Excel through C#.NET

[DPK]

Hello friends!!!

I made a prog. to make the excel. It is running well but when it saves the excel file it open the save dialog box to save the file. Becasue I am using SAVE function here instead of SAVEAS. So pls can anyone tell me how to use SAVEAS function in it. If I am using the function then I am getting Error and Error is:

[ No overload for method 'SaveAs' takes '1' argument]

so pls help me here: My code is below:

protected void Button1_Click(object sender, EventArgs e)
{
Excel.Application xapp;
Excel.Workbook xwb;
Excel.Worksheet xws;
xapp = new Excel.Application();
xapp.Visible = true;
xwb = (Excel.Workbook)(xapp.Workbooks.Add(1));
xws = (Excel.Worksheet)xwb.ActiveSheet;
xws.Cells[1, 1] = "deepak";
xapp.Visible = true;
xapp.UserControl = true;
//xapp.Save(0); //this is working fine but showing save as DIALOG BOX
xws.SaveAs("c:\\temp\\MyFile.xls"); //this is giving me error
}

Thanks in advance!!!!!!!!!!