I am using the FileUpload control to upload a file to my database. I would like to store the last modified date in the database as well.
How can I get that information using VB.Net?
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I am developing a website, in which client uploads some document files like doc, docx, htm, html, txt, pdf etc. I want to retrieve last modified date of an uploaded file. I have created one handler(.ashx) which does the job of saving the files.
Following is the code:
HttpPostedFile file = context.Request.Files[i];
string fileName = file.FileName;
file.SaveAs(Path.Combine(uploadPath, filename));
As you can see, its very simple to save the file using file.SaveAs() method. But this HttpPostedFile class is not exposing any property to retrieve last modified date of file.
how to retrieve last modified date of file before saving it to hard disk?
I'm using the ASP:Fileupload feature to upload and store PDF files to a database. I'm using the code below to store information about the file into the database.
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But, I also need to store the last modified date of the file in the database as well. How would I accomplish this?
In my applications need to seach files in particular directory based on modified date .i have to view in selected dates whats are files are modified in particular directory .
View 1 RepliesIs it possible to download a file and set its Date Modified attribute by means of Ajax? I tried to use server-side code below but couldn't set Date Modified although I explicitly used "Last-Modified" Response header:
try{
Response.Clear();
Response.AppendHeader("Content-Disposition", "attachment; filename="+l_attchmntFileSpec);
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Last-Modified", "Tue, 15 Nov 2010 12:45:26 GMT");
Response.BinaryWrite(l_attchmntToDownload);
Response.End();
}
catch (Exception Ex)
{ ...
}
Note: The file in question is stored in my database. It is represented by byte array l_attchmntToDownload.
Can anybody gives me the codes to get the date for upload file in asp.net(vb)
View 5 RepliesI have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview.
I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows).
If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that. Example Filename: DailySalesReport-1-15-2010. My only hangup with this is how do I sort on date, when it's a string value? Convert to date? How would I sort the whole dataset based on this converted value?
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I have added a datetime field to my db and added the default value binding to (getutcdate()), (allow null=false) how can I have the date/time added to my db when the user is adding his data ?
View 4 RepliesHow to get the full path of the file that is selected using the fileuploader.
View 1 Repliesi am uploading a file through file upload control , file size has greater then 4 MB, I have to give the proper alert msg to the user that file size exceeding the limit.how to do it , because at server side it is crashed on the IIS and not return to the server to check the file size validation.that how it is possible to validate the file size and give the proper alert messege
View 3 RepliesI have an ASP.Net ListBox that I'm trying to populate via jQuery, using the following snippet:
$("#MyList_btnAddAll").click(function(e) {
e.preventDefault();
$('#MyList_lstAll option').appendTo('#MyList_lstSelected');
});
The code has two ListBoxes in fact, one a "source" and the other a "destination". As you can tell above the ListBoxes are MyList_lstAll and MyList_lstSelected. These are rendered in the browser as <select> elements, as you'd expect.
The jQuery is working great, the items are moving from one ListBox to the other, the DOM is updated but when I submit this form (not using jQuery), the ListBoxes don't reflect this change on postback.
I realize my modifications via jQuery aren't available in ViewState but I thought since the DOM was updated these changes would be part of the postback data? But in the codebehind after postback the ListBox contents haven't changed. Does anyone know what might be going on and what I can do about it?
I wanted to customize/Restrict the File Uploader control as follows:
1. To restrict Users to not to upload some type of file like.exe
2. To restrict the user to a specific size limit.
I also wanted to be able to display appropriate messages to the user if the abover restrictions are violated.
Can I use the validations control to achieve the above goals. As I am already using these controls to display appropriate messages to the user in case of wrong/invalid data.
Actually i am trying to storing the uploaded file into database but when i run this codes:
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I got this error: " Incorrect syntax near the keyword 'File'.Incorrect syntax near the keyword 'File'. " can anybody tell me why this error came out?I tried toi change my connection string in web config,but it still showing the same error each time i run it in my local.
I am writing a simple web page that users can upload an image file. After the file is uploaded, Users can fill up other question in the web page. then users click the submit button to register them and the file is uploaded previously is move to special folder and is saved there. Know i want to delete the uploaded file if the user upload the file but dont click the submit button and close the web page. because i dont need the file uploaded until the user is not registered.I use Session_End event but i dont know why it dont work.
View 2 RepliesI should upload only the PDF files.How to validate?...
