'... add custom logic here ...
'Be sure to call the base class's OnLoad method!
MyBase.OnLoad(e)
End Sub
End Class
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Jun 13, 2012
I hv a file upload control which save files in folder upload_html. When I upload file of same name which already exists upload_html folder it does't replace that file.........
I want that file to be replaced from that folder.............
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Apr 12, 2010
im using following code to upload
protected void UploadButton_Click(object sender, EventArgs e)
{
if(FileUploadControl.HasFile)
{
try
{
string filename = Path.GetFileName(FileUploadControl.FileName);
FileUploadControl.SaveAs(Server.MapPath("~upload/") + filename);
StatusLabel.Text = "Upload status: File uploaded!";
}
catch(Exception ex)
{
StatusLabel.Text = "Upload status: The file could not be uploaded. The following error occured: " + ex.Message;
}
}
}
i want to cahnge upload file name...i have to assign file name for every uploaded file how?
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Oct 6, 2010
I'm trying to write a simple file upload page using ASP MVC2.I've read some blog post so I started like this
foreach (string file in Request.Files) { HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase; f (hpf.ContentLength > 0) { tring filePath = Path.Combine(HttpContext.Server.MapPath("../Uploads") , Path.GetFileName(hpf.FileName));
[code]...
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Apr 3, 2011
I'm using a fileupload control to upload images. The upload is working but I would like to know how to display the uploaded image. For example, user uploads file, (already done); the image is displayed in the page.
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Nov 22, 2010
protected void wbtnup_Click(object sender, EventArgs e)
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Jan 8, 2010
i am using Fileupload and 3 dropdown control in update panel, 3 dropdown will be post back on dropdown selected index change event (i.e like Country,states and city... get the value from db as per country,states and city)
THE PROBLEM IS
While postback the filename path is gone from the file upload control(as expected/ or Default property).
I am converting the file to byte array, to store in the database from file upload control.
How can i retain the value or Is there any way to solve this issue.
Is there any ajax control for file upload or any free controls which retain the value after postback also...?
Or it is possible to set the value to file upload control during postback ?
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