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Javascript needs to run fileupload if "OK" is licked for overwrite

Javascript needs to run fileupload if "OK" is licked for overwrite

Javascript needs to run fileupload if "OK" is licked for overwrite

I have a form where a user uploads an excel file, renames the file then checks to see if the file exist. If it doesn't exist it saves fine. I get the message to overwrite if it exist, but when I click on the OK button nothing happens. How do I make this work? Thanks, I could really use your help. Here is my code:

//JavaScript Code
<script type="text/javascript" >
function Confirm()
window.onload = function () {
var confirm_value = document.createElement("INPUT");
confirm_value.type = "hidden";
confirm_value.name = "confirm_value";
if (confirm("File already exist. Do you want to overwrite?")) {
confirm_value.value = "Yes";
else {
confirm_value.value = "No";

//VB.net try block from code
If ext.Trim().ToLower() = "xls" Or ext.Trim().ToLower() = "xlsx" Then
saveInfo = "Original File Name: " & fileName & "<br/>"
saveInfo += "File Size: " & fuProductCapsuleEXCEL.PostedFile.ContentLength / 1000 & " Kilobytes <br/>"
saveInfo += "Content Type: " & fuProductCapsuleEXCEL.PostedFile.ContentType & "<br/>"
newFileName = salesYear + "-" + supCID + "." + ext
saveInfo += "New File Name: " + newFileName.ToString()

'check if file already exist
exist = CheckForDup(newFileName)

'if file doesent exist, add it to folder

If exist = False Then
fuProductCapsuleEXCEL.SaveAs(Application("IMARK_RootPath") & "/UPLOADED_FILE/G2G_SKUs/" + newFileName)
lblSaveInfo.Text = saveInfo.ToString()
End If

'file with newfilename already in folder. Check for overwrite
If exist = True Then
ClientScript.RegisterClientScriptBlock(Me.GetType(), "confirm", "Confirm()", True)

End If

End If

Catch ex As Exception
Throw ex

End Try

RE: Javascript needs to run fileupload if "OK" is licked for overwrite

that is vb.net. not javascript.

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