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asp textboxt visible=false postback

Mr_Shaw
Mr_Shaw asked
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Last Modified: 2013-12-17
I have an ASP textbox in which I am storing a value in between postback.

When I set the visible property of the textbox to True the value remains between postback. When I set the visible property to False, the stored value in the textbox is not kept.

The view state property of the textbox it set to true.

I am not sure why this is happening, can anybody help?

Thanks
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Senior Consultant - Deloitte
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Author

Commented:
I thought hidden fields were only in HTML on ASP

Author

Commented:
ah.. spotted it...

i'll give it go.
Geoff BryanDeveloper

Commented:
When you set the ASP textbox visible property to false, the server generates the page without the box, which is why any value is lost on postback. If you try to access a hidden textbox using javascript it will throw an error because as far as the browser is concerned the textbox simply doesn't exist.

To save a value on postback you need to replace the textbox with a 'HiddenField'. This exists on the page when rendered to the client browser, but is always hidden. Any value stored in it will be retaiined on poastback, but the user cannot see or edit the value.

Author

Commented:
thanks
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