View 11 RepliesI have 1 fileupload control that I can upload file from it below is code :
int count = 0;
if (this.fuppdf.HasFile && !string.IsNullOrEmpty(this.txtarticle.Text))
{
string[] validext = { ".pdf" };
//string ext = System.IO.Path.GetExtension(fuppdf.PostedFile.FileName);
string ext = Path.GetExtension(fuppdf.PostedFile.FileName);
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and with below code I want save filename (uploaded filename) in database
SqlCommand _cmd = new SqlCommand("Fileuppdf", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
string data = Session["behcode"].ToString();
_cn.Open();
_cmd.Parameters.AddWithValue("@pdf", filename);
_cmd.Parameters.AddWithValue("@Behcode", data);
_cmd.Parameters.AddWithValue("@id", Convert.ToInt32(ViewState["Id"]));
but it make error in this line
_cmd.Parameters.AddWithValue("@pdf", filename);
error===>("The name 'filename' doesn't exist in the current context")
I know that I define filename in
foreach (string s in files)but I don't know how I can save it name in database
I am having a following .cs file with some classes as follows
public partial class Student {
public int ID { get; set;}
}
public partial class Student2 {
public string name { get ; set; }
}
I am having above code in my .cs file.
When i upload that .cs file, i need to get the class name that i am having in the .cs file.
(i.e) Student,Student2.
I am using an instance of DirectoryInfo to browse and retrive the files and some file attributes on a physical directory. This is displayed in a html table. But if you have for example text files (.txt) or word dokuments (.docx) How can I display the correct icon that is associated with the file in my html table? And further on how can I reach the user who modified the file the last time? Where is that info saved?
Is the DirectoryInfo the object I should use for this purpose? or are there other objects or functions that I should looking at?
I recently purchased the source code of an existing DotNetNuke module in order to make a few modifications. The source of the module contains various .ascx, ascx.resx and .ascx.vb files. as well as a main.dll file. Lets call them:
myfile.ascx
myfile.ascx.resx
myfile.ascx.vb
myfile.dll
I'm using Visual Studio 2008 PRO.
I've made a few changes to "myfile.ascx.vb". When I rebuild "my_module" via Build --> Rebuild my_module, I get confirmation that there are no errors in the Error List. I then upload a fresh copy of "mydll.dll" from the "/obj/release/" folder on my local machine up to the "/bin/" folder on my DotNetNuke site.
The issue that I'm having is that the changes that I made to "myfile.ascx.vb" are not appearing on my DotNetNuke site. Are there additional files that need to uploaded? I've checked timestamps on all of my local files and the only files that are updated after the build is "mydll.dll".
I would like to use HTML input file type in my aspx page to allow user to browse for a excel file and then read the content of the excel sheet programmatically.If I want to read the excel sheet I need the full path of the file to connect to the excel sheet using asp.net.I do not understand how can I get the full path of the file.I know I can get the filename using postedFile.FileName property.But I need the full path of the file.
View 2 RepliesWhen I upload a file through a web page to a directory on the webserver the file does not inherit the parent folders rights. So when a user tries to access the file from the local network after the upload they recieve access denied. How can I set the rights on the file after the upload or get the rights to set correctly when the file is uploaded. The file uploads correctly but only has the rights of Network service, system,internet guest account and IIS_WPG. I need it to have a specific user or everyone which the parent folder has and is set to propogate permissions.
View 6 RepliesI was so proud because I researched saving files and figured out how to extract the file name from what might be the full path. However, this doesn't work as I had expected. I still get the exception!
Here's the function that saves the file:
protected string SaveFile(HttpPostedFile file)
{
string savePath = Server.MapPath("~/Articles/");
string fileName = Path.GetFileName(article.FileName);
savePath += DateTime.Now.ToString();
savePath += " _ ";
savePath += fileName;
article.SaveAs(savePath);
return DateTime.Now.ToString() + " _ " + fileName;
}
i have a file upload control in my form.
How do i check if the user has chosen a file to be uploaded or not.
At present the selected file uploads however if no file is selected the script crashes...
When inserting a binary file do you know what will be the correct content type for extensions like .txt or .gif or others not in your sample? Is there a list of correct content types?
View 1 Repliesim tryin to upload files to the database using the FileUpload. the upload take place. when i download the file again ( word document, excel document.. a text document (.txt), a winzip file) , it turns that the file is corrupted and cannot be opened.. an image file or an mp3 file doesnt present this problem. my application is developped usin vb.net 2010 and sql server 2005 as the database..
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