Read a text file on client side from c# .net

Question

I have a web app that  when a button is clicked it will read a text file on the users c drive and display the results of the text file.

StreamReader re = File.OpenText(@"c:\Datadetails\serverresults.bcp");

string input = null;

while ((input = re.ReadLine()) != null)

{

Label1.Text = (input);

}

I have used the  above code and when the button is clicked it displays data from the servers c drive only. I need client side code that can read a file on the users local c drive and display it to the user,

The code below is a javascript function that is suppose to get the data client side  but I cannot get this to work when a button is clicked. Does anyone know how I could place this in a button control to get this working.

Thanks for any help if anyone knows how to resolve this

 

 

function ReadFromFile() {

var strContent = ReadFileToString(document.Form1.TxtFileName.value);

document.Form1.HdnContent.value = strContent;

document.Form1.submit();

}

function ReadFileToString(strFileName) {

var strContents;

strContents = "";

objFSO = new ActiveXObject("Scripting.FileSystemObject");

if (objFSO.FileExists(strFileName)) {

strContents = objFSO.OpenTextFile(strFileName, 1).ReadAll();

}

return strContents;

 

I tried placing this in  Page.ClientScript.RegisterStartupScript but could not work out the correct syntax.