using System; 
using System.Collections; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Web; 
using System.Web.SessionState; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.HtmlControls; 
using System.IO; 
using System.Net; 
using System.Net.Sockets; 
using System.Timers; 

namespace SpawnRandomMpi 
{ 
public class WebForm1 : System.Web.UI.Page 
{ 
protected System.Web.UI.WebControls.Label Title; 
protected System.Web.UI.HtmlControls.HtmlInputFile FileUploaded; 
protected System.Web.UI.WebControls.Label FileerrorLabel; 
protected System.Web.UI.WebControls.TextBox IPSolaris; 
protected System.Web.UI.WebControls.Label IPAddLabel; 
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2; 
protected System.Web.UI.WebControls.ListBox ListBox1; 
protected System.Web.UI.WebControls.Button Problem1Button; 
protected System.Web.UI.WebControls.DropDownList DropDownList1; 
protected System.Web.UI.WebControls.Label RandomLabel; 
protected System.Web.UI.WebControls.TextBox nBox; 
protected System.Web.UI.WebControls.TextBox mBox; 
protected System.Web.UI.WebControls.Panel RandomPanel; 
protected System.Web.UI.WebControls.Panel FilePanel; 
protected System.Web.UI.WebControls.Label FinalLabel; 
protected System.Web.UI.WebControls.Label LabelFile; 
protected System.Web.UI.WebControls.Label CurrentStatus; 
protected System.Web.UI.WebControls.DataGrid DataGrid1; 
//Sql Definations 

protected System.Web.UI.WebControls.TextBox TextBox1; 
protected System.Web.UI.WebControls.Label Label1; 
protected System.Web.UI.WebControls.Button submit; 
protected System.Web.UI.WebControls.Label result; 
protected ArrayList method,values; 
// String of FileName (has to be static else after postback value nulls) 
//dont know why 
protected static string filename; 

private void Page_Load(object sender, System.EventArgs e) 
{ 
if(!IsPostBack) 
{ 
RandomPanel.Visible=false; 
method=new ArrayList(); 
method.Add("File"); 
method.Add("Random"); 
DropDownList1.DataSource=method; 
DropDownList1.DataBind(); 
DataGrid1.Visible=false; 
filename = ""; 
} 
else 
{ 
if((this.Page.Request.Params.Get("__EVENTTARGET")).CompareTo("DropDownList1")==0) 
{ 
DataGrid1.Visible=false; 
} 
} 

} 

#region Web Form Designer generated code 
override protected void OnInit(EventArgs e) 
{ 
// 
// CODEGEN: This call is required by the ASP.NET Web Form Designer. 
// 
InitializeComponent(); 
base.OnInit(e); 
} 

/// <summary> 
/// Required method for Designer support - do not modify 
/// the contents of this method with the code editor. 
/// </summary> 
private void InitializeComponent() 
{ 
///// 
this.DropDownList1.SelectedIndexChanged += new System.EventHandler(this.DropDownList1_SelectedIndexChanged); 
///// 
this.Load += new System.EventHandler(this.Page_Load); 
((System.ComponentModel.ISupportInitialize)(this.sqldataset)).EndInit(); 
} 

private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e) 
{ 
if(DropDownList1.SelectedIndex==0 ) 
{ 
FilePanel.Visible=true; 
RandomPanel.Visible=false; 
} 
else 
{ 
FilePanel.Visible=false; 
RandomPanel.Visible=true; 
} 
FileStream fs = new FileStream("c:\\temp\\stamp.txt", FileMode.Append); 
StreamWriter w2 = new StreamWriter(fs,System.Text.Encoding.Default); 

// Write into file to check if the event is fired 
w2.Write("i fired!"); 
fs.Close(); 
w2.close(); 
}

autopostback="True"