Reset a textbox field and combo box asp.net/vb.net

Question

1.00/5 (2 votes)

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Hi I'm very sorry if my english is so bad just neglict it anyway
I have a web app which have a textbox and a button, that download excelfiles

what I did is I create a class that will handle in downloading the excel files

this is the function that download my excel files from the webserver

VB

HttpContext.Current.Response.ContentType = "Application/xmsexcel"
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" & textbox1.text &".xls")            HttpContext.Current.Response.TransmitFile(Server.MapPath("~\Bin\toExcel.xls"))

my question is how can I reset the textbox value on my asp.net after I've downloaded the excel files

I've try Response.redirect but what happen is it didn't download the files, try using a javascript but I still don't get the best solution

hope someone can help me with this :)

Posted 15-Apr-13 23:39pm

iMaker.ph

Updated 16-Apr-13 1:17am

v2

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Comments

Thanks7872 16-Apr-13 6:20am

which textbox?how many textbox?what you want to do?

iMaker.ph 16-Apr-13 6:34am

I want to clear the item of the textbox
FYI textbox1 contains the filename of the excel that I want to download.

Prasad Khandekar 16-Apr-13 6:46am

Hello,

After clicking the button your server side handler is streaming the excel file and user probably gets a save as dialog and he/she saves the file. What you can do is use either a javascript timer and start it in the client side button handler which will take user to same page again via Location.Replace(URL) method. This way your page gest reloaded without affecting the already started download.

Another way without time could be as simple as setting the target attribute of form to _blank in the clide side download button click handler and use Location.Replace to reload the page. By setting target attribuet on the form you will force the post to open a new window.

Regards,

iMaker.ph 16-Apr-13 7:23am

isn't there anyway not to refresh the page ? I mean like just getting the elements on my web via vb.net and then change it, I'll try your 1st method anyway :)

2 solutions

Solution 1

Set textbox1.text=string.empty wherever you want to clear the textbox value.

Posted 16-Apr-13 0:37am

Thanks7872

Comments

iMaker.ph 16-Apr-13 7:16am

I've tried it but it won't work

Thanks7872 16-Apr-13 7:39am

suppose you have called function for excel on click event of the button.add textbox1.text=string.empty right below the function call thats it.if you still have any issues post the code here in which you are calling the function.i have tested and its working.

iMaker.ph 16-Apr-13 8:01am

yes your correct on my button click event I just call my class function that's all..

Thanks7872 16-Apr-13 8:06am

then write this line below the call to that function thats it....if this solves your issue,you can accept the above answer and rate it.

iMaker.ph 16-Apr-13 22:54pm

this isn't working :(

Thanks7872 16-Apr-13 23:54pm

can you send me your mail id...or send me the code you have implemented at rohanleuva@gmail.com

iMaker.ph 17-Apr-13 1:57am

Here's my code

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
dim DownloadFile as new FileDL
DownloadFile.excelfile(textbox1.text)
End Sub

Public Class FileDL
Public Sub Download(By Val filename as string)
HttpContext.Current.Response.ContentType = "Application/xmsexcel"
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=toExcel.xls") HttpContext.Current.Response.TransmitFile(Server.MapPath("~\Bin\"".xls"))
End Sub
End Class

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iMaker.ph · Accepted Answer · 2013-04-17T20:24:00

Solution 2

I think the only way to reset a textbox is to use a javascript

JavaScript

document.getElementById("<%= TextBox1.ClientID %>").value = "";

Posted 17-Apr-13 20:24pm

iMaker.ph

Comments

Thanks7872 30-Apr-13 1:44am

Have a look at Why textbox persists data during postback even if View State set to off.