Web Forms :: Validation For Upload Button Not Working?
Apr 19, 2010
I have implemented a validation for the file upload control such that, only when some entry is made in the file upload control textbox, the Upload button will be enabled else it wil be disabled.
When I implemented this , the validation on the Upload button is not working. For the upload button I need to check certain fields are not empty. But I find that because of the above implementation, the validation function for this one is not working .
I have a file upload control and a submit button(). when file upload haven't any value(no file selected), button is working. when it has selected any file to be uploaded its not enter to the event handler where i have put a breakpoint
Hello to all I am using required field validator and i want to disable it on buttob click event on submitt button but the button click event is not working properly as it disable the validator on second time when i click the button,and refersing the page first time and i do'nt want to referesh page here i am attching my aspx as well as aspx/cs code
I am creating dropdown controls in code behind. in some conditions I need to add validation control to dropdowlist. But Validation not firing when I submit button.
If mQuestion.RequiredToAnswer = True Then Dim mValidator As New RequiredFieldValidator mValidator.ControlToValidate = mDDL.ID mValidator.InitialValue = mDDL.Items(0).Text mValidator.Display = ValidatorDisplay.Dynamic mValidator.ErrorMessage = "* Required!" mTableCell.Controls.Add(mValidator) End If
I have other dropdown controls on aspx page with validation comtrols. Those are working fine. Only when I ddl and validations from code not working?
jQuery validation is working fine on my machine, when i pushed it to test server it won't it's throwing some errors which is kind of surprising.These are the errors I am getting: $.validator is null or not an object...I've never gotten this error before and it throwing an error when I declared a variable like var isValid.I don't know what to do. I am doing the custom validation methods not in the document.ready(). Does this cause this error? I wonder because all jquery validations are passing and hitting the server side validations.
Im trying to upload file (lets say .xls file) but i need to check if the file type is macth with it binary. for example we can renamefileA.mp3 as fileA.xls on our windows and upload it. i need to check this first. can anyone suggest me how to check this file type ?based from what I browse, I found that BInaryReading can do it. here is the code
[Code]....
this check correctly. BUT, once it returns TRUE (when FileA.xls is really an XLS file), the POSTED FILE content will be 0. and the upload went file (the SAVEAS works) , and the file copied to the specified directory. but the content is 0 and when i open it, it said that the file is corrupted.i think this is due to the BINARY READER. is that true ? because before above method called, i make a breakpoint and the POSTEDFILE content length is still 16kb. after the method called, its 0.
I have an application that lets the use upload a pdf, I wanted to put a limit on the size the pdf can be. If the user tried to upload something too big I wanted to display a message to the user. I am trying to use a custom validator where it checks the size of the file and if it is too big it will set the "IsValid" to false. Is this the correct way to go about doing this? Is there a better way? When I test it, everything works in IE 8 and FF, but it does not work in IE 7 and can't figure out why.Here is what I have so far, this is on my aspx page:
Some time back i posted for help in uploading CSV file to DB. With the assistance of other members, i was able to set that up on a test page and got the functionality working.. Now project is coming to the end and need to take that code / logic and incorporate with our application. On certain forms, we need to allow the user to export / import via a CSV file.. So this question is muti part for each function.
#1 Export = Since each form is unique, how can i setup the page to export that forms data that is currently in the DB? (I've used this control before [URL] and worked great) for excel. This may work fine for exporting the data out of the db for the user.
#2 Import, if the above is used or some other solution to export the specific table data, is there anyway to validate that the csv file that is being uploaded contains all the columns and is in the correct order? I mean if they were to export the data, but come back few days later to import it, and didnt realize that they selected a csv for another page or maybe they picked the right file, but while editing it they removed a comma or entered some data that would throw the format out of wack.. just looking for a way to read the selected file to import and compare to the table it is suppose to go into and make sure that the columns match and if possible, check for duplicates. I have read thru the forum and found ways to read the file into memory, set the data to a datatable or dataset and working with it that way.
So really looking for some good examples of being able to allow the export of data to .CSV and then allowing the data to be imported back into the table.(with validation in place before the import occurs)
I have few controls which r validated for blank on a page having 5 buttons
I want the validation to take place only on save button click & not on any other button
<asp:ValidationSummary ID="ValidationSummary1" HeaderText="You must enter a value in the following fields:" EnableClientScript="true" ShowMessageBox="true" ShowSummary="false" DisplayMode="BulletList" runat="server" />
i have a file upload control to upload picture.i want the user can only upload picture not any other file . when i used file upload control ,user can insert word file also,this should not be done. user can only insert pictures,otherwise message should be appear
Is it possible to directly upload a file after it is browsed and selected? I mean user should not click on "submit" button after file is selected. It should be uploaded automatically when selected. Is it possible to do that with fileupload control?
Until the Dec 29th my website was working fine. Then My fileupload problems started happening. My fileupload page would simply quit and say the page can not be found. I maximized all my timeout settings and that did not work. I called my hosting company and apparently they have no problem using my page to upload files from their geographical area. So then I concluded it might be a network problem. I ran a trace route and could not really figure out where the problem was. So, I have no idea what is going on. Is it possible that my site is being blocked by some black list out there somewhere?
I have a form with a few fields that the user has to fill, and then an upload field that allows the user to upload their article (I haven't added the code to check for file size and format yet; trying to get it to save first!)
For some reason, the click event of the button doesn't run, and I don't get any exceptions or such. Here's the .aspx file:
<%@ Page Language="C#" AutoEventWireup="true" title="Submit an Article" CodeFile="SubmitArticle.aspx.cs" Inherits="SubmitArticle" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">
have a gridview in that i have checkbox and file upload controls and common submit button outside gridview.if i checked a row checkbox and i need to check whether the file upload control contains any value or not.if checkbox is checked and file upload control contains values then i will insert the details into database table.if not means i will show a message. if not checked means its not a problem no need to validate the control. how to do this..
I have a simple file input field that utilizes a File.Copy routine to move the file from the local store to the server. This part of the application works fine in staging but in production I had to establish a work around in order to get it to work. I have the users do a Save As on the file they want to upload and then slightly change the name of the file and then it will upload. I do not have to do this in staging with the same file in order for it to work. I am racking my brain as to whether this is a permissions issue or code issue or what.
i have a fileUpload in my web page but it's not supporting all files eg:
when i browse xls file it's working for small size files but when i go for a little bigger files let's say 50-60k it won't work and will give me an offline web page, i have tried the input HTML on server mode and still having the same problem.
I am using .net 4.0 on my localhost and i have a form with some textbox and file uplaod controls,for validation i have used various validation controls and a regular expression for validating image format. the web page is working fine at my side ,but when i upload it on server (Godady) and when my client uses the webpage,it just dont work the way it should. Is there any thing that is keeping the validation not work.
I have a asp.net page with a text box to enter the zip code.I use requiredField Validation for this zip code text box.I use asp:ImageButton to navigate back and forth from this screen.My problem is if i enter an invalid zipcode( or blank), it will stop the post back and shows the error message if i use BACK button (image button).But it just post back and go to the next screen IF i click the forward image button!
