EXCEL question saving a file saving the the first column as read only

[Luis Esteban Valencia]

in the Button1_Click I need to make the 1st column saved as readonly.

How can I do this?

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.Data.SqlClient;
using System.Xml.Xsl;
using System.Xml;

namespace PDM.excel
{
/// <summary>
/// Summary description for WebForm3.
/// </summary>
public class WebForm3 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
public SqlConnection conDB = new SqlConnection();

static public string[] LanguageStr =
{
"English","French","Spanish"};
static public string[] DropDownListStr =
{
"Language_DropDownList"};
protected System.Web.UI.WebControls.DropDownList
Language_DropDownList;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Button Button1;

static public string[][] AddStrArray =
{
LanguageStr};

private void Fill_DropDownList()
{
for (int i = 0; i < DropDownListStr.Length; i++)
{
string CtrlName= DropDownListStr;
DropDownList MyList =
(DropDownList)Page.FindControl(CtrlName);
// Populate all the checkboxes
string[] ToPopulate = AddStrArray;
for (int j = 0; j < ToPopulate.Length; j++)
{
MyList.Items.Add(new ListItem(ToPopulate[j],
j.ToString()));
}
}
}

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
if(!Page.IsPostBack)
{
Fill_DropDownList();


}

}

#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.Language_DropDownList.SelectedIndexChanged += new
System.EventHandler(this.Language_DropDownList_SelectedIndexChanged);
this.Button1.Click += new
System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

public DataSet DataToExcel = new DataSet();



private void Language_DropDownList_SelectedIndexChanged(object
sender, System.EventArgs e)
{
int getSelectedIndex = Language_DropDownList.SelectedIndex+1;
conDB.ConnectionString = "data
source=10.195.17.7;database=devnew;uid=bounaajak;pwd=ehsfirst;packet
size=4096";
SqlDataAdapter da = new SqlDataAdapter("Select string_id,
string from pdm_translations where language_id = 1 and string_id not in
(select string_id from pdm_translations where language_id = " +
getSelectedIndex.ToString() + ") ", conDB);
da.Fill(DataToExcel, "DataToExcel");
Session["Tabla"] = Language_DropDownList.SelectedItem.Text;
DataToExcel.WriteXml(Server.MapPath(Session["Tabla"] +
".xml"));
DataGrid1.DataSource = DataToExcel;
DataGrid1.DataBind();
Language_DropDownList.Visible = false;

}

private void Button1_Click(object sender, System.EventArgs e)
{
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = "";
DataSet ds = new DataSet();
ds.ReadXml(Server.MapPath(Session["Tabla"] + ".xml"));
XmlDataDocument xdd = new XmlDataDocument(ds);
XslTransform xt = new XslTransform();
xt.Load(Server.MapPath("Excel.xsl"));
xt.Transform(xdd, null, Response.OutputStream);
Response.End();
}




}
}