How do you redirect to another page after firing the submit button?

 My code for my button in Asp.NET is

<asp:button id="btnClear2" cssclass="dnnSecondaryAction " runat="server" resourcekey="Submit"
      onclick="btnSubmit_Click" />

and then it is passed on to C# DNN fucntion to complete the event handling when it's fired, where it sends an email out, upload the files to the server and creates a folder.

The problem is, when its done, it redirects back to itself with a fresh form.

I'm assuming Server side form control is designed to post-back to self... When I viewsource in the web browser, the action is designated to itself.

How can I fix this?

I've tried adding the Response.Redirect() with the URL, at the end of the function, but it still doesn't work.

Here is the code for the submit button function.

protected void btnSubmit_Click(object sender, EventArgs e)
{
Azshops az = new Azshops();
string foldername = System.String.Empty;
DateTime nowdate = DateTime.Now;
foldername = nowdate.ToString(datePatt);

makeFolder(string.Format("{0}{1}", az.MpPath, foldername));

RadUpload1.TargetPhysicalFolder = string.Format("{0}{1}", az.MpPath, foldername);

var dt1 = filldate( DateNeeded.SelectedDate);
var dt2 = filldate(DeskCopyDateNeeded.SelectedDate);

UploadedFile file;

MPOrderForm m;
m = new MPOrderForm
{
AssignedUserId = UserId
,
CreatedByUserId = UserId
,
CreatedOnDate = DateTime.Now
,
FirstName = txtFirstName.Text.Trim()
,
LastName = txtLastName.Text.Trim()
,
Email = txtEmail.Text.Trim()
,
Campus = txtCampus.Text.Trim()
,
Department = txtDepartment.Text.Trim()
,
OfficePhone = txtOfficePhone.Text.Trim()
,
HomePhone = txtHomePhone.Text.Trim()
,
Author = txtAuthor.Text.Trim()
,
Title = txtTitle.Text.Trim()
,
Semester = txtSemester.Text.Trim()
,
DateNeeded = dt1
,
Course = txtCourse.Text.Trim()
,
SectionNumbers = txtSectionNumbers.Text.Trim()
,
EstEnrollment = fillInt(txtEstEnrollment.Text)
,
ReqOpt = fillBool(rdoReqOpt.Items[0])
,
ProductIs = myProductIs.Value
,
CopyRightClearance = fillBool(rdoCopyRightClearance.Items[0])
,
RequireCopyRightQuote = fillBool(rdoRequireCopyRightQuote.Items[0])
,
DeskCopyQty = txtDeskCopyQty.Text.Trim()
,
DeskCopyDateNeeded =dt2

,
ProofCopy = fillBool(rdoProofCopy.Items[0])
,
PrintingStyle = myPrintingStyle.Value
,
CoverColor = myCoverColor.Value
,
CustomCover = myCustomCover.Value
,
//BindingOption = ddlBindingOptions.SelectedValue
BindingOption =myBindingOption.Value
,
PaginationRequired = fillBool(rdoPaginationRequired.Items[0])
,
TOC = fillBool(rdoTOC.Items[0])
,
AdditionalSupplies = txtAdditionalSupplies.Text.Trim()
,
SpecialInstructions = txtSpecialInstructions.Text.Trim()
,
Attachments = formHasAttachments(RadUpload1.UploadedFiles.Count)
,
OkToSubmit = true
};

m.OnlineFormId= OnlineOrderFormController.SaveOnlineForm(m, this.PortalId, this.ModuleId, this.TabId);

string fname = System.String.Empty;
string lname = System.String.Empty;
string campus = System.String.Empty;
string dept = System.String.Empty;
//Firstname
if (m.FirstName.Length >= 1)
{
fname = m.FirstName.Substring(0, 1);
}
else
{
fname = "f";
}

//Lastname
if (m.LastName.Length >= 3)
{
lname = m.LastName.Substring(0, 3);
}
else if (m.LastName.Length >= 2)
{
lname = m.LastName.Substring(0,2);
}
else if (m.LastName.Length >= 1)
{
lname = m.LastName.Substring(0, 1);
}
else
{
lname = "l";
}

//Campus
if (m.Campus.Length >= 4)
{
campus = m.Campus.Substring(0, 4);
}
else if (m.Campus.Length >= 2)
{
campus = m.Campus.Substring(0, 2);
}
else if (m.Campus.Length >= 1)
{
campus = m.Campus.Substring(0, 1);
}
else
{
campus = "c";
}


//Dept
if (m.Department.Length >= 3)
{
dept = m.Department.Substring(0, 3);
}
else if (m.Department.Length >= 2)
{
dept = m.Department.Substring(0, 2);
}
else if (m.Department.Length >= 1)
{
dept = m.Department.Substring(0, 1);
}
else
{
dept = "d";
}


foldername = string.Format("{0}{1}{2}{3}",fname,lname,campus,dept);






RadProgressContext progress = RadProgressContext.Current;

RadProgressArea1.ProgressIndicators = RadProgressArea1.ProgressIndicators | ~ProgressIndicators.SelectedFilesCount;
RadProgressArea1.Localization.UploadedFiles = "Processed";
RadProgressArea1.Localization.TotalFiles = "";
RadProgressArea1.Localization.CurrentFileName = "File: ";



progress.SecondaryPercent = "0";
progress.SecondaryValue = "0";
progress.SecondaryTotal = "0";


//rename the uploaded file to suffix to aid in locating files
foreach (UploadedFile f in RadUpload1.UploadedFiles)
{
string targetfolder = string.Format(@"{0}\{1}\",RadUpload1.TargetPhysicalFolder,foldername);


makeFolder(string.Format("{0}", targetfolder));
string filename = string.Format("{0}{1}", targetfolder, f.FileName);
f.SaveAs(filename, true);
if (f.ContentLength > 0)
{
LooongMethodWhichUpdatesTheProgressContext(f);
}
}


if (RadUpload1.UploadedFiles.Count > 0)
{
labelNoResults.Visible = false;
repeaterResults.Visible = true;
repeaterResults.DataSource = RadUpload1.UploadedFiles;
repeaterResults.DataBind();
}
else
{
labelNoResults.Visible = true;
repeaterResults.Visible = false;
}





sndEmail(m, RadUpload1.UploadedFiles.Count);

Response.Redirect("submit.aspx");

}