how to handle button clicks and disappearing elements

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Hallo,

currently I have the problem, that as soon as I click a button (I have a sub handling the Click-Event) contents of some elements are deleted. Why is that and how can I handle that?
I do for example have a File Uploader and a Textfield. This is what happens as soon as my button is clicked. If I select a file and click the button the file is no longer selected

VB

Try
f_1.Text = btn_file.FileName.Replace(".pdf", "")
Catch ex As Exception

End Try

Posted 30-Oct-11 22:40pm

chris085

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kiran dangar 31-Oct-11 6:30am

Hi, please explain what you are trying to achieve... question is confusing..

chris085 31-Oct-11 7:18am

Hi, I want to copy&paste the file name into the textbox. However, as soon as I click the button (that triggers this), the file name is pasted into the textbox but the file is no longer selected in the File Upload Element and I wonder why.

saini arun 1-Nov-11 2:19am

This is how the file upload element behaves. Check the links provided in my answer below.

Anuja Pawar Indore 1-Nov-11 2:28am

Is your file upload button placed inside update panel?

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saini arun · Answer 1 · 2011-10-31T20:20:00

Solution 1

In case your issue is specific to file upload, following might help you.

http://stackoverflow.com/questions/2026087/maintain-value-in-fileupload-control-in-asp-net-c[^]

How to Maintain FileUpload Control’s State after PostBack[^]

Posted 31-Oct-11 20:20pm

saini arun