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Karthick RajaKarthick Raja 

How to download file(text) in visualforce page

Hi folks,
       I have a visualforce page in which there is a button called download.
If I click that button then it will download all the account records as text file. For this use case how we can implement.
I Dont want to redirect to another visualforce page
Can someone suggest some ideas to implement.

User-added image

Thanks in advance,
You could probably just set your url of the download link to be data:  If you look here [1] you can see how they do it in Javascript and it would be a matter of simply converting that over to VF.

My guess at the VF page
<a href="data:text/plain;charset=utf-8;base64,{!encodedData}">Download</a>

String data = '';

public String getEncodedData() {
    return EncodingUtils.base64Encode(Blob.valueOf(data));

I'm encoding it as base64 to make the url safe and not having to escape anything.  But you can do it without encoding if you escape correctly.