How To Check - FileUpload Control Has A File Selected In JavaScript?
Jan 17, 2011How do I check if an asp:FileUpload control has a file selected in JavaScript?
I've tried .HasFile and .value, both have returned undefined.
How do I check if an asp:FileUpload control has a file selected in JavaScript?
I've tried .HasFile and .value, both have returned undefined.
i 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 RepliesHow to set default file in <asp:FileUpload />
When a FileUpload is null then i want to set defualt file .
regarding my code :
Byte[] imgByte = null;
if (FileUpload1.HasFile && FileUpload1.PostedFile != null)
{
HttpPostedFile File = FileUpload1.PostedFile;
imgByte = new Byte[File.ContentLength];
File.InputStream.Read(imgByte, 0, File.ContentLength);
}
In the below code i am looking to check first if all fileuploads has file before process if statement, the below code is checking one FileUpload only.
protected void EditAdsUpdateBtn_Click(object sender, EventArgs e) {
SqlConnection EdCVCon = new SqlConnection(sc);
SqlCommand cmd = new SqlCommand();
var AdsNumL = EditAdsNumLbl.Text;
var UsrNme = Session["UsrNme"];
[code].....
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)
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?
View 1 Replieshow to image upload without button click c#?
View 1 RepliesI have on my page a fileUpload control. -
<asp:FileUpload ID="FileUpload1" runat="server" />
and a save button.
When I browse and pick a file and press save the code works fine. However if I manually type rubbish into the fileupload and press save nothing happens.How can I get the save button to work so that I can check what is in the fileupload is a proper and existing file?
Can i get the selected index,selected value , selected text using javascript of ajax combobox control. if yes send me the sample code.
View 7 RepliesHow to check FileUpload Control Empty or not?
I tried the following code,
But it was not working.
if ((this.FileUploadPanelToExcel !=null ))
I am working on ASP.NET3.5 platform. I have used a file upload control and a asp button to upload a file. Whenever i try to upload a file which contain special characterlike (file#&%.txt) it show crash and give the messeage "Server Error in 'myapplication' Application." A potentially dangerous Request.Files value was detected from the client (filename="...New Text &#.txt"). Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.
Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Files value was detected from the client (filename="...New Text &#.txt"). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. how can i prevent this crash using javascript at client side?
How can i check whether the file is selected in file upload or not
View 1 RepliesI am planning to create a web page with the name of the student, course,pic and the resume to be uploaded by the user for specified students...
If I upload the resumes of students with same name how to differentiate. Looking for creating a name of the file name randomly as next I'm planning to retrieve the resume via search function to download and view the resumes....
Saving the resumes with same name with differentiate or randomly to save the files with new file name....
How to get the full path of the file that is selected using the fileuploader.
View 1 RepliesHow can I get the file creation date of the file used in the FileUpload control?
View 3 RepliesI have file upload and Radio button list controls in the page
Requirement:
When the page load, the file upload control has to be enable = false when I click on the radio button list's Yes option then it has to be enable = true and when No option is clicked then enable = false
How can i check that a perticular date selected from calendar control is already past....
suppose i select 2/2/2010 then a message will be shown that oops! date u selected, already past.....
I need the full client path of the file on the server side so that I can use a library to get text from the document. It appears that due to security reasons, IE8 replaces the file name with
C:fakepathdocument.doc
Is there a way to get the full path to the file name?
i'me developing an ASP.NET application and it includes a FileUpload control, an object to show content of a format and a button to do functions. I want that when I upload the file, it will be shown in the object and for this reason i want to know the method to get the URL of the uploaded file.
This is the code:
[Code]....
At the moment i get file extension of the file like :
string fileExt = System.IO.Path.GetExtension(filUpload.FileName);
But if the user change the file extension of the file ( for example user could rename "test.txt" to "test.jpg" ), I can't get the real extension . What's the solution ?
I am using a fileupload control to display the contents of a text file in a textbox..if i use this
<asp:FileUpload ID="txtBoxInput" runat="server" Text="Browse" />
string FilePath = txtBoxInput.PostedFile.FileName;
it will get only the file name like bala.txt.i need like this D:New Folderala.txt
Instead of fileupload control i have used textbox to get the path like this D:New Folderala.txt
<asp:TextBox ID="txtBoxInput" runat="server" Width="451px"></asp:TextBox>
string FilePath = txtBoxInput.Text;
But i need browse button instead of textbox to get the path..
EDIT:My button click event
protected void buttonDisplay_Click(object sender, EventArgs e)
{
string FilePath = txtBoxInput.PostedFile.FileName;
if (File.Exists(FilePath))
{
StreamReader testTxt = new StreamReader(FilePath);
string allRead = testTxt.ReadToEnd();
testTxt.Close();
}
}
I have a webpage in asp.net 3.5 that uses the FileUpload control. When a user clicks on the "Browse" button (which is part of the control) the control displays a file select popup (dialog box). When the user selects the file which they wish to upload, by default the full path to the file is shown in the textbox (which is also part of the control); however, I wish for it to only display the file name and not the full path.
View 3 Repliesstring jSFile = ResolveUrl("~/MyProject/JavaScripts/dir/test.js");
if (!System.IO.File.Exists(jSFile))
{
...
}
This code doesn't work and I guess it's the jSFile that doesn't work well with the IO.File.Exists but I know the jSFile has a valid path because when I use few line later
Page.ClientScript.RegisterClientScriptInclude("myfile",jSFile);
it does attach the JavaScript file to the ASPX and all work fine.
I registration page with company information. A second page is a referral page. On the referral page I have 8 text boxes and 2 table control. 1st table control named project table control. 2nd table control named Contractor table control. Contractor table control fields are: Sub Contractor, Sub Contact Name Sub Address, Sub City, Sub State, Sub Zip, Sub Phone, Sub Email I have create the code to query through the registration table so user search for the company they would like to refer. I have also written code to to loop through checked boxes of selected companies. Which when place a break in VS 2008 I can see each company. Then I need to make sure when user save it save all data on the page. The problem I am having is when i click on the go to referral page from the registrations page it not passing the selected check boxes to the Contractor table control
View 1 Repliesi'm developing an application written in C#, and it uses a FileUpload control but i want to add some lines which the user can delete the file that has uploaded to the server. How can i do that?
View 6 Replies