Could not find a part of the path

Question

How to solve this error. System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Users\Administrator\Documents\Visual Studio 2010\WebSites\atndreport\Document\Book1.csv'

 

protected void btnSubmit_Click(object sender, EventArgs e)

{

if (FileUpload1.HasFile)

{

string filename = FileUpload1.FileName.ToString();

string path = Server.MapPath("~/Document/" + filename);

FileUpload1.PostedFile.SaveAs(path);

FetchData(path);

}

}

protected void FetchData(string filepath)

{

DataTable dt = new DataTable();

bool IsFirstRowHeader = true;

string[] columnf = new string[] { "" };

using (TextFieldParser parser = new TextFieldParser(filepath))

{

parser.TrimWhiteSpace = true;

parser.TextFieldType = FieldType.Delimited;

parser.SetDelimiters(",");

if (IsFirstRowHeader)

{

columnf = parser.ReadFields();

foreach (string sds in columnf)

{

DataColumn year = new DataColumn(sds.Trim().ToLower(), Type.GetType("System.String"));

dt.Columns.Add(year);

}

}

while (true)

{

if (IsFirstRowHeader == false)

{

string[] parts = parser.ReadFields();

if (parts == null)

{

break;

}

dt.Rows.Add(parts);

}

IsFirstRowHeader = false;

}

}

gvDetails.DataSource = dt;

gvDetails.DataBind();

}

}